ElastiCache esempi utilizzando AWS CLI

Come aggiungere tag a una risorsa

L’esempio add-tags-to-resource seguente aggiunge un massimo di 10 tag, coppie chiave-valore, a una risorsa cluster o snapshot.

aws elasticache add-tags-to-resource \
    --resource-name "arn:aws:elasticache:us-east-1:1234567890:cluster:my-mem-cluster" \
    --tags '{"20150202":15, "ElastiCache":"Service"}'

Output:

{
    "TagList": [
        {
            "Value": "20150202",
            "Key": "APIVersion"
        },
        {
            "Value": "ElastiCache",
            "Key": "Service"
        }
    ]
}

Per ulteriori informazioni, consulta Monitoraggio dei costi con i tag di allocazione dei costi nella Guida per l’utente di ElastiCache.

Come autorizzare l’ingresso del gruppo di sicurezza cache

L’esempio authorize-cache-security-group-ingress seguente consente l’ingresso di rete a un gruppo di sicurezza cache.

aws elasticache authorize-cache-security-group-ingress \
     --cache-security-group-name  "my-sec-grp" \
     --ec2-security-group-name "my-ec2-sec-grp" \
     --ec2-security-group-owner-id "1234567890"

Il comando non produce alcun output.

Per ulteriori informazioni, consulta Self-Service Updates in Amazon ElastiCache nella Elasticache User Guide.

Come applicare un aggiornamento del servizio

L’esempio batch-apply-update-action seguente applica un aggiornamento del servizio a un cluster Redis.

aws elasticache batch-apply-update-action \
    --service-update-name elc-xxxxx406-xxx \
    --replication-group-ids test-cluster

Output:

{
    "ProcessedUpdateActions": [
        {
            "ReplicationGroupId": "pat-cluster",
            "ServiceUpdateName": "elc-xxxxx406-xxx",
            "UpdateActionStatus": "waiting-to-start"
        }
    ],
    "UnprocessedUpdateActions": []
}

Per ulteriori informazioni, consulta Self-Service Updates in Amazon ElastiCache nella Elasticache User Guide.

Come arrestare un aggiornamento del servizio

L’esempio batch-stop-update-action seguente applica un aggiornamento del servizio a un cluster Redis.

aws elasticache batch-stop-update-action \
    --service-update-name elc-xxxxx406-xxx \
    --replication-group-ids test-cluster

Output:

{
    "ProcessedUpdateActions": [
        {
            "ReplicationGroupId": "pat-cluster",
            "ServiceUpdateName": "elc-xxxxx406-xxx",
            "UpdateActionStatus": "stopping"
        }
    ],
    "UnprocessedUpdateActions": []
}

Per ulteriori informazioni, consulta Self-Service Updates in Amazon ElastiCache nella Elasticache User Guide.

Come copiare una snapshot

L’esempio copy-snapshot seguente crea una copia di uno snapshot esistente.

aws elasticache copy-snapshot \
    --source-snapshot-name "my-snapshot" \
    --target-snapshot-name "my-snapshot-copy"

Output:

{
    "Snapshot":{
        "Engine": "redis",
        "CacheParameterGroupName": "default.redis3.2",
        "VpcId": "vpc-3820329f3",
        "CacheClusterId": "my-redis4",
        "SnapshotRetentionLimit": 7,
        "NumCacheNodes": 1,
        "SnapshotName": "my-snapshot-copy",
        "CacheClusterCreateTime": "2016-12-21T22:24:04.955Z",
        "AutoMinorVersionUpgrade": true,
        "PreferredAvailabilityZone": "us-east-1c",
        "SnapshotStatus": "creating",
        "SnapshotSource": "manual",
        "SnapshotWindow": "07:00-08:00",
        "EngineVersion": "3.2.4",
        "NodeSnapshots": [
            {
                "CacheSize": "3 MB",
                "SnapshotCreateTime": "2016-12-28T07:00:52Z",
                "CacheNodeId": "0001",
                "CacheNodeCreateTime": "2016-12-21T22:24:04.955Z"
            }
        ],
        "CacheSubnetGroupName": "default",
        "Port": 6379,
        "PreferredMaintenanceWindow": "tue:09:30-tue:10:30",
        "CacheNodeType": "cache.m3.large"
    }
}

Per ulteriori informazioni, consulta Esportazione di un backup nella Guida per l’utente di ElastiCache.

Come creare un cluster di cache

L’esempio create-cache-cluster seguente crea un cluster di cache utilizzando il motore Redis.

aws elasticache create-cache-cluster \
    --cache-cluster-id "cluster-test" \
    --engine redis \
    --cache-node-type cache.m5.large \
    --num-cache-nodes 1

Output:

{
    "CacheCluster": {
        "CacheClusterId": "cluster-test",
        "ClientDownloadLandingPage": "https://console.aws.amazon.com/elasticache/home#client-download:",
        "CacheNodeType": "cache.m5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.5",
        "CacheClusterStatus": "creating",
        "NumCacheNodes": 1,
        "PreferredMaintenanceWindow": "sat:13:00-sat:14:00",
        "PendingModifiedValues": {},
        "CacheSecurityGroups": [],
        "CacheParameterGroup": {
            "CacheParameterGroupName": "default.redis5.0",
            "ParameterApplyStatus": "in-sync",
            "CacheNodeIdsToReboot": []
        },
        "CacheSubnetGroupName": "default",
        "AutoMinorVersionUpgrade": true,
        "SnapshotRetentionLimit": 0,
        "SnapshotWindow": "06:30-07:30",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Creazione di un cluster nella Guida per l’utente di ElastiCache.

Come creare un gruppo di parametri cache

L'create-cache-parameter-groupesempio seguente crea un nuovo gruppo di parametri Amazon ElastiCache cache.

aws elasticache create-cache-parameter-group \
    --cache-parameter-group-family "redis5.0" \
    --cache-parameter-group-name "mygroup" \
    --description "mygroup"

Output:

{
    "CacheParameterGroup": {
        "CacheParameterGroupName": "mygroup",
        "CacheParameterGroupFamily": "redis5.0",
        "Description": "my group"
    }
}

Per ulteriori informazioni, consulta Creazione di un gruppo di parametri nella Guida per l’utente di ElastiCache.

Come creare un gruppo di sottoreti della cache

L’esempio create-cache-subnet-group seguente crea un nuovo gruppo di sottoreti della cache.

aws elasticache create-cache-subnet-group \
    --cache-subnet-group-name "mygroup" \
    --cache-subnet-group-description "my subnet group" \
    --subnet-ids "subnet-xxxxec4f"

Output:

{
    "CacheSubnetGroup": {
        "CacheSubnetGroupName": "mygroup",
        "CacheSubnetGroupDescription": "my subnet group",
        "VpcId": "vpc-a3e97cdb",
        "Subnets": [
            {
                "SubnetIdentifier": "subnet-xxxxec4f",
                "SubnetAvailabilityZone": {
                    "Name": "us-west-2d"
                }
            }
        ]
    }
}

Per ulteriori informazioni, consulta Creazione di un gruppo di sottoreti della cache nella Guida per l’utente di ElastiCache.

Come creare un gruppo di replica globale

L’esempio create-global-replication-group seguente crea un’attività di replica.

aws elasticache create-global-replication-group \
    --global-replication-group-id-suffix my-global-replication-group \
    --primary-replication-group-id my-primary-cluster

Output:

{
    "GlobalReplicationGroup": {
        "GlobalReplicationGroupId": "sgaui-my-global-replication-group",
        "GlobalReplicationGroupDescription": " ",
        "Status": "creating",
        "CacheNodeType": "cache.r5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.6",
        "Members": [
            {
                "ReplicationGroupId": "my-primary-cluster",
                "ReplicationGroupRegion": "us-west-2",
                "Role": "PRIMARY",
                "AutomaticFailover": "enabled",
                "Status": "associating"
            }
        ],
        "ClusterEnabled": true,
        "GlobalNodeGroups": [
            {
                "GlobalNodeGroupId": "sgaui-my-global-replication-group-0001",
                "Slots": "0-16383"
            }
        ],
        "AuthTokenEnabled": false,
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Replica tra AWS regioni utilizzando Global Datastore nella Guida per l'utente di Elasticache.

Come creare un gruppo di replica

L’esempio create-replication-group seguente crea un gruppo di replica Redis (modalità cluster disabilitata) o Redis (modalità cluster abilitata). Questa operazione è valida solo per Redis.

aws elasticache create-replication-group \
    --replication-group-id "mygroup" \
    --replication-group-description "my group" \
    --engine "redis" \
    --cache-node-type "cache.m5.large"

Output:

{
    "ReplicationGroup": {
        "ReplicationGroupId": "mygroup",
        "Description": "my group",
        "Status": "creating",
        "PendingModifiedValues": {},
        "MemberClusters": [
            "mygroup-001"
        ],
        "AutomaticFailover": "disabled",
        "SnapshotRetentionLimit": 0,
        "SnapshotWindow": "06:00-07:00",
        "ClusterEnabled": false,
        "CacheNodeType": "cache.m5.large",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Creazione di un gruppo di replica Redis nella Guida per l’utente di ElastiCache.

Come creare uno snapshot

L’esempio create-snapshot seguente crea uno snapshot utilizzando il motore Redis.

aws elasticache create-snapshot \
    --snapshot-name mysnapshot \
    --cache-cluster-id cluster-test

Output:

{
    "Snapshot": {
        "SnapshotName": "mysnapshot",
        "CacheClusterId": "cluster-test",
        "SnapshotStatus": "creating",
        "SnapshotSource": "manual",
        "CacheNodeType": "cache.m5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.5",
        "NumCacheNodes": 1,
        "PreferredAvailabilityZone": "us-west-2b",
        "CacheClusterCreateTime": "2020-03-19T03:12:01.483Z",
        "PreferredMaintenanceWindow": "sat:13:00-sat:14:00",
        "Port": 6379,
        "CacheParameterGroupName": "default.redis5.0",
        "CacheSubnetGroupName": "default",
        "VpcId": "vpc-a3e97cdb",
        "AutoMinorVersionUpgrade": true,
        "SnapshotRetentionLimit": 0,
        "SnapshotWindow": "06:30-07:30",
        "NodeSnapshots": [
            {
                "CacheNodeId": "0001",
                "CacheSize": "",
                "CacheNodeCreateTime": "2020-03-19T03:12:01.483Z"
            }
        ]
    }
}

Per ulteriori informazioni, consulta Backup and Restore ElastiCache for Redis nella Guida per l'utente di Elasticache.

Come creare un gruppo di utenti

L’esempio create-user-group seguente crea un’attività di replica.

aws elasticache create-user-group \
    --user-group-id myusergroup \
    --engine redis \
    --user-ids default

Output:

{
    "UserGroupId": "myusergroup",
    "Status": "creating",
    "Engine": "redis",
    "UserIds": [
        "default"
    ],
    "ReplicationGroups": [],
    "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:usergroup:myusergroup"
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Come creare un utente

L’esempio create-user seguente crea un’attività di replica.

aws elasticache create-user \
    --user-id user1 \
    --user-name myUser \
    --passwords mYnuUzrpAxXw2rdzx \
    --engine redis \
    --access-string "on ~app::* -@all +@read"

Output:

{
    "UserId": "user2",
    "UserName": "myUser",
    "Status": "active",
    "Engine": "redis",
    "AccessString": "on ~app::* -@all +@read +@hash +@bitmap +@geo -setbit -bitfield -hset -hsetnx -hmset -hincrby -hincrbyfloat -hdel -bitop -geoadd -georadius -georadiusbymember",
    "UserGroupIds": [],
    "Authentication": {
        "Type": "password",
        "PasswordCount": 1
    },
    "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:user:user2"
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Come ridurre il numero dei gruppi di nodi in un gruppo di replica globale

Il comando decrease-node-groups-in-global-replication-group seguente riduce il numero dei gruppi di nodi utilizzando il motore Redis.

aws elasticache decrease-node-groups-in-global-replication-group \
    --global-replication-group-id sgaui-test \
    --node-group-count 1 \
    --apply-immediately \
    --global-node-groups-to-retain sgaui-test-0003

Output:

{
    "GlobalReplicationGroup":
    {
        "GlobalReplicationGroupId": "sgaui-test",
        "GlobalReplicationGroupDescription": "test",
        "Status": "modifying",
        "CacheNodeType": "cache.r5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.6",
        "Members": [
            {
                "ReplicationGroupId": "test-2",
                "ReplicationGroupRegion": "us-east-1",
                "Role": "SECONDARY",
                "AutomaticFailover": "enabled",
                "Status": "associated"
            },
            {
                "ReplicationGroupId": "test-1",
                "ReplicationGroupRegion": "us-west-2",
                "Role": "PRIMARY",
                "AutomaticFailover": "enabled",
                "Status": "associated"
            }
        ],
        "ClusterEnabled": true,
        "GlobalNodeGroups": [
            {
                "GlobalNodeGroupId": "sgaui-test-0001",
                "Slots": "0-449,1816-5461"
            },
            {
                "GlobalNodeGroupId": "sgaui-test-0002",
                "Slots": "6827-10922"
            },
            {
                "GlobalNodeGroupId": "sgaui-test-0003",
                "Slots": "10923-14052,15418-16383"
            },
            {
                "GlobalNodeGroupId": "sgaui-test-0004",
                "Slots": "450-1815,5462-6826,14053-15417"
            }
        ],
        "AuthTokenEnabled": false,
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Replica tra AWS regioni utilizzando Global Datastore nella Guida per l'utente di Elasticache.

