[ aws . elasticache ]
describe-cache-clusters
Description
Returns information about all provisioned clusters if no cluster identifier is specified, or about a specific cache cluster if a cluster identifier is supplied.
By default, abbreviated information about the clusters is returned. You can use the optional ShowCacheNodeInfo flag to retrieve detailed information about the cache nodes associated with the clusters. These details include the DNS address and port for the cache node endpoint.
If the cluster is in the creating state, only cluster-level information is displayed until all of the nodes are successfully provisioned.
If the cluster is in the deleting state, only cluster-level information is displayed.
If cache nodes are currently being added to the cluster, node endpoint information and creation time for the additional nodes are not displayed until they are completely provisioned. When the cluster state is available , the cluster is ready for use.
If cache nodes are currently being removed from the cluster, no endpoint information for the removed nodes is displayed.
See also: AWS API Documentation
describe-cache-clusters is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: CacheClusters
Synopsis
describe-cache-clusters
[--cache-cluster-id <value>]
[--show-cache-node-info | --no-show-cache-node-info]
[--show-cache-clusters-not-in-replication-groups | --no-show-cache-clusters-not-in-replication-groups]
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]
Options
--cache-cluster-id (string)
--show-cache-node-info | --no-show-cache-node-info (boolean)
DescribeCacheCluster request to retrieve information about the individual cache nodes.--show-cache-clusters-not-in-replication-groups | --no-show-cache-clusters-not-in-replication-groups (boolean)
DescribeCacheCluster request to show only nodes (API/CLI: clusters) that are not members of a replication group. In practice, this means Memcached and single node Valkey or Redis OSS clusters.--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.
--starting-token (string)
A token to specify where to start paginating. This is the NextToken from a previously truncated response.
For usage examples, see Pagination in the AWS Command Line Interface User Guide .
--page-size (integer)
The size of each page to get in the AWS service call. This does not affect the number of items returned in the command’s output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.
For usage examples, see Pagination in the AWS Command Line Interface User Guide .
--max-items (integer)
The total number of items to return in the command’s output. If the total number of items available is more than the value specified, a NextToken is provided in the command’s output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.
For usage examples, see Pagination in the AWS Command Line Interface User Guide .
--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.
Global Options
--debug (boolean)
Turn on debug logging.
--endpoint-url (string)
Override command’s default URL with the given URL.
--no-verify-ssl (boolean)
By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.
--no-paginate (boolean)
Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.
--output (string)
The formatting style for command output.
- json
- text
- table
- yaml
- yaml-stream
--query (string)
A JMESPath query to use in filtering the response data.
--profile (string)
Use a specific profile from your credential file.
--region (string)
The region to use. Overrides config/env settings.
--version (string)
Display the version of this tool.
--color (string)
Turn on/off color output.
- on
- off
- auto
--no-sign-request (boolean)
Do not sign requests. Credentials will not be loaded if this argument is provided.
--ca-bundle (string)
The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.
--cli-read-timeout (int)
The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.
--cli-connect-timeout (int)
The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.
--cli-binary-format (string)
The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.
- base64
- raw-in-base64-out
--no-cli-pager (boolean)
Disable cli pager for output.
--cli-auto-prompt (boolean)
Automatically prompt for CLI input parameters.
--no-cli-auto-prompt (boolean)
Disable automatically prompt for CLI input parameters.
Examples
Note
To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.
Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .
To describe a cache cluster
The following describe-cache-clusters example describes a cache cluster.
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"
}
]
}
]
}
For more information, see Managing Clusters in the Elasticache User Guide.
Output
Marker -> (string)
CacheClusters -> (list)
A list of clusters. Each item in the list contains detailed information about one cluster.
(structure)
Contains all of the attributes of a specific cluster.
CacheClusterId -> (string)
ConfigurationEndpoint -> (structure)
Represents a Memcached cluster endpoint which can be used by an application to connect to any node in the cluster. The configuration endpoint will always have .cfg in it.
Example: mem-3.9dvc4r.cfg.usw2.cache.amazonaws.com:11211
Address -> (string)
Port -> (integer)
ClientDownloadLandingPage -> (string)
CacheNodeType -> (string)
The name of the compute and memory capacity node type for the cluster.
The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.
