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decrease-replica-count.rst
**To decrease replica count** The following ``decrease-replica-count`` example dynamically decreases the number of replics in a Redis (cluster mode disabled) replication group or the number of replica nodes in one or more node groups (shards) of a Redis (cluster mode enabled) replication group. This operation is performed with no cluster downtime. :: 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 } } For more information, see `Changing the Number of Replicas
`__ in the *Elasticache User Guide*.