Come ridurre il numero di repliche

L’esempio decrease-replica-count seguente riduce dinamicamente il numero di repliche in un gruppo di replica Redis (modalità cluster disabilitata) o il numero di nodi di replica in uno o più gruppi di nodi (shard) di un gruppo di replica Redis (modalità cluster abilitata). Questa operazione viene eseguita senza causare alcun tempo di inattività del cluster.

aws elasticache decrease-replica-count \
    --replication-group-id my-cluster \
    --apply-immediately  \
    --new-replica-count 2

Output:

{
    "ReplicationGroup": {
        "ReplicationGroupId": "my-cluster",
        "Description": " ",
        "Status": "modifying",
        "PendingModifiedValues": {},
        "MemberClusters": [
            "myrepliace",
            "my-cluster-001",
            "my-cluster-002",
            "my-cluster-003"
        ],
        "NodeGroups": [
            {
                "NodeGroupId": "0001",
                "Status": "modifying",
                "PrimaryEndpoint": {
                    "Address": "my-cluster.xxxxx.ng.0001.usw2.cache.amazonaws.com",
                    "Port": 6379
                },
                "ReaderEndpoint": {
                    "Address": "my-cluster-ro.xxxxx.ng.0001.usw2.cache.amazonaws.com",
                    "Port": 6379
                },
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "myrepliace",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "myrepliace.xxxxx.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2a",
                        "CurrentRole": "replica"
                    },
                    {
                        "CacheClusterId": "my-cluster-001",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "my-cluster-001.xxxxx.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2a",
                        "CurrentRole": "primary"
                    },
                    {
                        "CacheClusterId": "my-cluster-002",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "my-cluster-002.xxxxx.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2a",
                        "CurrentRole": "replica"
                    },
                    {
                        "CacheClusterId": "my-cluster-003",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "my-cluster-003.xxxxx.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2a",
                        "CurrentRole": "replica"
                    }
                ]
            }
        ],
        "AutomaticFailover": "disabled",
        "SnapshotRetentionLimit": 0,
        "SnapshotWindow": "07:30-08:30",
        "ClusterEnabled": false,
        "CacheNodeType": "cache.r5.xlarge",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Modifica del numero di repliche nella Guida per l’utente di ElastiCache.

Come eliminare un cluster di cache

L’esempio delete-cache-cluster seguente elimina il cluster DAX specificato. Il comando elimina tutti i nodi di cache associati, gli endpoint dei nodi e il cluster stesso. Quando ricevi una risposta corretta da questa operazione, Amazon inizia ElastiCache immediatamente a eliminare il cluster; non puoi annullare o annullare questa operazione.

Questa operazione non è valida per quanto segue:

Cluster Redis (modalità cluster abilitata); un cluster che costituisce l’ultima replica di lettura di un gruppo di replica; un gruppo di nodi (shard) con modalità Multi-AZ abilitata; un cluster di un gruppo di replica Redis (modalità cluster abilitata); un cluster con stato non disponibile

aws elasticache delete-cache-cluster \
    --cache-cluster-id "my-cluster-002"

Output:

{
    "CacheCluster": {
        "CacheClusterId": "my-cluster-002",
        "ClientDownloadLandingPage": "https://console.aws.amazon.com/elasticache/home#client-download:",
        "CacheNodeType": "cache.r5.xlarge",
        "Engine": "redis",
        "EngineVersion": "5.0.5",
        "CacheClusterStatus": "deleting",
        "NumCacheNodes": 1,
        "PreferredAvailabilityZone": "us-west-2a",
        "CacheClusterCreateTime": "2019-11-26T03:35:04.546Z",
        "PreferredMaintenanceWindow": "mon:04:05-mon:05:05",
        "PendingModifiedValues": {},
        "NotificationConfiguration": {
            "TopicArn": "arn:aws:sns:us-west-x:xxxxxxx4152:My_Topic",
            "TopicStatus": "active"
        },
        "CacheSecurityGroups": [],
        "CacheParameterGroup": {
            "CacheParameterGroupName": "mygroup",
            "ParameterApplyStatus": "in-sync",
            "CacheNodeIdsToReboot": []
        },
        "CacheSubnetGroupName": "kxkxk",
        "AutoMinorVersionUpgrade": true,
        "SecurityGroups": [
            {
                "SecurityGroupId": "sg-xxxxxxxxxx9836",
                "Status": "active"
            },
            {
                "SecurityGroupId": "sg-xxxxxxxxxxxx7b",
                "Status": "active"
            }
        ],
        "ReplicationGroupId": "my-cluster",
        "SnapshotRetentionLimit": 0,
        "SnapshotWindow": "07:30-08:30",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Eliminazione di un cluster nella Guida per l’utente di ElastiCache.

Come eliminare un gruppo di parametri cache

L’esempio delete-cache-parameter-group seguente elimina il gruppo di parametri cache specificato. Un gruppo di parametri cache non può essere eliminato se è associato a cluster di cache.

aws elasticache delete-cache-parameter-group \
    --cache-parameter-group-name myparamgroup

Questo comando non produce alcun output.

Per ulteriori informazioni, consulta Eliminazione di un gruppo di parametri nella Guida per l’utente di ElastiCache.

Come eliminare un gruppo di sottoreti della cache

L’esempio delete-cache-subnet-group seguente elimina il gruppo di sottoreti della cache specificato. Un gruppo di sottoreti della cache non può essere eliminato se è associato a cluster di cache.

aws elasticache delete-cache-subnet-group \
    --cache-subnet-group-name "mygroup"

Questo comando non produce alcun output.

Per ulteriori informazioni, consulta Eliminazione di un gruppo di sottoreti nella Guida per l’utente di ElastiCache.

Come eliminare un gruppo di replica globale

L’esempio delete-global-replication-group seguente crea un’attività di replica.

aws elasticache delete-global-replication-group \
    --global-replication-group-id my-global-replication-group \
    --retain-primary-replication-group

Output:

{
    "GlobalReplicationGroup": {
        "GlobalReplicationGroupId": "sgaui-my-grg",
        "GlobalReplicationGroupDescription": "my-grg",
        "Status": "deleting",
        "CacheNodeType": "cache.r5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.6",
        "Members": [
            {
                "ReplicationGroupId": "my-cluster-grg",
                "ReplicationGroupRegion": "us-west-2",
                "Role": "PRIMARY",
                "AutomaticFailover": "enabled",
                "Status": "associated"
            }
        ],
        "ClusterEnabled": false,
        "AuthTokenEnabled": false,
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Replica tra AWS regioni utilizzando Global Datastore nella Guida per l'utente di Elasticache.

Come eliminare un gruppo di replica

L’esempio delete-replication-group seguente elimina un gruppo di replica esistente. Per impostazione predefinita, questa operazione elimina l'intero gruppo di replica, incluse tutte le primary/primaries repliche lette. Se il gruppo di replica ha un solo primario, è possibile eliminare facoltativamente solo le repliche di lettura, mantenendo la principale impostando =true. RetainPrimaryCluster

Quando ricevi una risposta corretta da questa operazione, Amazon inizia ElastiCache immediatamente a eliminare le risorse selezionate; non puoi annullare o annullare questa operazione. Operazione valida solo per Redis.

aws elasticache delete-replication-group \
    --replication-group-id "mygroup"

Output:

{
     "ReplicationGroup": {
         "ReplicationGroupId": "mygroup",
         "Description": "my group",
         "Status": "deleting",
         "PendingModifiedValues": {},
         "AutomaticFailover": "disabled",
         "SnapshotRetentionLimit": 0,
         "SnapshotWindow": "06:00-07:00",
         "TransitEncryptionEnabled": false,
         "AtRestEncryptionEnabled": false
     }
 }

Come eliminare uno snapshot

L’esempio delete-snapshot seguente elimina uno snapshot utilizzando il motore Redis.

aws elasticache delete-snapshot \
    --snapshot-name mysnapshot

Output:

{
    "Snapshot": {
        "SnapshotName": "my-cluster-snapshot",
        "ReplicationGroupId": "mycluster",
        "ReplicationGroupDescription": "mycluster",
        "SnapshotStatus": "deleting",
        "SnapshotSource": "manual",
        "CacheNodeType": "cache.r5.xlarge",
        "Engine": "redis",
        "EngineVersion": "5.0.5",
        "PreferredMaintenanceWindow": "thu:12:00-thu:13:00",
        "TopicArn": "arn:aws:sns:us-west-2:xxxxxxxxxxxxx152:My_Topic",
        "Port": 6379,
        "CacheParameterGroupName": "default.redis5.0.cluster.on",
        "CacheSubnetGroupName": "default",
        "VpcId": "vpc-a3e97cdb",
        "AutoMinorVersionUpgrade": true,
        "SnapshotRetentionLimit": 1,
        "SnapshotWindow": "13:00-14:00",
        "NumNodeGroups": 4,
        "AutomaticFailover": "enabled",
        "NodeSnapshots": [
            {
                "CacheClusterId": "mycluster-0002-003",
                "NodeGroupId": "0002",
                "CacheNodeId": "0001",
                "CacheSize": "6 MB",
                "CacheNodeCreateTime": "2020-06-18T00:05:44.719000+00:00",
                "SnapshotCreateTime": "2020-06-25T20:34:30+00:00"
            },
            {
                "CacheClusterId": "mycluster-0003-003",
                "NodeGroupId": "0003",
                "CacheNodeId": "0001",
                "CacheSize": "6 MB",
                "CacheNodeCreateTime": "2019-12-05T19:13:15.912000+00:00",
                "SnapshotCreateTime": "2020-06-25T20:34:30+00:00"
            },
            {
                "CacheClusterId": "mycluster-0004-002",
                "NodeGroupId": "0004",
                "CacheNodeId": "0001",
                "CacheSize": "6 MB",
                "CacheNodeCreateTime": "2019-12-09T19:44:34.324000+00:00",
                "SnapshotCreateTime": "2020-06-25T20:34:30+00:00"
            },
            {
                "CacheClusterId": "mycluster-0005-003",
                "NodeGroupId": "0005",
                "CacheNodeId": "0001",
                "CacheSize": "6 MB",
                "CacheNodeCreateTime": "2020-06-18T00:05:44.775000+00:00",
                "SnapshotCreateTime": "2020-06-25T20:34:30+00:00"
            }
        ]
    }
}

Per ulteriori informazioni, consulta Backup and Restore ElastiCache for Redis nella Guida per l'utente di Elasticache.

Come eliminare un gruppo di utenti

L’esempio delete-user-group seguente elimina un sink.

aws elasticache delete-user-group \
    --user-group-id myusergroup

Output:

{
    "UserGroupId": "myusergroup",
    "Status": "deleting",
    "Engine": "redis",
    "UserIds": [
        "default"
    ],
    "ReplicationGroups": [],
    "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:usergroup:myusergroup"
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Come eliminare un utente

L’esempio delete-user seguente elimina un sink.

aws elasticache delete-user \
    --user-id user2

Output:

{
    "UserId": "user1",
    "UserName": "myUser",
    "Status": "deleting",
    "Engine": "redis",
    "AccessString": "on ~* +@all",
    "UserGroupIds": [
        "myusergroup"
    ],
    "Authentication": {
        "Type": "password",
        "PasswordCount": 1
    },
    "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:user:user1"
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Come descrivere un cluster di cache

L’esempio describe-cache-clusters seguente descrive un cluster di cache.

aws elasticache describe-cache-clusters

Output:

{
    "CacheClusters": [
    {
            "CacheClusterId": "my-cluster-003",
            "ClientDownloadLandingPage": "https://console.aws.amazon.com/elasticache/home#client-download:",
            "CacheNodeType": "cache.r5.large",
            "Engine": "redis",
            "EngineVersion": "5.0.5",
            "CacheClusterStatus": "available",
            "NumCacheNodes": 1,
            "PreferredAvailabilityZone": "us-west-2a",
            "CacheClusterCreateTime": "2019-11-26T01:22:52.396Z",
            "PreferredMaintenanceWindow": "mon:17:30-mon:18:30",
            "PendingModifiedValues": {},
            "NotificationConfiguration": {
                "TopicArn": "arn:aws:sns:us-west-2:xxxxxxxxxxx152:My_Topic",
                "TopicStatus": "active"
            },
            "CacheSecurityGroups": [],
            "CacheParameterGroup": {
                "CacheParameterGroupName": "default.redis5.0",
                "ParameterApplyStatus": "in-sync",
                "CacheNodeIdsToReboot": []
            },
            "CacheSubnetGroupName": "kxkxk",
            "AutoMinorVersionUpgrade": true,
            "SecurityGroups": [
                {
                    "SecurityGroupId": "sg-xxxxxd7b",
                    "Status": "active"
                }
            ],
            "ReplicationGroupId": "my-cluster",
            "SnapshotRetentionLimit": 0,
            "SnapshotWindow": "06:30-07:30",
            "AuthTokenEnabled": false,
            "TransitEncryptionEnabled": false,
            "AtRestEncryptionEnabled": false,
            "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxxx152:cluster:my-cache-cluster",
            "ReplicationGroupLogDeliveryEnabled": false,
            "LogDeliveryConfigurations": [
                {
                    "LogType": "slow-log",
                    "DestinationType": "cloudwatch-logs",
                    "DestinationDetails": {
                        "CloudWatchLogsDetails": {
                            "LogGroup": "test-log"
                        }
                    },
                    "LogFormat": "text",
                    "Status": "active"
                }
            ]
        }
    ]
}

Per ulteriori informazioni, consulta Gestione dei cluster nella Guida per l’utente di ElastiCache.