-
General purpose:
- Current generation: M7g node types :
cache.m7g.large,cache.m7g.xlarge,cache.m7g.2xlarge,cache.m7g.4xlarge,cache.m7g.8xlarge,cache.m7g.12xlarge,cache.m7g.16xlarge
Note
For region availability, see Supported Node Types
M6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward):
cache.m6g.large,cache.m6g.xlarge,cache.m6g.2xlarge,cache.m6g.4xlarge,cache.m6g.8xlarge,cache.m6g.12xlarge,cache.m6g.16xlargeM5 node types:cache.m5.large,cache.m5.xlarge,cache.m5.2xlarge,cache.m5.4xlarge,cache.m5.12xlarge,cache.m5.24xlargeM4 node types:cache.m4.large,cache.m4.xlarge,cache.m4.2xlarge,cache.m4.4xlarge,cache.m4.10xlargeT4g node types (available only for Redis OSS engine version 5.0.6 onward and Memcached engine version 1.5.16 onward):cache.t4g.micro,cache.t4g.small,cache.t4g.mediumT3 node types:cache.t3.micro,cache.t3.small,cache.t3.mediumT2 node types:cache.t2.micro,cache.t2.small,cache.t2.medium- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) T1 node types:
cache.t1.microM1 node types:cache.m1.small,cache.m1.medium,cache.m1.large,cache.m1.xlargeM3 node types:cache.m3.medium,cache.m3.large,cache.m3.xlarge,cache.m3.2xlarge
- Current generation: M7g node types :
-
Compute optimized:
- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) C1 node types:
cache.c1.xlarge
- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) C1 node types:
-
Memory optimized:
- Current generation: R7g node types :
cache.r7g.large,cache.r7g.xlarge,cache.r7g.2xlarge,cache.r7g.4xlarge,cache.r7g.8xlarge,cache.r7g.12xlarge,cache.r7g.16xlarge
Note
For region availability, see Supported Node Types
R6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward):
cache.r6g.large,cache.r6g.xlarge,cache.r6g.2xlarge,cache.r6g.4xlarge,cache.r6g.8xlarge,cache.r6g.12xlarge,cache.r6g.16xlargeR5 node types:cache.r5.large,cache.r5.xlarge,cache.r5.2xlarge,cache.r5.4xlarge,cache.r5.12xlarge,cache.r5.24xlargeR4 node types:cache.r4.large,cache.r4.xlarge,cache.r4.2xlarge,cache.r4.4xlarge,cache.r4.8xlarge,cache.r4.16xlarge- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) M2 node types:
cache.m2.xlarge,cache.m2.2xlarge,cache.m2.4xlargeR3 node types:cache.r3.large,cache.r3.xlarge,cache.r3.2xlarge,cache.r3.4xlarge,cache.r3.8xlarge
- Current generation: R7g node types :
- All current generation instance types are created in Amazon VPC by default.
- Valkey or Redis OSS append-only files (AOF) are not supported for T1 or T2 instances.
- Valkey or Redis OSS Multi-AZ with automatic failover is not supported on T1 instances.
- The configuration variables
appendonlyandappendfsyncare not supported on Valkey, or on Redis OSS version 2.8.22 and later.
Engine -> (string)
memcached or redis ) to be used for this cluster.EngineVersion -> (string)
CacheClusterStatus -> (string)
available , creating , deleted , deleting , incompatible-network , modifying , rebooting cluster nodes , restore-failed , or snapshotting .NumCacheNodes -> (integer)
The number of cache nodes in the cluster.
For clusters running Valkey or Redis OSS, this value must be 1. For clusters running Memcached, this value must be between 1 and 40.
PreferredAvailabilityZone -> (string)
PreferredOutpostArn -> (string)
CacheClusterCreateTime -> (timestamp)
PreferredMaintenanceWindow -> (string)
Specifies the weekly time range during which maintenance on the cluster is performed. It is specified as a range in the format ddd:hh24:mi-ddd:hh24:mi (24H Clock UTC). The minimum maintenance window is a 60 minute period.
Valid values for ddd are:
sunmontuewedthufrisat
Example: sun:23:00-mon:01:30
PendingModifiedValues -> (structure)
A group of settings that are applied to the cluster in the future, or that are currently being applied.
NumCacheNodes -> (integer)
The new number of cache nodes for the cluster.
For clusters running Valkey or Redis OSS, this value must be 1. For clusters running Memcached, this value must be between 1 and 40.