Come descrivere la versione di un motore di cache

L’esempio describe-cache-engine-versions seguente restituisce un elenco dei motori di cache disponibili con le relative versioni.

aws elasticache describe-cache-engine-versions \
    --engine "Redis"

Output:

{
    "CacheEngineVersions": [
        {
            "Engine": "redis",
            "EngineVersion": "2.6.13",
            "CacheParameterGroupFamily": "redis2.6",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 2.6.13"
        },
        {
            "Engine": "redis",
            "EngineVersion": "2.8.19",
            "CacheParameterGroupFamily": "redis2.8",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 2.8.19"
        },
        {
            "Engine": "redis",
            "EngineVersion": "2.8.21",
            "CacheParameterGroupFamily": "redis2.8",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 2.8.21"
        },
        {
            "Engine": "redis",
            "EngineVersion": "2.8.22",
            "CacheParameterGroupFamily": "redis2.8",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 2.8.22"
        },
        {
            "Engine": "redis",
            "EngineVersion": "2.8.23",
            "CacheParameterGroupFamily": "redis2.8",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 2.8.23"
        },
        {
            "Engine": "redis",
            "EngineVersion": "2.8.24",
            "CacheParameterGroupFamily": "redis2.8",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 2.8.24"
        },
        {
            "Engine": "redis",
            "EngineVersion": "2.8.6",
            "CacheParameterGroupFamily": "redis2.8",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 2.8.6"
        },
        {
            "Engine": "redis",
            "EngineVersion": "3.2.10",
            "CacheParameterGroupFamily": "redis3.2",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 3.2.10"
        },
        {
            "Engine": "redis",
            "EngineVersion": "3.2.4",
            "CacheParameterGroupFamily": "redis3.2",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 3.2.4"
        },
        {
            "Engine": "redis",
            "EngineVersion": "3.2.6",
            "CacheParameterGroupFamily": "redis3.2",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 3.2.6"
        },
        {
            "Engine": "redis",
            "EngineVersion": "4.0.10",
            "CacheParameterGroupFamily": "redis4.0",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 4.0.10"
        },
        {
            "Engine": "redis",
            "EngineVersion": "5.0.0",
            "CacheParameterGroupFamily": "redis5.0",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 5.0.0"
        },
        {
            "Engine": "redis",
            "EngineVersion": "5.0.3",
            "CacheParameterGroupFamily": "redis5.0",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 5.0.3"
        },
        {
            "Engine": "redis",
            "EngineVersion": "5.0.4",
            "CacheParameterGroupFamily": "redis5.0",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 5.0.4"
        },
        {
            "Engine": "redis",
            "EngineVersion": "5.0.5",
            "CacheParameterGroupFamily": "redis5.0",
            "CacheEngineDescription": "Redis",
            "CacheEngineVersionDescription": "redis version 5.0.5"
        }
    ]
}

Come descrivere un gruppo di parametri cache

L’esempio describe-cache-parameter-groups seguente restituisce un elenco di descrizioni del gruppo di parametri cache.

aws elasticache describe-cache-parameter-groups \
    --cache-parameter-group-name "mygroup"

Output:

{
    "CacheParameterGroups": [
        {
            "CacheParameterGroupName": "mygroup",
            "CacheParameterGroupFamily": "redis5.0",
            "Description": " "
        }
    ]
}

Per ulteriori informazioni, consulta Configurazione dei parametri di motore con i gruppi di parametri nella Guida per l’utente di ElastiCache.

Come descrivere i parametri cache

Il seguente esempio "describe-cache-parameters" restituisce l'elenco dettagliato dei parametri per il gruppo di parametri di cache specificato.

aws elasticache describe-cache-parameters \
    --cache-parameter-group-name "myparamgroup"

Output:

{
    "Parameters": [
        {
            "ParameterName": "activedefrag",
            "ParameterValue": "yes",
            "Description": "Enabled active memory defragmentation",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "active-defrag-cycle-max",
            "ParameterValue": "75",
            "Description": "Maximal effort for defrag in CPU percentage",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-75",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "active-defrag-cycle-min",
            "ParameterValue": "5",
            "Description": "Minimal effort for defrag in CPU percentage",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-75",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "active-defrag-ignore-bytes",
            "ParameterValue": "104857600",
            "Description": "Minimum amount of fragmentation waste to start active defrag",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1048576-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "active-defrag-max-scan-fields",
            "ParameterValue": "1000",
            "Description": "Maximum number of set/hash/zset/list fields that will be processed from the main dictionary scan",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-1000000",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "active-defrag-threshold-lower",
            "ParameterValue": "10",
            "Description": "Minimum percentage of fragmentation to start active defrag",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-100",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "active-defrag-threshold-upper",
            "ParameterValue": "100",
            "Description": "Maximum percentage of fragmentation at which we use maximum effort",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-100",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "activerehashing",
            "ParameterValue": "yes",
            "Description": "Apply rehashing or not.",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "requires-reboot"
        },
        {
            "ParameterName": "appendfsync",
            "ParameterValue": "everysec",
            "Description": "fsync policy for AOF persistence",
            "Source": "system",
            "DataType": "string",
            "AllowedValues": "always,everysec,no",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "appendonly",
            "ParameterValue": "no",
            "Description": "Enable Redis persistence.",
            "Source": "system",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-output-buffer-limit-normal-hard-limit",
            "ParameterValue": "0",
            "Description": "Normal client output buffer hard limit in bytes.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-output-buffer-limit-normal-soft-limit",
            "ParameterValue": "0",
            "Description": "Normal client output buffer soft limit in bytes.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-output-buffer-limit-normal-soft-seconds",
            "ParameterValue": "0",
            "Description": "Normal client output buffer soft limit in seconds.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-output-buffer-limit-pubsub-hard-limit",
            "ParameterValue": "33554432",
            "Description": "Pubsub client output buffer hard limit in bytes.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-output-buffer-limit-pubsub-soft-limit",
            "ParameterValue": "8388608",
            "Description": "Pubsub client output buffer soft limit in bytes.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-output-buffer-limit-pubsub-soft-seconds",
            "ParameterValue": "60",
            "Description": "Pubsub client output buffer soft limit in seconds.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-output-buffer-limit-replica-soft-seconds",
            "ParameterValue": "60",
            "Description": "Replica client output buffer soft limit in seconds.",
            "Source": "system",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "client-query-buffer-limit",
            "ParameterValue": "1073741824",
            "Description": "Max size of a single client query buffer",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1048576-1073741824",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "close-on-replica-write",
            "ParameterValue": "yes",
            "Description": "If enabled, clients who attempt to write to a read-only replica will be disconnected. Applicable to 2.8.23 and higher.",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "cluster-enabled",
            "ParameterValue": "no",
            "Description": "Enable cluster mode",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "requires-reboot"
        },
        {
            "ParameterName": "cluster-require-full-coverage",
            "ParameterValue": "no",
            "Description": "Whether cluster becomes unavailable if one or more slots are not covered",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "databases",
            "ParameterValue": "16",
            "Description": "Set the number of databases.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-1200000",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "requires-reboot"
        },
        {
            "ParameterName": "hash-max-ziplist-entries",
            "ParameterValue": "512",
            "Description": "The maximum number of hash entries in order for the dataset to be compressed.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "hash-max-ziplist-value",
            "ParameterValue": "64",
            "Description": "The threshold of biggest hash entries in order for the dataset to be compressed.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "hll-sparse-max-bytes",
            "ParameterValue": "3000",
            "Description": "HyperLogLog sparse representation bytes limit",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-16000",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "lazyfree-lazy-eviction",
            "ParameterValue": "no",
            "Description": "Perform an asynchronous delete on evictions",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "lazyfree-lazy-expire",
            "ParameterValue": "no",
            "Description": "Perform an asynchronous delete on expired keys",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "lazyfree-lazy-server-del",
            "ParameterValue": "no",
            "Description": "Perform an asynchronous delete on key updates",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "lfu-decay-time",
            "ParameterValue": "1",
            "Description": "The amount of time in minutes to decrement the key counter for LFU eviction policy",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "lfu-log-factor",
            "ParameterValue": "10",
            "Description": "The log factor for incrementing key counter for LFU eviction policy",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "list-compress-depth",
            "ParameterValue": "0",
            "Description": "Number of quicklist ziplist nodes from each side of the list to exclude from compression. The head and tail of the list are always uncompressed for fast push/pop operations",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "list-max-ziplist-size",
            "ParameterValue": "-2",
            "Description": "The number of entries allowed per internal list node can be specified as a fixed maximum size or a maximum number of elements",
            "Source": "system",
            "DataType": "integer",
            "AllowedValues": "-5,-4,-3,-2,-1,1-",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "lua-replicate-commands",
            "ParameterValue": "yes",
            "Description": "Always enable Lua effect replication or not",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "lua-time-limit",
            "ParameterValue": "5000",
            "Description": "Max execution time of a Lua script in milliseconds. 0 for unlimited execution without warnings.",
            "Source": "system",
            "DataType": "integer",
            "AllowedValues": "5000",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "maxclients",
            "ParameterValue": "65000",
            "Description": "The maximum number of Redis clients.",
            "Source": "system",
            "DataType": "integer",
            "AllowedValues": "1-65000",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "requires-reboot"
        },
        {
            "ParameterName": "maxmemory-policy",
            "ParameterValue": "volatile-lru",
            "Description": "Max memory policy.",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "volatile-lru,allkeys-lru,volatile-lfu,allkeys-lfu,volatile-random,allkeys-random,volatile-ttl,noeviction",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "maxmemory-samples",
            "ParameterValue": "3",
            "Description": "Max memory samples.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "min-replicas-max-lag",
            "ParameterValue": "10",
            "Description": "The maximum amount of replica lag in seconds beyond which the master would stop taking writes. A value of 0 means the master always takes writes.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "min-replicas-to-write",
            "ParameterValue": "0",
            "Description": "The minimum number of replicas that must be present with lag no greater than min-replicas-max-lag for master to take writes. Setting this to 0 means the master always takes writes.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "notify-keyspace-events",
            "Description": "The keyspace events for Redis to notify Pub/Sub clients about. By default all notifications are disabled",
            "Source": "user",
            "DataType": "string",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "proto-max-bulk-len",
            "ParameterValue": "536870912",
            "Description": "Max size of a single element request",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "1048576-536870912",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "rename-commands",
            "ParameterValue": "",
            "Description": "Redis commands that can be dynamically renamed by the customer",
            "Source": "user",
            "DataType": "string",
            "AllowedValues": "APPEND,BITCOUNT,BITFIELD,BITOP,BITPOS,BLPOP,BRPOP,BRPOPLPUSH,BZPOPMIN,BZPOPMAX,CLIENT,COMMAND,DBSIZE,DECR,DECRBY,DEL,DISCARD,DUMP,ECHO,EVAL,EVALSHA,EXEC,EXISTS,EXPIRE,EXPIREAT,FLUSHALL,FLUSHDB,GEOADD,GEOHASH,GEOPOS,GEODIST,GEORADIUS,GEORADIUSBYMEMBER,GET,GETBIT,GETRANGE,GETSET,HDEL,HEXISTS,HGET,HGETALL,HINCRBY,HINCRBYFLOAT,HKEYS,HLEN,HMGET,HMSET,HSET,HSETNX,HSTRLEN,HVALS,INCR,INCRBY,INCRBYFLOAT,INFO,KEYS,LASTSAVE,LINDEX,LINSERT,LLEN,LPOP,LPUSH,LPUSHX,LRANGE,LREM,LSET,LTRIM,MEMORY,MGET,MONITOR,MOVE,MSET,MSETNX,MULTI,OBJECT,PERSIST,PEXPIRE,PEXPIREAT,PFADD,PFCOUNT,PFMERGE,PING,PSETEX,PSUBSCRIBE,PUBSUB,PTTL,PUBLISH,PUNSUBSCRIBE,RANDOMKEY,READONLY,READWRITE,RENAME,RENAMENX,RESTORE,ROLE,RPOP,RPOPLPUSH,RPUSH,RPUSHX,SADD,SCARD,SCRIPT,SDIFF,SDIFFSTORE,SELECT,SET,SETBIT,SETEX,SETNX,SETRANGE,SINTER,SINTERSTORE,SISMEMBER,SLOWLOG,SMEMBERS,SMOVE,SORT,SPOP,SRANDMEMBER,SREM,STRLEN,SUBSCRIBE,SUNION,SUNIONSTORE,SWAPDB,TIME,TOUCH,TTL,TYPE,UNSUBSCRIBE,UNLINK,UNWATCH,WAIT,WATCH,ZADD,ZCARD,ZCOUNT,ZINCRBY,ZINTERSTORE,ZLEXCOUNT,ZPOPMAX,ZPOPMIN,ZRANGE,ZRANGEBYLEX,ZREVRANGEBYLEX,ZRANGEBYSCORE,ZRANK,ZREM,ZREMRANGEBYLEX,ZREMRANGEBYRANK,ZREMRANGEBYSCORE,ZREVRANGE,ZREVRANGEBYSCORE,ZREVRANK,ZSCORE,ZUNIONSTORE,SCAN,SSCAN,HSCAN,ZSCAN,XINFO,XADD,XTRIM,XDEL,XRANGE,XREVRANGE,XLEN,XREAD,XGROUP,XREADGROUP,XACK,XCLAIM,XPENDING,GEORADIUS_RO,GEORADIUSBYMEMBER_RO,LOLWUT,XSETID,SUBSTR",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.3",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "repl-backlog-size",
            "ParameterValue": "1048576",
            "Description": "The replication backlog size in bytes for PSYNC. This is the size of the buffer which accumulates slave data when slave is disconnected for some time, so that when slave reconnects again, only transfer the portion of data which the slave missed. Minimum value is 16K.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "16384-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "repl-backlog-ttl",
            "ParameterValue": "3600",
            "Description": "The amount of time in seconds after the master no longer have any slaves connected for the master to free the replication backlog. A value of 0 means to never release the backlog.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "replica-allow-chaining",
            "ParameterValue": "no",
            "Description": "Configures if chaining of replicas is allowed",
            "Source": "system",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "replica-ignore-maxmemory",
            "ParameterValue": "yes",
            "Description": "Determines if replica ignores maxmemory setting by not evicting items independent from the master",
            "Source": "system",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "replica-lazy-flush",
            "ParameterValue": "no",
            "Description": "Perform an asynchronous flushDB during replica sync",
            "Source": "system",
            "DataType": "string",
            "AllowedValues": "yes,no",
            "IsModifiable": false,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "reserved-memory-percent",
            "ParameterValue": "25",
            "Description": "The percent of memory reserved for non-cache memory usage. You may want to increase this parameter for nodes with read replicas, AOF enabled, etc, to reduce swap usage.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-100",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "set-max-intset-entries",
            "ParameterValue": "512",
            "Description": "The limit in the size of the set in order for the dataset to be compressed.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "slowlog-log-slower-than",
            "ParameterValue": "10000",
            "Description": "The execution time, in microseconds, to exceed in order for the command to get logged. Note that a negative number disables the slow log, while a value of zero forces the logging of every command.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "slowlog-max-len",
            "ParameterValue": "128",
            "Description": "The length of the slow log. There is no limit to this length. Just be aware that it will consume memory. You can reclaim memory used by the slow log with SLOWLOG RESET.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "stream-node-max-bytes",
            "ParameterValue": "4096",
            "Description": "The maximum size of a single node in a stream in bytes",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "stream-node-max-entries",
            "ParameterValue": "100",
            "Description": "The maximum number of items a single node in a stream can contain",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "tcp-keepalive",
            "ParameterValue": "300",
            "Description": "If non-zero, send ACKs every given number of seconds.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "timeout",
            "ParameterValue": "0",
            "Description": "Close connection if client is idle for a given number of seconds, or never if 0.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0,20-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "zset-max-ziplist-entries",
            "ParameterValue": "128",
            "Description": "The maximum number of sorted set entries in order for the dataset to be compressed.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        },
        {
            "ParameterName": "zset-max-ziplist-value",
            "ParameterValue": "64",
            "Description": "The threshold of biggest sorted set entries in order for the dataset to be compressed.",
            "Source": "user",
            "DataType": "integer",
            "AllowedValues": "0-",
            "IsModifiable": true,
            "MinimumEngineVersion": "5.0.0",
            "ChangeType": "immediate"
        }
    ]
}

Per ulteriori informazioni, consulta Gestione dei parametri nella Guida per l’utente di ElastiCache.

Come descrivere i gruppi di sottoreti della cache

L’esempio describe-cache-subnet-groups seguente restituisce un elenco di gruppi di sottoreti.

aws elasticache describe-cache-subnet-groups

Output:

{
    "CacheSubnetGroups": [
        {
            "CacheSubnetGroupName": "default",
            "CacheSubnetGroupDescription": "Default CacheSubnetGroup",
            "VpcId": "vpc-a3e97cdb",
            "Subnets": [
                {
                    "SubnetIdentifier": "subnet-8d4bacf5",
                    "SubnetAvailabilityZone": {
                        "Name": "us-west-2b"
                    }
                },
                {
                    "SubnetIdentifier": "subnet-dde21380",
                    "SubnetAvailabilityZone": {
                        "Name": "us-west-2c"
                    }
                },
                {
                    "SubnetIdentifier": "subnet-6485ec4f",
                    "SubnetAvailabilityZone": {
                        "Name": "us-west-2d"
                    }
                },
                {
                    "SubnetIdentifier": "subnet-b4ebebff",
                    "SubnetAvailabilityZone": {
                        "Name": "us-west-2a"
                    }
                }
            ]
        },
        {
            "CacheSubnetGroupName": "kxkxk",
            "CacheSubnetGroupDescription": "mygroup",
            "VpcId": "vpc-a3e97cdb",
            "Subnets": [
                {
                    "SubnetIdentifier": "subnet-b4ebebff",
                    "SubnetAvailabilityZone": {
                        "Name": "us-west-2a"
                    }
                }
            ]
        },
        {
            "CacheSubnetGroupName": "test",
            "CacheSubnetGroupDescription": "test",
            "VpcId": "vpc-a3e97cdb",
            "Subnets": [
                {
                    "SubnetIdentifier": "subnet-b4ebebff",
                    "SubnetAvailabilityZone": {
                        "Name": "us-west-2a"
                    }
                }
            ]
        }
    ]
}

Per ulteriori informazioni, consulta Subnet and Subnet Groups nella Elasticache User Guide o Subnet and Subnet Groups nella for Memcached User Guide. ElastiCache

Come descrivere i parametri predefiniti del motore

L’esempio describe-engine-default-parameters seguente restituisce le informazioni sui parametri predefiniti del motore e del sistema per il motore di cache specificato.

aws elasticache describe-engine-default-parameters \
    --cache-parameter-group-family "redis5.0"

Output:

{
    "EngineDefaults": {
        "Parameters": [
            {
                "ParameterName": "activedefrag",
                "ParameterValue": "no",
                "Description": "Enabled active memory defragmentation",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "active-defrag-cycle-max",
                "ParameterValue": "75",
                "Description": "Maximal effort for defrag in CPU percentage",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-75",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "active-defrag-cycle-min",
                "ParameterValue": "5",
                "Description": "Minimal effort for defrag in CPU percentage",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-75",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "active-defrag-ignore-bytes",
                "ParameterValue": "104857600",
                "Description": "Minimum amount of fragmentation waste to start active defrag",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1048576-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "active-defrag-max-scan-fields",
                "ParameterValue": "1000",
                "Description": "Maximum number of set/hash/zset/list fields that will be processed from the main dictionary scan",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-1000000",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "active-defrag-threshold-lower",
                "ParameterValue": "10",
                "Description": "Minimum percentage of fragmentation to start active defrag",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-100",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "active-defrag-threshold-upper",
                "ParameterValue": "100",
                "Description": "Maximum percentage of fragmentation at which we use maximum effort",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-100",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "activerehashing",
                "ParameterValue": "yes",
                "Description": "Apply rehashing or not.",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "requires-reboot"
            },
            {
                "ParameterName": "appendfsync",
                "ParameterValue": "everysec",
                "Description": "fsync policy for AOF persistence",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "always,everysec,no",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "appendonly",
                "ParameterValue": "no",
                "Description": "Enable Redis persistence.",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-output-buffer-limit-normal-hard-limit",
                "ParameterValue": "0",
                "Description": "Normal client output buffer hard limit in bytes.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-output-buffer-limit-normal-soft-limit",
                "ParameterValue": "0",
                "Description": "Normal client output buffer soft limit in bytes.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-output-buffer-limit-normal-soft-seconds",
                "ParameterValue": "0",
                "Description": "Normal client output buffer soft limit in seconds.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-output-buffer-limit-pubsub-hard-limit",
                "ParameterValue": "33554432",
                "Description": "Pubsub client output buffer hard limit in bytes.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-output-buffer-limit-pubsub-soft-limit",
                "ParameterValue": "8388608",
                "Description": "Pubsub client output buffer soft limit in bytes.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-output-buffer-limit-pubsub-soft-seconds",
                "ParameterValue": "60",
                "Description": "Pubsub client output buffer soft limit in seconds.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-output-buffer-limit-replica-soft-seconds",
                "ParameterValue": "60",
                "Description": "Replica client output buffer soft limit in seconds.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "client-query-buffer-limit",
                "ParameterValue": "1073741824",
                "Description": "Max size of a single client query buffer",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1048576-1073741824",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "close-on-replica-write",
                "ParameterValue": "yes",
                "Description": "If enabled, clients who attempt to write to a read-only replica will be disconnected. Applicable to 2.8.23 and higher.",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "cluster-enabled",
                "ParameterValue": "no",
                "Description": "Enable cluster mode",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "requires-reboot"
            },
            {
                "ParameterName": "cluster-require-full-coverage",
                "ParameterValue": "no",
                "Description": "Whether cluster becomes unavailable if one or more slots are not covered",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "databases",
                "ParameterValue": "16",
                "Description": "Set the number of databases.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-1200000",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "requires-reboot"
            },
            {
                "ParameterName": "hash-max-ziplist-entries",
                "ParameterValue": "512",
                "Description": "The maximum number of hash entries in order for the dataset to be compressed.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "hash-max-ziplist-value",
                "ParameterValue": "64",
                "Description": "The threshold of biggest hash entries in order for the dataset to be compressed.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "hll-sparse-max-bytes",
                "ParameterValue": "3000",
                "Description": "HyperLogLog sparse representation bytes limit",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-16000",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "lazyfree-lazy-eviction",
                "ParameterValue": "no",
                "Description": "Perform an asynchronous delete on evictions",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "lazyfree-lazy-expire",
                "ParameterValue": "no",
                "Description": "Perform an asynchronous delete on expired keys",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "lazyfree-lazy-server-del",
                "ParameterValue": "no",
                "Description": "Perform an asynchronous delete on key updates",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "lfu-decay-time",
                "ParameterValue": "1",
                "Description": "The amount of time in minutes to decrement the key counter for LFU eviction policy",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "lfu-log-factor",
                "ParameterValue": "10",
                "Description": "The log factor for incrementing key counter for LFU eviction policy",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "list-compress-depth",
                "ParameterValue": "0",
                "Description": "Number of quicklist ziplist nodes from each side of the list to exclude from compression. The head and tail of the list are always uncompressed for fast push/pop operations",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "list-max-ziplist-size",
                "ParameterValue": "-2",
                "Description": "The number of entries allowed per internal list node can be specified as a fixed maximum size or a maximum number of elements",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "-5,-4,-3,-2,-1,1-",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "lua-replicate-commands",
                "ParameterValue": "yes",
                "Description": "Always enable Lua effect replication or not",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "lua-time-limit",
                "ParameterValue": "5000",
                "Description": "Max execution time of a Lua script in milliseconds. 0 for unlimited execution without warnings.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "5000",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "maxclients",
                "ParameterValue": "65000",
                "Description": "The maximum number of Redis clients.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-65000",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "requires-reboot"
            },
            {
                "ParameterName": "maxmemory-policy",
                "ParameterValue": "volatile-lru",
                "Description": "Max memory policy.",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "volatile-lru,allkeys-lru,volatile-lfu,allkeys-lfu,volatile-random,allkeys-random,volatile-ttl,noeviction",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "maxmemory-samples",
                "ParameterValue": "3",
                "Description": "Max memory samples.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "min-replicas-max-lag",
                "ParameterValue": "10",
                "Description": "The maximum amount of replica lag in seconds beyond which the master would stop taking writes. A value of 0 means the master always takes writes.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "min-replicas-to-write",
                "ParameterValue": "0",
                "Description": "The minimum number of replicas that must be present with lag no greater than min-replicas-max-lag for master to take writes. Setting this to 0 means the master always takes writes.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "notify-keyspace-events",
                "Description": "The keyspace events for Redis to notify Pub/Sub clients about. By default all notifications are disabled",
                "Source": "system",
                "DataType": "string",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "proto-max-bulk-len",
                "ParameterValue": "536870912",
                "Description": "Max size of a single element request",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "1048576-536870912",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "rename-commands",
                "ParameterValue": "",
                "Description": "Redis commands that can be dynamically renamed by the customer",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "APPEND,BITCOUNT,BITFIELD,BITOP,BITPOS,BLPOP,BRPOP,BRPOPLPUSH,BZPOPMIN,BZPOPMAX,CLIENT,COMMAND,DBSIZE,DECR,DECRBY,DEL,DISCARD,DUMP,ECHO,EVAL,EVALSHA,EXEC,EXISTS,EXPIRE,EXPIREAT,FLUSHALL,FLUSHDB,GEOADD,GEOHASH,GEOPOS,GEODIST,GEORADIUS,GEORADIUSBYMEMBER,GET,GETBIT,GETRANGE,GETSET,HDEL,HEXISTS,HGET,HGETALL,HINCRBY,HINCRBYFLOAT,HKEYS,HLEN,HMGET,HMSET,HSET,HSETNX,HSTRLEN,HVALS,INCR,INCRBY,INCRBYFLOAT,INFO,KEYS,LASTSAVE,LINDEX,LINSERT,LLEN,LPOP,LPUSH,LPUSHX,LRANGE,LREM,LSET,LTRIM,MEMORY,MGET,MONITOR,MOVE,MSET,MSETNX,MULTI,OBJECT,PERSIST,PEXPIRE,PEXPIREAT,PFADD,PFCOUNT,PFMERGE,PING,PSETEX,PSUBSCRIBE,PUBSUB,PTTL,PUBLISH,PUNSUBSCRIBE,RANDOMKEY,READONLY,READWRITE,RENAME,RENAMENX,RESTORE,ROLE,RPOP,RPOPLPUSH,RPUSH,RPUSHX,SADD,SCARD,SCRIPT,SDIFF,SDIFFSTORE,SELECT,SET,SETBIT,SETEX,SETNX,SETRANGE,SINTER,SINTERSTORE,SISMEMBER,SLOWLOG,SMEMBERS,SMOVE,SORT,SPOP,SRANDMEMBER,SREM,STRLEN,SUBSCRIBE,SUNION,SUNIONSTORE,SWAPDB,TIME,TOUCH,TTL,TYPE,UNSUBSCRIBE,UNLINK,UNWATCH,WAIT,WATCH,ZADD,ZCARD,ZCOUNT,ZINCRBY,ZINTERSTORE,ZLEXCOUNT,ZPOPMAX,ZPOPMIN,ZRANGE,ZRANGEBYLEX,ZREVRANGEBYLEX,ZRANGEBYSCORE,ZRANK,ZREM,ZREMRANGEBYLEX,ZREMRANGEBYRANK,ZREMRANGEBYSCORE,ZREVRANGE,ZREVRANGEBYSCORE,ZREVRANK,ZSCORE,ZUNIONSTORE,SCAN,SSCAN,HSCAN,ZSCAN,XINFO,XADD,XTRIM,XDEL,XRANGE,XREVRANGE,XLEN,XREAD,XGROUP,XREADGROUP,XACK,XCLAIM,XPENDING,GEORADIUS_RO,GEORADIUSBYMEMBER_RO,LOLWUT,XSETID,SUBSTR",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.3",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "repl-backlog-size",
                "ParameterValue": "1048576",
                "Description": "The replication backlog size in bytes for PSYNC. This is the size of the buffer which accumulates slave data when slave is disconnected for some time, so that when slave reconnects again, only transfer the portion of data which the slave missed. Minimum value is 16K.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "16384-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "repl-backlog-ttl",
                "ParameterValue": "3600",
                "Description": "The amount of time in seconds after the master no longer have any slaves connected for the master to free the replication backlog. A value of 0 means to never release the backlog.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "replica-allow-chaining",
                "ParameterValue": "no",
                "Description": "Configures if chaining of replicas is allowed",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "replica-ignore-maxmemory",
                "ParameterValue": "yes",
                "Description": "Determines if replica ignores maxmemory setting by not evicting items independent from the master",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "replica-lazy-flush",
                "ParameterValue": "no",
                "Description": "Perform an asynchronous flushDB during replica sync",
                "Source": "system",
                "DataType": "string",
                "AllowedValues": "yes,no",
                "IsModifiable": false,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "reserved-memory-percent",
                "ParameterValue": "25",
                "Description": "The percent of memory reserved for non-cache memory usage. You may want to increase this parameter for nodes with read replicas, AOF enabled, etc, to reduce swap usage.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-100",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "set-max-intset-entries",
                "ParameterValue": "512",
                "Description": "The limit in the size of the set in order for the dataset to be compressed.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "slowlog-log-slower-than",
                "ParameterValue": "10000",
                "Description": "The execution time, in microseconds, to exceed in order for the command to get logged. Note that a negative number disables the slow log, while a value of zero forces the logging of every command.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "slowlog-max-len",
                "ParameterValue": "128",
                "Description": "The length of the slow log. There is no limit to this length. Just be aware that it will consume memory. You can reclaim memory used by the slow log with SLOWLOG RESET.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "stream-node-max-bytes",
                "ParameterValue": "4096",
                "Description": "The maximum size of a single node in a stream in bytes",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "stream-node-max-entries",
                "ParameterValue": "100",
                "Description": "The maximum number of items a single node in a stream can contain",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "tcp-keepalive",
                "ParameterValue": "300",
                "Description": "If non-zero, send ACKs every given number of seconds.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "timeout",
                "ParameterValue": "0",
                "Description": "Close connection if client is idle for a given number of seconds, or never if 0.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0,20-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "zset-max-ziplist-entries",
                "ParameterValue": "128",
                "Description": "The maximum number of sorted set entries in order for the dataset to be compressed.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            },
            {
                "ParameterName": "zset-max-ziplist-value",
                "ParameterValue": "64",
                "Description": "The threshold of biggest sorted set entries in order for the dataset to be compressed.",
                "Source": "system",
                "DataType": "integer",
                "AllowedValues": "0-",
                "IsModifiable": true,
                "MinimumEngineVersion": "5.0.0",
                "ChangeType": "immediate"
            }
        ]
    }
}