CacheNodeIdsToRemove -> (list)
A list of cache node IDs that are being removed (or will be removed) from the cluster. A node ID is a 4-digit numeric identifier (0001, 0002, etc.).
(string)
EngineVersion -> (string)
CacheNodeType -> (string)
AuthTokenStatus -> (string)
LogDeliveryConfigurations -> (list)
The log delivery configurations being modified
(structure)
The log delivery configurations being modified
LogType -> (string)
DestinationType -> (string)
DestinationDetails -> (structure)
Configuration details of either a CloudWatch Logs destination or Kinesis Data Firehose destination.
CloudWatchLogsDetails -> (structure)
The configuration details of the CloudWatch Logs destination.
LogGroup -> (string)
KinesisFirehoseDetails -> (structure)
The configuration details of the Kinesis Data Firehose destination.
DeliveryStream -> (string)
LogFormat -> (string)
TransitEncryptionEnabled -> (boolean)
TransitEncryptionMode -> (string)
ScaleConfig -> (structure)
The scaling configuration changes that are pending for the Memcached cluster.
ScalePercentage -> (integer)
ScaleIntervalMinutes -> (integer)
NotificationConfiguration -> (structure)
Describes a notification topic and its status. Notification topics are used for publishing ElastiCache events to subscribers using Amazon Simple Notification Service (SNS).
TopicArn -> (string)
TopicStatus -> (string)
CacheSecurityGroups -> (list)
A list of cache security group elements, composed of name and status sub-elements.
(structure)
Represents a cluster’s status within a particular cache security group.
CacheSecurityGroupName -> (string)
Status -> (string)
CacheParameterGroup -> (structure)
Status of the cache parameter group.
CacheParameterGroupName -> (string)
ParameterApplyStatus -> (string)
CacheNodeIdsToReboot -> (list)
A list of the cache node IDs which need to be rebooted for parameter changes to be applied. A node ID is a numeric identifier (0001, 0002, etc.).
(string)
CacheSubnetGroupName -> (string)
CacheNodes -> (list)
A list of cache nodes that are members of the cluster.
(structure)
Represents an individual cache node within a cluster. Each cache node runs its own instance of the cluster’s protocol-compliant caching software - either Memcached, Valkey or Redis OSS.
The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.
-
General purpose:
- Current generation: M7g node types :
cache.m7g.large,cache.m7g.xlarge,cache.m7g.2xlarge,cache.m7g.4xlarge,cache.m7g.8xlarge,cache.m7g.12xlarge,cache.m7g.16xlarge
Note
For region availability, see Supported Node Types
M6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward):
cache.m6g.large,cache.m6g.xlarge,cache.m6g.2xlarge,cache.m6g.4xlarge,cache.m6g.8xlarge,cache.m6g.12xlarge,cache.m6g.16xlargeM5 node types:cache.m5.large,cache.m5.xlarge,cache.m5.2xlarge,cache.m5.4xlarge,cache.m5.12xlarge,cache.m5.24xlargeM4 node types:cache.m4.large,cache.m4.xlarge,cache.m4.2xlarge,cache.m4.4xlarge,cache.m4.10xlargeT4g node types (available only for Redis OSS engine version 5.0.6 onward and Memcached engine version 1.5.16 onward):cache.t4g.micro,cache.t4g.small,cache.t4g.mediumT3 node types:cache.t3.micro,cache.t3.small,cache.t3.mediumT2 node types:cache.t2.micro,cache.t2.small,cache.t2.medium- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) T1 node types:
cache.t1.microM1 node types:cache.m1.small,cache.m1.medium,cache.m1.large,cache.m1.xlargeM3 node types:cache.m3.medium,cache.m3.large,cache.m3.xlarge,cache.m3.2xlarge
- Current generation: M7g node types :
-
Compute optimized:
- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) C1 node types:
cache.c1.xlarge
- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) C1 node types:
-
Memory optimized:
- Current generation: R7g node types :
cache.r7g.large,cache.r7g.xlarge,cache.r7g.2xlarge,cache.r7g.4xlarge,cache.r7g.8xlarge,cache.r7g.12xlarge,cache.r7g.16xlarge
Note
For region availability, see Supported Node Types
R6g node types (available only for Redis OSS engine version 5.0.6 onward and for Memcached engine version 1.5.16 onward):
cache.r6g.large,cache.r6g.xlarge,cache.r6g.2xlarge,cache.r6g.4xlarge,cache.r6g.8xlarge,cache.r6g.12xlarge,cache.r6g.16xlargeR5 node types:cache.r5.large,cache.r5.xlarge,cache.r5.2xlarge,cache.r5.4xlarge,cache.r5.12xlarge,cache.r5.24xlargeR4 node types:cache.r4.large,cache.r4.xlarge,cache.r4.2xlarge,cache.r4.4xlarge,cache.r4.8xlarge,cache.r4.16xlarge- Previous generation: (not recommended. Existing clusters are still supported but creation of new clusters is not supported for these types.) M2 node types:
cache.m2.xlarge,cache.m2.2xlarge,cache.m2.4xlargeR3 node types:cache.r3.large,cache.r3.xlarge,cache.r3.2xlarge,cache.r3.4xlarge,cache.r3.8xlarge
- Current generation: R7g node types :
- All current generation instance types are created in Amazon VPC by default.