Come descrivere gli eventi di un gruppo di replica

L’esempio describe-events seguente restituisce un elenco di eventi per un gruppo di replica.

aws elasticache describe-events \
    --source-identifier test-cluster \
    --source-type replication-group

Output:

{
    "Events": [
        {
            "SourceIdentifier": "test-cluster",
            "SourceType": "replication-group",
            "Message": "Automatic failover has been turned on for replication group test-cluster",
            "Date": "2020-03-18T23:51:34.457Z"
        },
        {
            "SourceIdentifier": "test-cluster",
            "SourceType": "replication-group",
            "Message": "Replication group test-cluster created",
            "Date": "2020-03-18T23:50:31.378Z"
        }
    ]
}

Per ulteriori informazioni, consulta Monitoraggio degli eventi nella Guida per l’utente di ElastiCache.

Come descrivere i gruppi di replica globale

L’esempio describe-global-replication-groups seguente restituisce i dettagli relativi a un datastore globale.

aws elasticache describe-global-replication-groups \
    --global-replication-group-id my-grg

Output:

{
    "GlobalReplicationGroups": [
        {
            "GlobalReplicationGroupId": "my-grg",
            "GlobalReplicationGroupDescription": "my-grg",
            "Status": "creating",
            "CacheNodeType": "cache.r5.large",
            "Engine": "redis",
            "EngineVersion": "5.0.6",
            "ClusterEnabled": false,
            "AuthTokenEnabled": false,
            "TransitEncryptionEnabled": false,
            "AtRestEncryptionEnabled": false
        }
    ]
}

Per ulteriori informazioni, consulta Replica tra AWS regioni utilizzando Global Datastore nella Guida per l'utente di Elasticache.

Come restituire un elenco di dettagli del gruppo di replica

L’esempio describe-replication-groups seguente restituisce i gruppi di replica.

aws elasticache describe-replication-groups

Output:

{
    "ReplicationGroups": [
        {
            "ReplicationGroupId": "my-cluster",
            "Description": "mycluster",
            "Status": "available",
            "PendingModifiedValues": {},
            "MemberClusters": [
                "pat-cluster-001",
                "pat-cluster-002",
                "pat-cluster-003",
                "pat-cluster-004"
            ],
            "NodeGroups": [
                {
                    "NodeGroupId": "0001",
                    "Status": "available",
                    "PrimaryEndpoint": {
                        "Address": "my-cluster.xxxxih.ng.0001.usw2.cache.amazonaws.com",
                        "Port": 6379
                    },
                    "ReaderEndpoint": {
                        "Address": "my-cluster-ro.xxxxih.ng.0001.usw2.cache.amazonaws.com",
                        "Port": 6379
                    },
                    "NodeGroupMembers": [
                        {
                            "CacheClusterId": "my-cluster-001",
                            "CacheNodeId": "0001",
                            "ReadEndpoint": {
                                "Address": "pat-cluster-001.xxxih.0001.usw2.cache.amazonaws.com",
                                "Port": 6379
                            },
                            "PreferredAvailabilityZone": "us-west-2a",
                            "CurrentRole": "primary"
                        },
                        {
                            "CacheClusterId": "my-cluster-002",
                            "CacheNodeId": "0001",
                            "ReadEndpoint": {
                                "Address": "pat-cluster-002.xxxxih.0001.usw2.cache.amazonaws.com",
                                "Port": 6379
                            },
                            "PreferredAvailabilityZone": "us-west-2a",
                            "CurrentRole": "replica"
                        },
                        {
                            "CacheClusterId": "my-cluster-003",
                            "CacheNodeId": "0001",
                            "ReadEndpoint": {
                                "Address": "pat-cluster-003.xxxxih.0001.usw2.cache.amazonaws.com",
                                "Port": 6379
                            },
                            "PreferredAvailabilityZone": "us-west-2a",
                            "CurrentRole": "replica"
                        },
                        {
                            "CacheClusterId": "my-cluster-004",
                            "CacheNodeId": "0001",
                            "ReadEndpoint": {
                                "Address": "pat-cluster-004.xxxih.0001.usw2.cache.amazonaws.com",
                                "Port": 6379
                            },
                            "PreferredAvailabilityZone": "us-west-2a",
                            "CurrentRole": "replica"
                        }
                    ]
                }
            ],
            "AutomaticFailover": "disabled",
            "SnapshotRetentionLimit": 0,
            "SnapshotWindow": "07:30-08:30",
            "ClusterEnabled": false,
            "CacheNodeType": "cache.r5.xlarge",
            "AuthTokenEnabled": false,
            "TransitEncryptionEnabled": false,
            "AtRestEncryptionEnabled": false,
            "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxxx152:replicationgroup:my-cluster",
            "LogDeliveryConfigurations": [
                {
                    "LogType": "slow-log",
                    "DestinationType": "cloudwatch-logs",
                    "DestinationDetails": {
                        "CloudWatchLogsDetails": {
                            "LogGroup": "test-log"
                        }
                    },
                    "LogFormat": "json",
                    "Status": "active"
                }
            ]
        }
    ]
}

Per ulteriori informazioni, consulta Gestione dei cluster nella Guida per l’utente di ElastiCache.

Descrivere reserved-cache-nodes-offerings

L'describe-reserved-cache-nodes-offeringsesempio seguente restituisce i dettagli di un' reserved-cache-nodeopzione.

aws elasticache describe-reserved-cache-nodes-offerings

Output:

{
    "ReservedCacheNodesOfferings": [
        {
            "ReservedCacheNodesOfferingId": "01ce0a19-a476-41cb-8aee-48eacbcdc8e5",
            "CacheNodeType": "cache.t3.small",
            "Duration": 31536000,
            "FixedPrice": 97.0,
            "UsagePrice": 0.0,
            "ProductDescription": "memcached",
            "OfferingType": "Partial Upfront",
            "RecurringCharges": [
                {
                    "RecurringChargeAmount": 0.011,
                    "RecurringChargeFrequency": "Hourly"
                }
            ]
        },
        {
            "ReservedCacheNodesOfferingId": "0443a27b-4da5-4b90-b92d-929fbd7abed2",
            "CacheNodeType": "cache.m3.2xlarge",
            "Duration": 31536000,
            "FixedPrice": 1772.0,
            "UsagePrice": 0.0,
            "ProductDescription": "redis",
            "OfferingType": "Heavy Utilization",
            "RecurringCharges": [
                {
                    "RecurringChargeAmount": 0.25,
                    "RecurringChargeFrequency": "Hourly"
                }
            ]
        },

        ...

    ]
}

Per ulteriori informazioni, consulta Recupero di informazioni sulle offerte di nodi riservati nella Guida per l’utente di ElastiCache Redis o Recupero di informazioni sulle offerte di nodi riservati nella Guida per l’utente di ElastiCache Memcached.

Come descrivere i nodi di cache riservati

L’esempio describe-reserved-cache-nodes seguente restituisce le informazioni sui nodi di cache riservati per l’account oppure su un determinato nodo di cache riservato.

come elasticache describe-reserved-cache-nodes

Output:

{
    "ReservedCacheNodes": [
        {
            "ReservedCacheNodeId": "mynode",
            "ReservedCacheNodesOfferingId": "xxxxxxxxx-xxxxx-xxxxx-xxxx-xxxxxxxx71",
            "CacheNodeType": "cache.t3.small",
            "StartTime": "2019-12-06T02:50:44.003Z",
            "Duration": 31536000,
            "FixedPrice": 0.0,
            "UsagePrice": 0.0,
            "CacheNodeCount": 1,
            "ProductDescription": "redis",
            "OfferingType": "No Upfront",
            "State": "payment-pending",
            "RecurringCharges": [
                {
                    "RecurringChargeAmount": 0.023,
                    "RecurringChargeFrequency": "Hourly"
                }
            ],
            "ReservationARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxxxx52:reserved-instance:mynode"
        }
    ]
}

Per ulteriori informazioni, consulta Gestione dei costi con nodi riservati nella Guida per l’utente di ElastiCache.

Come descrivere gli aggiornamenti del servizio

L’esempio describe-service-updates seguente restituisce i dettagli relativi agli aggiornamenti del servizio.

aws elasticache describe-service-updates

Output:

{
     "ServiceUpdates": [
         {
             "ServiceUpdateName": "elc-xxxxxxxx7-001",
             "ServiceUpdateReleaseDate": "2019-10-09T16:00:00Z",
             "ServiceUpdateEndDate": "2020-02-09T15:59:59Z",
             "ServiceUpdateSeverity": "important",
             "ServiceUpdateRecommendedApplyByDate": "2019-11-08T15:59:59Z",
             "ServiceUpdateStatus": "available",
             "ServiceUpdateDescription": "Upgrades to improve the security, reliability, and operational performance of your ElastiCache nodes",
             "ServiceUpdateType": "security-update",
             "Engine": "redis, memcached",
             "EngineVersion": "redis 2.6.13 and onwards, memcached 1.4.5 and onwards",
             "AutoUpdateAfterRecommendedApplyByDate": false,
             "EstimatedUpdateTime": "30 minutes per node"
         },
         {
             "ServiceUpdateName": "elc-xxxxxxxx4-001",
             "ServiceUpdateReleaseDate": "2019-06-11T15:00:00Z",
             "ServiceUpdateEndDate": "2019-10-01T09:24:00Z",
             "ServiceUpdateSeverity": "important",
             "ServiceUpdateRecommendedApplyByDate": "2019-07-11T14:59:59Z",
             "ServiceUpdateStatus": "expired",
             "ServiceUpdateDescription": "Upgrades to improve the security, reliability, and operational performance of your ElastiCache nodes",
             "ServiceUpdateType": "security-update",
             "Engine": "redis",
             "EngineVersion": "redis 3.2.6, redis 4.0 and onwards",
             "AutoUpdateAfterRecommendedApplyByDate": false,
             "EstimatedUpdateTime": "30 minutes per node"
         }
     ]
 }

Come descrivere gli snapshot

L’esempio “describe-snapshots” seguente restituisce le informazioni relative agli snapshot del cluster o del gruppo di replica.

aws elasticache describe-snapshots

Output:

{
    "Snapshots": [
        {
            "SnapshotName": "automatic.my-cluster2-002-2019-12-05-06-38",
            "CacheClusterId": "my-cluster2-002",
            "SnapshotStatus": "available",
            "SnapshotSource": "automated",
            "CacheNodeType": "cache.r5.large",
            "Engine": "redis",
            "EngineVersion": "5.0.5",
            "NumCacheNodes": 1,
            "PreferredAvailabilityZone": "us-west-2a",
            "CacheClusterCreateTime": "2019-11-26T01:22:52.396Z",
            "PreferredMaintenanceWindow": "mon:17:30-mon:18:30",
            "TopicArn": "arn:aws:sns:us-west-2:xxxxxxxxx52:My_Topic",
            "Port": 6379,
            "CacheParameterGroupName": "default.redis5.0",
            "CacheSubnetGroupName": "kxkxk",
            "VpcId": "vpc-a3e97cdb",
            "AutoMinorVersionUpgrade": true,
            "SnapshotRetentionLimit": 1,
            "SnapshotWindow": "06:30-07:30",
            "NodeSnapshots": [
                {
                    "CacheNodeId": "0001",
                    "CacheSize": "5 MB",
                    "CacheNodeCreateTime": "2019-11-26T01:22:52.396Z",
                    "SnapshotCreateTime": "2019-12-05T06:38:23Z"
                }
            ]
        },
        {
            "SnapshotName": "myreplica-backup",
            "CacheClusterId": "myreplica",
            "SnapshotStatus": "available",
            "SnapshotSource": "manual",
            "CacheNodeType": "cache.r5.large",
            "Engine": "redis",
            "EngineVersion": "5.0.5",
            "NumCacheNodes": 1,
            "PreferredAvailabilityZone": "us-west-2a",
            "CacheClusterCreateTime": "2019-11-26T00:14:52.439Z",
            "PreferredMaintenanceWindow": "sat:10:00-sat:11:00",
            "TopicArn": "arn:aws:sns:us-west-2:xxxxxxxxxx152:My_Topic",
            "Port": 6379,
            "CacheParameterGroupName": "default.redis5.0",
            "CacheSubnetGroupName": "kxkxk",
            "VpcId": "vpc-a3e97cdb",
            "AutoMinorVersionUpgrade": true,
            "SnapshotRetentionLimit": 0,
            "SnapshotWindow": "09:00-10:00",
            "NodeSnapshots": [
                {
                    "CacheNodeId": "0001",
                    "CacheSize": "5 MB",
                    "CacheNodeCreateTime": "2019-11-26T00:14:52.439Z",
                    "SnapshotCreateTime": "2019-11-26T00:25:01Z"
                }
            ]
        },
        {
            "SnapshotName": "my-cluster",
            "CacheClusterId": "my-cluster-003",
            "SnapshotStatus": "available",
            "SnapshotSource": "manual",
            "CacheNodeType": "cache.r5.large",
            "Engine": "redis",
            "EngineVersion": "5.0.5",
            "NumCacheNodes": 1,
            "PreferredAvailabilityZone": "us-west-2a",
            "CacheClusterCreateTime": "2019-11-25T23:56:17.186Z",
            "PreferredMaintenanceWindow": "sat:10:00-sat:11:00",
            "TopicArn": "arn:aws:sns:us-west-2:xxxxxxxxxx152:My_Topic",
            "Port": 6379,
            "CacheParameterGroupName": "default.redis5.0",
            "CacheSubnetGroupName": "kxkxk",
            "VpcId": "vpc-a3e97cdb",
            "AutoMinorVersionUpgrade": true,
            "SnapshotRetentionLimit": 0,
            "SnapshotWindow": "09:00-10:00",
            "NodeSnapshots": [
                {
                    "CacheNodeId": "0001",
                    "CacheSize": "5 MB",
                    "CacheNodeCreateTime": "2019-11-25T23:56:17.186Z",
                    "SnapshotCreateTime": "2019-11-26T03:08:33Z"
                }
            ]
        }
    ]
}

Per ulteriori informazioni, consulta Backup and Restore ElastiCache for Redis nella Guida per l'utente di Elasticache.

Come descrivere le azioni di aggiornamento

L’esempio describe-update-actions seguente restituisce i dettagli relativi alle azioni di aggiornamento.

aws elasticache describe-update-actions

Output:

{
    "UpdateActions": [
        {
            "ReplicationGroupId": "mycluster",
            "ServiceUpdateName": "elc-20191007-001",
            "ServiceUpdateReleaseDate": "2019-10-09T16:00:00Z",
            "ServiceUpdateSeverity": "important",
            "ServiceUpdateStatus": "available",
            "ServiceUpdateRecommendedApplyByDate": "2019-11-08T15:59:59Z",
            "ServiceUpdateType": "security-update",
            "UpdateActionAvailableDate": "2019-12-05T19:15:19.995Z",
            "UpdateActionStatus": "complete",
            "NodesUpdated": "9/9",
            "UpdateActionStatusModifiedDate": "2019-12-05T19:15:20.461Z",
            "SlaMet": "n/a",
            "Engine": "redis"
        },
        {
            "CacheClusterId": "my-memcached-cluster",
            "ServiceUpdateName": "elc-20191007-001",
            "ServiceUpdateReleaseDate": "2019-10-09T16:00:00Z",
            "ServiceUpdateSeverity": "important",
            "ServiceUpdateStatus": "available",
            "ServiceUpdateRecommendedApplyByDate": "2019-11-08T15:59:59Z",
            "ServiceUpdateType": "security-update",
            "UpdateActionAvailableDate": "2019-12-04T18:26:05.349Z",
            "UpdateActionStatus": "complete",
            "NodesUpdated": "1/1",
            "UpdateActionStatusModifiedDate": "2019-12-04T18:26:05.352Z",
            "SlaMet": "n/a",
            "Engine": "redis"
        },
        {
            "ReplicationGroupId": "my-cluster",
            "ServiceUpdateName": "elc-20191007-001",
            "ServiceUpdateReleaseDate": "2019-10-09T16:00:00Z",
            "ServiceUpdateSeverity": "important",
            "ServiceUpdateStatus": "available",
            "ServiceUpdateRecommendedApplyByDate": "2019-11-08T15:59:59Z",
            "ServiceUpdateType": "security-update",
            "UpdateActionAvailableDate": "2019-11-26T03:36:26.320Z",
            "UpdateActionStatus": "complete",
            "NodesUpdated": "4/4",
            "UpdateActionStatusModifiedDate": "2019-12-04T22:11:12.664Z",
            "SlaMet": "n/a",
            "Engine": "redis"
        },
        {
            "ReplicationGroupId": "my-cluster2",
            "ServiceUpdateName": "elc-20191007-001",
            "ServiceUpdateReleaseDate": "2019-10-09T16:00:00Z",
            "ServiceUpdateSeverity": "important",
            "ServiceUpdateStatus": "available",
            "ServiceUpdateRecommendedApplyByDate": "2019-11-08T15:59:59Z",
            "ServiceUpdateType": "security-update",
            "UpdateActionAvailableDate": "2019-11-26T01:26:01.617Z",
            "UpdateActionStatus": "complete",
            "NodesUpdated": "3/3",
            "UpdateActionStatusModifiedDate": "2019-11-26T01:26:01.753Z",
            "SlaMet": "n/a",
            "Engine": "redis"
        }
    ]
}

Per ulteriori informazioni, consulta Self-Service Updates in Amazon ElastiCache nella Elasticache User Guide.

Come descrivere i gruppi di utenti

L’esempio describe-user-groups seguente restituisce un elenco di gruppi di utenti.

aws elasticache describe-user-groups

Output:

{
    "UserGroups": [
        {
            "UserGroupId": "myusergroup",
            "Status": "active",
            "Engine": "redis",
            "UserIds": [
                "default"
            ],
            "ReplicationGroups": [],
            "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:usergroup:myusergroup"
        }
    ]
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Come descrivere gli utenti

L’esempio describe-users seguente restituisce un elenco di utenti.

aws elasticache describe-users

Output:

{
    "Users": [
        {
            "UserId": "default",
            "UserName": "default",
            "Status": "active",
            "Engine": "redis",
            "AccessString": "on ~* +@all",
            "UserGroupIds": [
                "myusergroup"
            ],
            "Authentication": {
                "Type": "no-password"
            },
            "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:user:default"
        },
        {
            "UserId": "user1",
            "UserName": "myUser",
            "Status": "active",
            "Engine": "redis",
            "AccessString": "on ~* +@all",
            "UserGroupIds": [],
            "Authentication": {
                "Type": "password",
                "PasswordCount": 1
            },
            "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:user:user1"
        },
        {
            "UserId": "user2",
            "UserName": "myUser",
            "Status": "active",
            "Engine": "redis",
            "AccessString": "on ~app::* -@all +@read +@hash +@bitmap +@geo -setbit -bitfield -hset -hsetnx -hmset -hincrby -hincrbyfloat -hdel -bitop -geoadd -georadius -georadiusbymember",
            "UserGroupIds": [],
            "Authentication": {
                "Type": "password",
                "PasswordCount": 1
            },
            "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:user:user2"
        }
    ]
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Come dissociare un cluster secondario da un gruppo di replica globale

L’esempio disassociate-global-replication-group seguente rimuove un cluster secondario da un datastore globale.

aws elasticache disassociate-global-replication-group \
    --global-replication-group-id my-grg \
    --replication-group-id my-cluster-grg-secondary \
    --replication-group-region us-east-1

Output:

{
    "GlobalReplicationGroup": {
        "GlobalReplicationGroupId": "my-grg",
        "GlobalReplicationGroupDescription": "my-grg",
        "Status": "modifying",
        "CacheNodeType": "cache.r5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.6",
        "Members": [
            {
                "ReplicationGroupId": "my-cluster-grg-secondary",
                "ReplicationGroupRegion": "us-east-1",
                "Role": "SECONDARY",
                "AutomaticFailover": "enabled",
                "Status": "associated"
            },
            {
                "ReplicationGroupId": "my-cluster-grg",
                "ReplicationGroupRegion": "us-west-2",
                "Role": "PRIMARY",
                "AutomaticFailover": "enabled",
                "Status": "associated"
            }
        ],
        "ClusterEnabled": false,
        "AuthTokenEnabled": false,
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Replica tra AWS regioni utilizzando Global Datastore nella Guida per l'utente di Elasticache.