- Valkey or Redis OSS append-only files (AOF) are not supported for T1 or T2 instances.
- Valkey or Redis OSS Multi-AZ with automatic failover is not supported on T1 instances.
- The configuration variables
appendonlyandappendfsyncare not supported on Valkey, or on Redis OSS version 2.8.22 and later.
CacheNodeId -> (string)
CacheNodeStatus -> (string)
available , creating , rebooting , or deleting .CacheNodeCreateTime -> (timestamp)
Endpoint -> (structure)
The hostname for connecting to this cache node.
Address -> (string)
Port -> (integer)
ParameterGroupStatus -> (string)
SourceCacheNodeId -> (string)
CustomerAvailabilityZone -> (string)
CustomerOutpostArn -> (string)
AutoMinorVersionUpgrade -> (boolean)
SecurityGroups -> (list)
A list of VPC Security Groups associated with the cluster.
(structure)
Represents a single cache security group and its status.
SecurityGroupId -> (string)
Status -> (string)
ReplicationGroupId -> (string)
SnapshotRetentionLimit -> (integer)
The number of days for which ElastiCache retains automatic cluster snapshots before deleting them. For example, if you set SnapshotRetentionLimit to 5, a snapshot that was taken today is retained for 5 days before being deleted.
Warning
If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.SnapshotWindow -> (string)
The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of your cluster.
Example: 05:00-09:00
AuthTokenEnabled -> (boolean)
A flag that enables using an AuthToken (password) when issuing Valkey or Redis OSS commands.
Default: false
AuthTokenLastModifiedDate -> (timestamp)
TransitEncryptionEnabled -> (boolean)
A flag that enables in-transit encryption when set to true .
3.2.6 , 4.x or later.Default: false
AtRestEncryptionEnabled -> (boolean)
A flag that enables encryption at-rest when set to true .
You cannot modify the value of AtRestEncryptionEnabled after the cluster is created. To enable at-rest encryption on a cluster you must set AtRestEncryptionEnabled to true when you create a cluster.
3.2.6 , 4.x or later.Default: false
ARN -> (string)
ReplicationGroupLogDeliveryEnabled -> (boolean)
LogDeliveryConfigurations -> (list)
Returns the destination, format and type of the logs.
(structure)
Returns the destination, format and type of the logs.
LogType -> (string)
DestinationType -> (string)
cloudwatch-logs or kinesis-firehose .DestinationDetails -> (structure)
Configuration details of either a CloudWatch Logs destination or Kinesis Data Firehose destination.
CloudWatchLogsDetails -> (structure)
The configuration details of the CloudWatch Logs destination.
LogGroup -> (string)
KinesisFirehoseDetails -> (structure)
The configuration details of the Kinesis Data Firehose destination.
DeliveryStream -> (string)
LogFormat -> (string)
Status -> (string)
enabling | disabling | modifying | active | error
Message -> (string)
NetworkType -> (string)
ipv4 | ipv6 | dual_stack . IPv6 is supported for workloads using Valkey 7.2 and above, Redis OSS engine version 6.2 7.1 or Memcached engine version 1.6.6 and above on all instances built on the Nitro system .IpDiscovery -> (string)
ipv4 | ipv6 . IPv6 is supported for workloads using Valkey 7.2 and above, Redis OSS engine version 6.2 to 7.1 or Memcached engine version 1.6.6 and above on all instances built on the Nitro system .TransitEncryptionMode -> (string)
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