Come aumentare il numero dei gruppi di nodi in un gruppo di replica globale

L’esempio increase-node-groups-in-global-replication-group seguente aumenta il numero dei gruppi di nodi utilizzando il motore Redis.

aws elasticache increase-node-groups-in-global-replication-group \
    --global-replication-group-id sgaui-pat-test-4 \
    --node-group-count 6 \
    --apply-immediately

Output:

{
    "GlobalReplicationGroup": {
        "GlobalReplicationGroupId": "sgaui-test-4",
        "GlobalReplicationGroupDescription": "test-4",
        "Status": "modifying",
        "CacheNodeType": "cache.r5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.6",
        "Members": [
            {
                "ReplicationGroupId": "my-cluster-b",
                "ReplicationGroupRegion": "us-east-1",
                "Role": "SECONDARY",
                "AutomaticFailover": "enabled",
                "Status": "associated"
            },
            {
                "ReplicationGroupId": "my-cluster-a",
                "ReplicationGroupRegion": "us-west-2",
                "Role": "PRIMARY",
                "AutomaticFailover": "enabled",
                "Status": "associated"
            }
        ],
        "ClusterEnabled": true,
        "GlobalNodeGroups": [
            {
                "GlobalNodeGroupId": "sgaui-test-4-0001",
                "Slots": "0-234,2420-5461"
            },
            {
                "GlobalNodeGroupId": "sgaui-test-4-0002",
                "Slots": "5462-5904,6997-9830"
            },
            {
                "GlobalNodeGroupId": "sgaui-test-4-0003",
                "Slots": "10923-11190,13375-16383"
            },
            {
                "GlobalNodeGroupId": "sgaui-test-4-0004",
                "Slots": "235-2419,5905-6996"
            },
            {
                "GlobalNodeGroupId": "sgaui-test-4-0005",
                "Slots": "9831-10922,11191-13374"
            }
        ],
        "AuthTokenEnabled": false,
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Replica tra AWS regioni utilizzando Global Datastore nella Guida per l'utente di Elasticache.

Come aumentare il numero di repliche

L’esempio increase-replica-count seguente esegue una di queste due operazioni. Può aumentare dinamicamente il numero di repliche in un gruppo di replica Redis (modalità cluster disabilitata). In alternativa, può aumentare dinamicamente il numero di nodi di replica in uno o più gruppi di nodi (shard) di un gruppo di replica Redis (modalità cluster abilitata). Questa operazione viene eseguita senza causare alcun tempo di inattività del cluster.

aws elasticache increase-replica-count \
    --replication-group-id "my-cluster" \
    --apply-immediately \
    --new-replica-count 3

Output:

{
     "ReplicationGroup": {
         "ReplicationGroupId": "my-cluster",
         "Description": " ",
         "Status": "modifying",
         "PendingModifiedValues": {},
         "MemberClusters": [
             "my-cluster-001",
             "my-cluster-002",
             "my-cluster-003",
             "my-cluster-004"
         ],
         "NodeGroups": [
             {
                 "NodeGroupId": "0001",
                 "Status": "modifying",
                 "PrimaryEndpoint": {
                     "Address": "my-cluster.xxxxxih.ng.0001.usw2.cache.amazonaws.com",
                     "Port": 6379
                 },
                 "ReaderEndpoint": {
                     "Address": "my-cluster-ro.xxxxxxih.ng.0001.usw2.cache.amazonaws.com",
                     "Port": 6379
                 },
                 "NodeGroupMembers": [
                     {
                         "CacheClusterId": "my-cluster-001",
                         "CacheNodeId": "0001",
                         "ReadEndpoint": {
                             "Address": "my-cluster-001.xxxxxih.0001.usw2.cache.amazonaws.com",
                             "Port": 6379
                         },
                         "PreferredAvailabilityZone": "us-west-2a",
                         "CurrentRole": "primary"
                     },
                     {
                         "CacheClusterId": "my-cluster-003",
                         "CacheNodeId": "0001",
                         "ReadEndpoint": {
                             "Address": "my-cluster-003.xxxxxih.0001.usw2.cache.amazonaws.com",
                             "Port": 6379
                         },
                         "PreferredAvailabilityZone": "us-west-2a",
                         "CurrentRole": "replica"
                     }
                 ]
             }
         ],
         "AutomaticFailover": "disabled",
         "SnapshotRetentionLimit": 0,
         "SnapshotWindow": "07:30-08:30",
         "ClusterEnabled": false,
         "CacheNodeType": "cache.r5.xlarge",
         "TransitEncryptionEnabled": false,
         "AtRestEncryptionEnabled": false
     }
 }

Per ulteriori informazioni, consulta Incremento del numero di repliche in uno shard nella Guida per l’utente di ElastiCache.

Come elencare le modifiche ai nodi consentite

L’esempio list-allowed-node-type-modifications seguente elenca tutti i tipi di nodi disponibili su cui è possibile scalare il tipo di nodo corrente del gruppo di replica o del cluster Redis.

aws elasticache list-allowed-node-type-modifications \
    --replication-group-id "my-replication-group"

Output:

{
    "ScaleUpModifications": [
        "cache.m5.12xlarge",
        "cache.m5.24xlarge",
        "cache.m5.4xlarge",
        "cache.r5.12xlarge",
        "cache.r5.24xlarge",
        "cache.r5.2xlarge",
        "cache.r5.4xlarge"
    ],
    "ScaleDownModifications": [
        "cache.m3.large",
        "cache.m3.medium",
        "cache.m3.xlarge",
        "cache.m4.large",
        "cache.m4.xlarge",
        "cache.m5.2xlarge",
        "cache.m5.large",
        "cache.m5.xlarge",
        "cache.r3.large",
        "cache.r4.large",
        "cache.r4.xlarge",
        "cache.r5.large",
        "cache.t2.medium",
        "cache.t2.micro",
        "cache.t2.small",
        "cache.t3.medium",
        "cache.t3.micro",
        "cache.t3.small"
    ]
}

Per ulteriori informazioni, consulta Scaling ElastiCache for Redis Clusters nella Guida per l'utente di Elasticache.

Come elencare i tag per una risorsa

L’esempio list-tags-for-resource seguente elenca i tag per una risorsa.

aws elasticache list-tags-for-resource \
    --resource-name "arn:aws:elasticache:us-east-1:123456789012:cluster:my-cluster"

Output:

{
    "TagList": [
        {
            "Key": "Project",
            "Value": "querySpeedUp"
        },
        {
            "Key": "Environment",
            "Value": "PROD"
        }
    ]
}

Per ulteriori informazioni, consulta Elencare i tag utilizzando la AWS CLI nella Guida per l'utente di Elasticache.

Come modificare i cluster di cache

L’esempio modify-cache-cluster seguente modifica le impostazioni per il cluster specificato.

aws elasticache modify-cache-cluster \
    --cache-cluster-id "my-cluster" \
    --num-cache-nodes 1

Output:

{
    "CacheCluster": {
        "CacheClusterId": "my-cluster",
        "ClientDownloadLandingPage": "https://console.aws.amazon.com/elasticache/home#client-download:",
        "CacheNodeType": "cache.m5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.5",
        "CacheClusterStatus": "available",
        "NumCacheNodes": 1,
        "PreferredAvailabilityZone": "us-west-2c",
        "CacheClusterCreateTime": "2019-12-04T18:24:56.652Z",
        "PreferredMaintenanceWindow": "sat:10:00-sat:11:00",
        "PendingModifiedValues": {},
        "CacheSecurityGroups": [],
        "CacheParameterGroup": {
            "CacheParameterGroupName": "default.redis5.0",
            "ParameterApplyStatus": "in-sync",
            "CacheNodeIdsToReboot": []
        },
        "CacheSubnetGroupName": "default",
        "AutoMinorVersionUpgrade": true,
        "SnapshotRetentionLimit": 0,
        "SnapshotWindow": "07:00-08:00",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Modificare un ElastiCache cluster nella Guida per l'utente di Elasticache.

Come modificare un gruppo di parametri cache

L’esempio modify-cache-parameter-group seguente modifica i parametri del gruppo di parametri cache specificato.

aws elasticache modify-cache-parameter-group \
    --cache-parameter-group-name "mygroup" \
    --parameter-name-values "ParameterName=activedefrag, ParameterValue=no"

Output:

{
    "CacheParameterGroupName": "mygroup"
}

Per ulteriori informazioni, consulta Modifica di un gruppo di parametri nella Guida per l’utente di ElastiCache.

Come modificare un gruppo di sottoreti della cache

L’esempio modify-cache-subnet-group seguente modifica il gruppo di sottoreti della cache specificato.

aws elasticache modify-cache-subnet-group \
    --cache-subnet-group-name kxkxk \
    --cache-subnet-group-description "mygroup"

Output:

{
    "CacheSubnetGroup": {
        "CacheSubnetGroupName": "kxkxk",
        "CacheSubnetGroupDescription": "mygroup",
        "VpcId": "vpc-xxxxcdb",
        "Subnets": [
            {
                "SubnetIdentifier": "subnet-xxxxbff",
                "SubnetAvailabilityZone": {
                    "Name": "us-west-2a"
                }
            }
        ]
    }
}

Per ulteriori informazioni, consulta Modifica di un gruppo di sottoreti nella Guida per l’utente di ElastiCache.

Come modificare un gruppo di replica globale

L’esempio modify-global-replication-group seguente modifica le proprietà di un gruppo di replica globale, con disabilitazione del failover automatico, utilizzando il motore Redis.

aws elasticache modify-global-replication-group \
    --global-replication-group-id sgaui-pat-group \
    --apply-immediately \
    --no-automatic-failover-enabled

Output

{
    "GlobalReplicationGroup": {
        "GlobalReplicationGroupId": "sgaui-test-group",
        "GlobalReplicationGroupDescription": " ",
        "Status": "modifying",
        "CacheNodeType": "cache.r5.large",
        "Engine": "redis",
        "EngineVersion": "5.0.6",
        "ClusterEnabled": false,
        "AuthTokenEnabled": false,
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Replica tra AWS regioni utilizzando Global Datastore nella Guida per l'utente di Elasticache.

Come modificare la configurazione di uno shard di un gruppo di replica

Il comando modify-replication-group-shard-configuration seguente riduce il numero dei gruppi di nodi utilizzando il motore Redis.

aws elasticache modify-replication-group-shard-configuration \
    --replication-group-id mycluster \
    --node-group-count 3 \
    --apply-immediately \
    --node-groups-to-remove 0002

Output

{
    "ReplicationGroup": {
        "ReplicationGroupId": "mycluster",
        "Description": "mycluster",
        "GlobalReplicationGroupInfo": {},
        "Status": "modifying",
        "PendingModifiedValues": {},
        "MemberClusters": [
            "mycluster-0002-001",
            "mycluster-0002-002",
            "mycluster-0002-003",
            "mycluster-0003-001",
            "mycluster-0003-002",
            "mycluster-0003-003",
            "mycluster-0003-004",
            "mycluster-0004-001",
            "mycluster-0004-002",
            "mycluster-0004-003",
            "mycluster-0005-001",
            "mycluster-0005-002",
            "mycluster-0005-003"
        ],
        "NodeGroups": [
            {
                "NodeGroupId": "0002",
                "Status": "modifying",
                "Slots": "894-1767,3134-4443,5149-5461,6827-7332,12570-13662",
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "mycluster-0002-001",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    },
                    {
                        "CacheClusterId": "mycluster-0002-002",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2a"
                    },
                    {
                        "CacheClusterId": "mycluster-0002-003",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2b"
                    }
                ]
            },
            {
                "NodeGroupId": "0003",
                "Status": "modifying",
                "Slots": "0-324,5462-5692,6784-6826,7698-8191,10923-11075,12441-12569,13663-16383",
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "mycluster-0003-001",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    },
                    {
                        "CacheClusterId": "mycluster-0003-002",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2b"
                    },
                    {
                        "CacheClusterId": "mycluster-0003-003",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2a"
                    },
                    {
                        "CacheClusterId": "mycluster-0003-004",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    }
                ]
            },
            {
                "NodeGroupId": "0004",
                "Status": "modifying",
                "Slots": "325-336,4706-5148,7333-7697,9012-10922,11076-12440",
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "mycluster-0004-001",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2b"
                    },
                    {
                        "CacheClusterId": "mycluster-0004-002",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2a"
                    },
                    {
                        "CacheClusterId": "mycluster-0004-003",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    }
                ]
            },
            {
                "NodeGroupId": "0005",
                "Status": "modifying",
                "Slots": "337-893,1768-3133,4444-4705,5693-6783,8192-9011",
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "mycluster-0005-001",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2a"
                    },
                    {
                        "CacheClusterId": "mycluster-0005-002",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    },
                    {
                        "CacheClusterId": "mycluster-0005-003",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2b"
                    }
                ]
            }
        ],
        "AutomaticFailover": "enabled",
        "MultiAZ": "enabled",
        "ConfigurationEndpoint": {
            "Address": "mycluster.g2xbih.clustercfg.usw2.cache.amazonaws.com",
            "Port": 6379
        },
        "SnapshotRetentionLimit": 1,
        "SnapshotWindow": "13:00-14:00",
        "ClusterEnabled": true,
        "CacheNodeType": "cache.r5.xlarge",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Scaling ElastiCache for Redis Clusters nella Guida per l'utente di Elasticache.

Come modificare un gruppo di replica

Il comando modify-replication-group seguente disabilita Multi-AZ utilizzando il motore Redis.

aws elasticache modify-replication-group \
    --replication-group-id test-cluster \
    --no-multi-az-enabled \
    --apply-immediately

Output

{
    "ReplicationGroup": {
        "ReplicationGroupId": "test-cluster",
        "Description": "test-cluster",
        "GlobalReplicationGroupInfo": {
            "GlobalReplicationGroupId": "sgaui-pat-group",
            "GlobalReplicationGroupMemberRole": "PRIMARY"
        },
        "Status": "available",
        "PendingModifiedValues": {},
        "MemberClusters": [
            "test-cluster-001",
            "test-cluster-002",
            "test-cluster-003"
        ],
        "NodeGroups": [
            {
                "NodeGroupId": "0001",
                "Status": "available",
                "PrimaryEndpoint": {
                    "Address": "test-cluster.g2xbih.ng.0001.usw2.cache.amazonaws.com",
                    "Port": 6379
                },
                "ReaderEndpoint": {
                    "Address": "test-cluster-ro.g2xbih.ng.0001.usw2.cache.amazonaws.com",
                    "Port": 6379
                },
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "test-cluster-001",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "test-cluster-001.g2xbih.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2c",
                        "CurrentRole": "primary"
                    },
                    {
                        "CacheClusterId": "test-cluster-002",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "test-cluster-002.g2xbih.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2b",
                        "CurrentRole": "replica"
                    },
                    {
                        "CacheClusterId": "test-cluster-003",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "test-cluster-003.g2xbih.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2a",
                        "CurrentRole": "replica"
                    }
                ]
            }
        ],
        "SnapshottingClusterId": "test-cluster-002",
        "AutomaticFailover": "enabled",
        "MultiAZ": "disabled",
        "SnapshotRetentionLimit": 1,
        "SnapshotWindow": "08:00-09:00",
        "ClusterEnabled": false,
        "CacheNodeType": "cache.r5.large",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Modifica di un gruppo di replica nella Guida per l’utente di ElastiCache.

Come modificare un gruppo di utenti

L’esempio modify-user-group seguente aggiunge un utente al gruppo di utenti.

aws elasticache modify-user-group \
    --user-group-id myusergroup \
    --user-ids-to-add user1

Output:

{
    "UserGroupId": "myusergroup",
    "Status": "modifying",
    "Engine": "redis",
    "UserIds": [
        "default"
    ],
    "PendingChanges": {
        "UserIdsToAdd": [
            "user1"
        ]
    },
    "ReplicationGroups": [],
    "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:usergroup:myusergroup"
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Come modificare un utente

L’esempio modify-user seguente modifica la stringa di accesso di un utente.

aws elasticache modify-user \
    --user-id user2 \
    --append-access-string "on ~* +@all"

Output:

{
    "UserId": "user2",
    "UserName": "myUser",
    "Status": "modifying",
    "Engine": "redis",
    "AccessString": "on ~* +@all",
    "UserGroupIds": [],
    "Authentication": {
        "Type": "password",
        "PasswordCount": 1
    },
    "ARN": "arn:aws:elasticache:us-west-2:xxxxxxxxxx52:user:user2"
}

Per ulteriori informazioni, consulta Autenticazione degli utenti con il controllo degli accessi basato sui ruoli (RBAC) nella Guida per l’utente di ElastiCache.

Per acquistare un reserved-cache-node-offering

L’esempio purchase-reserved-cache-nodes-offering seguente consente di acquistare un’offerta di nodi di cache riservati.

aws elasticache purchase-reserved-cache-nodes-offering \
    --reserved-cache-nodes-offering-id xxxxxxx-4da5-4b90-b92d-929fbd7abed2

Output

{
    "ReservedCacheNode": {
        "ReservedCacheNodeId": "ri-2020-06-30-17-59-40-474",
        "ReservedCacheNodesOfferingId": "xxxxxxx-4da5-4b90-b92d-929fbd7abed2",
        "CacheNodeType": "cache.m3.2xlarge",
        "StartTime": "2020-06-30T17:59:40.474000+00:00",
        "Duration": 31536000,
        "FixedPrice": 1772.0,
        "UsagePrice": 0.0,
        "CacheNodeCount": 1,
        "ProductDescription": "redis",
        "OfferingType": "Heavy Utilization",
        "State": "payment-pending",
        "RecurringCharges": [
            {
                "RecurringChargeAmount": 0.25,
                "RecurringChargeFrequency": "Hourly"
            }
        ]
    }
}

Per ulteriori informazioni, consulta Recupero di informazioni sulle offerte di nodi riservati nella Guida per l’utente di ElastiCache Redis o Recupero di informazioni sulle offerte di nodi riservati nella Guida per l’utente di ElastiCache Memcached.

Come riavviare un cluster di cache

L’esempio reboot-cache-cluster seguente riavvia alcuni o tutti i nodi di cache all’interno di un cluster sottoposto a provisioning. Questa operazione applica tutti i gruppi di parametri cache modificati al cluster. L’operazione di riavvio avviene il prima possibile e provoca un’interruzione momentanea del cluster. Durante il riavvio, lo stato del cluster è impostato su REBOOTING.

aws elasticache reboot-cache-cluster \
    --cache-cluster-id "my-cluster-001" \
    --cache-node-ids-to-reboot "0001"

Output:

{
    "CacheCluster": {
        "CacheClusterId": "my-cluster-001",
        "ClientDownloadLandingPage": "https://console.aws.amazon.com/elasticache/home#client-download:",
        "CacheNodeType": "cache.r5.xlarge",
        "Engine": "redis",
        "EngineVersion": "5.0.5",
        "CacheClusterStatus": "rebooting cache cluster nodes",
        "NumCacheNodes": 1,
        "PreferredAvailabilityZone": "us-west-2a",
        "CacheClusterCreateTime": "2019-11-26T03:35:04.546Z",
        "PreferredMaintenanceWindow": "mon:04:05-mon:05:05",
        "PendingModifiedValues": {},
        "NotificationConfiguration": {
            "TopicArn": "arn:aws:sns:us-west-2:xxxxxxxxxx152:My_Topic",
            "TopicStatus": "active"
        },
        "CacheSecurityGroups": [],
        "CacheParameterGroup": {
            "CacheParameterGroupName": "mygroup",
            "ParameterApplyStatus": "in-sync",
            "CacheNodeIdsToReboot": []
        },
        "CacheSubnetGroupName": "kxkxk",
        "AutoMinorVersionUpgrade": true,
        "SecurityGroups": [
            {
                "SecurityGroupId": "sg-xxxxxxxxxxxxx836",
                "Status": "active"
            },
            {
                "SecurityGroupId": "sg-xxxxxxxx7b",
                "Status": "active"
            }
        ],
        "ReplicationGroupId": "my-cluster",
        "SnapshotRetentionLimit": 0,
        "SnapshotWindow": "07:30-08:30",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta Rebooting a Cluster < https://docs.aws.amazon.com/AmazonElastiCache/ latest/red-ug/Clusters .rebooting.html nella Guida per l'utente di Elasticache.

Come reimpostare un gruppo di parametri cache

L’esempio reset-cache-parameter-group seguente modifica i parametri di un gruppo di parametri cache reimpostando il valore predefinito del motore o del sistema. È possibile reimpostare parametri specifici specificando un elenco di nomi di parametri. Per reimpostare l’intero gruppo di parametri cache, specifica i parametri --reset-all-parameters e --cache-parameter-group-name.

aws elasticache reset-cache-parameter-group \
    --cache-parameter-group-name "mygroup" \
    --reset-all-parameters

Output:

{
    "CacheParameterGroupName": "mygroup"
}

Come avviare una migrazione

Quanto segue start-migration migra i tuoi dati da Redis self-hosted su Amazon ad EC2 Amazon ElastiCache, utilizzando il motore Redis.

aws elasticache start-migration \
   --replication-group-id test \
   --customer-node-endpoint-list "Address='test.g2xbih.ng.0001.usw2.cache.amazonaws.com',Port=6379"

Output

{
    "ReplicationGroup": {
        "ReplicationGroupId": "test",
        "Description": "test",
        "GlobalReplicationGroupInfo": {},
        "Status": "modifying",
        "PendingModifiedValues": {},
        "MemberClusters": [
            "test-001",
            "test-002",
            "test-003"
        ],
        "NodeGroups": [
            {
                "NodeGroupId": "0001",
                "Status": "available",
                "PrimaryEndpoint": {
                    "Address": "test.g2xbih.ng.0001.usw2.cache.amazonaws.com",
                    "Port": 6379
                },
                "ReaderEndpoint": {
                    "Address": "test-ro.g2xbih.ng.0001.usw2.cache.amazonaws.com",
                    "Port": 6379
                },
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "test-001",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "test-001.g2xbih.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2a",
                        "CurrentRole": "primary"
                    },
                    {
                        "CacheClusterId": "test-002",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "test-002.g2xbih.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2c",
                        "CurrentRole": "replica"
                    },
                    {
                        "CacheClusterId": "test-003",
                        "CacheNodeId": "0001",
                        "ReadEndpoint": {
                            "Address": "test-003.g2xbih.0001.usw2.cache.amazonaws.com",
                            "Port": 6379
                        },
                        "PreferredAvailabilityZone": "us-west-2b",
                        "CurrentRole": "replica"
                    }
                ]
            }
        ],
        "SnapshottingClusterId": "test-002",
        "AutomaticFailover": "enabled",
        "MultiAZ": "enabled",
        "SnapshotRetentionLimit": 1,
        "SnapshotWindow": "07:30-08:30",
        "ClusterEnabled": false,
        "CacheNodeType": "cache.r5.large",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}

Per ulteriori informazioni, consulta la sezione Migrazione online a ElastiCache nella Guida per l'utente di Elasticache.

Come testare il failover di un gruppo di nodi

L’esempio test-failover seguente esegue il test del failover automatico sul gruppo di nodi specificato (chiamato shard nella console) in un gruppo di replica (chiamato cluster nella console).

aws elasticache test-failover /
    --replication-group-id "mycluster" /
    --node-group-id "0001"

Output:

{
    "ReplicationGroup": {
        "ReplicationGroupId": "mycluster",
        "Description": "My Cluster",
        "Status": "available",
        "PendingModifiedValues": {},
        "MemberClusters": [
            "mycluster-0001-001",
            "mycluster-0001-002",
            "mycluster-0001-003",
            "mycluster-0002-001",
            "mycluster-0002-002",
            "mycluster-0002-003",
            "mycluster-0003-001",
            "mycluster-0003-002",
            "mycluster-0003-003"
        ],
        "NodeGroups": [
            {
                "NodeGroupId": "0001",
                "Status": "available",
                "Slots": "0-5461",
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "mycluster-0001-001",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2b"
                    },
                    {
                        "CacheClusterId": "mycluster-0001-002",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2a"
                    },
                    {
                        "CacheClusterId": "mycluster-0001-003",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    }
                ]
            },
            {
                "NodeGroupId": "0002",
                "Status": "available",
                "Slots": "5462-10922",
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "mycluster-0002-001",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2a"
                    },
                    {
                        "CacheClusterId": "mycluster-0002-002",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2b"
                    },
                    {
                        "CacheClusterId": "mycluster-0002-003",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    }
                ]
            },
            {
                "NodeGroupId": "0003",
                "Status": "available",
                "Slots": "10923-16383",
                "NodeGroupMembers": [
                    {
                        "CacheClusterId": "mycluster-0003-001",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2c"
                    },
                    {
                        "CacheClusterId": "mycluster-0003-002",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2b"
                    },
                    {
                        "CacheClusterId": "mycluster-0003-003",
                        "CacheNodeId": "0001",
                        "PreferredAvailabilityZone": "us-west-2a"
                    }
                ]
            }
        ],
        "AutomaticFailover": "enabled",
        "ConfigurationEndpoint": {
            "Address": "mycluster.xxxxih.clustercfg.usw2.cache.amazonaws.com",
            "Port": 6379
        },
        "SnapshotRetentionLimit": 1,
        "SnapshotWindow": "13:00-14:00",
        "ClusterEnabled": true,
        "CacheNodeType": "cache.r5.large",
        "TransitEncryptionEnabled": false,
        "AtRestEncryptionEnabled": false
    }
}