2016/10/12 - Amazon ElastiCache - 9 updated api methods
Changes Elasticache is launching a new major engine release of Redis, 3.2 (providing stability updates and new command sets over 2.8), as well as ElasticSupport for enabling Redis Cluster in 3.2, which provides support for multiple node groups to horizontally scale data, as well as superior engine failover capabilities.
{'Snapshot': {'AutomaticFailover': 'enabled | disabled | enabling | disabling',
'NodeSnapshots': {'CacheClusterId': 'string',
'NodeGroupConfiguration': {'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': ['string'],
'ReplicaCount': 'integer',
'Slots': 'string'},
'NodeGroupId': 'string'},
'NumNodeGroups': 'integer',
'ReplicationGroupDescription': 'string',
'ReplicationGroupId': 'string'}}
Makes a copy of an existing snapshot.
Note
This operation is valid for Redis only.
Warning
Users or groups that have permissions to use the CopySnapshot operation can create their own Amazon S3 buckets and copy snapshots to it. To control access to your snapshots, use an IAM policy to control who has the ability to use the CopySnapshot operation. For more information about using IAM to control the use of ElastiCache operations, see Exporting Snapshots and Authentication & Access Control .
You could receive the following error messages.
Error Messages
Error Message: The S3 bucket %s is outside of the region. Solution: Create an Amazon S3 bucket in the same region as your snapshot. For more information, see Step 1: Create an Amazon S3 Bucket in the ElastiCache User Guide.
Error Message: The S3 bucket %s does not exist. Solution: Create an Amazon S3 bucket in the same region as your snapshot. For more information, see Step 1: Create an Amazon S3 Bucket in the ElastiCache User Guide.
Error Message: The S3 bucket %s is not owned by the authenticated user. Solution: Create an Amazon S3 bucket in the same region as your snapshot. For more information, see Step 1: Create an Amazon S3 Bucket in the ElastiCache User Guide.
Error Message: The authenticated user does not have sufficient permissions to perform the desired activity. Solution: Contact your system administrator to get the needed permissions.
Error Message: The S3 bucket %s already contains an object with key %s. Solution: Give the TargetSnapshotName a new and unique value. If exporting a snapshot, you could alternatively create a new Amazon S3 bucket and use this same value for TargetSnapshotName .
Error Message: ElastiCache has not been granted READ permissions %s on the S3 Bucket. Solution: Add List and Read permissions on the bucket. For more information, see Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket in the ElastiCache User Guide.
Error Message: ElastiCache has not been granted WRITE permissions %s on the S3 Bucket. Solution: Add Upload/Delete permissions on the bucket. For more information, see Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket in the ElastiCache User Guide.
Error Message: ElastiCache has not been granted READ_ACP permissions %s on the S3 Bucket. Solution: Add View Permissions on the bucket. For more information, see Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket in the ElastiCache User Guide.
Request Syntax
client.copy_snapshot(
SourceSnapshotName='string',
TargetSnapshotName='string',
TargetBucket='string'
)
string
[REQUIRED]
The name of an existing snapshot from which to make a copy.
string
[REQUIRED]
A name for the snapshot copy. ElastiCache does not permit overwriting a snapshot, therefore this name must be unique within its context - ElastiCache or an Amazon S3 bucket if exporting.
string
The Amazon S3 bucket to which the snapshot is exported. This parameter is used only when exporting a snapshot for external access.
When using this parameter to export a snapshot, be sure Amazon ElastiCache has the needed permissions to this S3 bucket. For more information, see Step 2: Grant ElastiCache Access to Your Amazon S3 Bucket in the Amazon ElastiCache User Guide .
For more information, see Exporting a Snapshot in the Amazon ElastiCache User Guide .
dict
Response Syntax
{
'Snapshot': {
'SnapshotName': 'string',
'ReplicationGroupId': 'string',
'ReplicationGroupDescription': 'string',
'CacheClusterId': 'string',
'SnapshotStatus': 'string',
'SnapshotSource': 'string',
'CacheNodeType': 'string',
'Engine': 'string',
'EngineVersion': 'string',
'NumCacheNodes': 123,
'PreferredAvailabilityZone': 'string',
'CacheClusterCreateTime': datetime(2015, 1, 1),
'PreferredMaintenanceWindow': 'string',
'TopicArn': 'string',
'Port': 123,
'CacheParameterGroupName': 'string',
'CacheSubnetGroupName': 'string',
'VpcId': 'string',
'AutoMinorVersionUpgrade': True|False,
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string',
'NumNodeGroups': 123,
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'NodeSnapshots': [
{
'CacheClusterId': 'string',
'NodeGroupId': 'string',
'CacheNodeId': 'string',
'NodeGroupConfiguration': {
'Slots': 'string',
'ReplicaCount': 123,
'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': [
'string',
]
},
'CacheSize': 'string',
'CacheNodeCreateTime': datetime(2015, 1, 1),
'SnapshotCreateTime': datetime(2015, 1, 1)
},
]
}
}
Response Structure
(dict) --
Snapshot (dict) --
Represents a copy of an entire Redis cache cluster as of the time when the snapshot was taken.
SnapshotName (string) --
The name of a snapshot. For an automatic snapshot, the name is system-generated. For a manual snapshot, this is the user-provided name.
ReplicationGroupId (string) --
The unique identifier of the source replication group.
ReplicationGroupDescription (string) --
A description of the source replication group.
CacheClusterId (string) --
The user-supplied identifier of the source cache cluster.
SnapshotStatus (string) --
The status of the snapshot. Valid values: creating | available | restoring | copying | deleting .
SnapshotSource (string) --
Indicates whether the snapshot is from an automatic backup (automated ) or was created manually (manual ).
CacheNodeType (string) --
The name of the compute and memory capacity node type for the source cache cluster.
Valid node types are as follows:
General purpose:
Current generation: cache.t2.micro , cache.t2.small , cache.t2.medium , cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge , cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge
Previous generation: cache.t1.micro , cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge
Compute optimized: cache.c1.xlarge
Memory optimized:
Current generation: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge
Previous generation: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge
Notes:
All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).
Redis backup/restore is not supported for Redis (cluster mode disabled) T1 and T2 instances. Backup/restore is supported on Redis (cluster mode enabled) T2 instances.
Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.
For a complete listing of node types and specifications, see Amazon ElastiCache Product Features and Details and either Cache Node Type-Specific Parameters for Memcached or Cache Node Type-Specific Parameters for Redis .
Engine (string) --
The name of the cache engine (memcached or redis ) used by the source cache cluster.
EngineVersion (string) --
The version of the cache engine version that is used by the source cache cluster.
NumCacheNodes (integer) --
The number of cache nodes in the source cache cluster.
For clusters running Redis, this value must be 1. For clusters running Memcached, this value must be between 1 and 20.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the source cache cluster is located.
CacheClusterCreateTime (datetime) --
The date and time when the source cache cluster was created.
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:
sun
mon
tue
wed
thu
fri
sat
Example: sun:23:00-mon:01:30
TopicArn (string) --
The Amazon Resource Name (ARN) for the topic used by the source cache cluster for publishing notifications.
Port (integer) --
The port number used by each cache nodes in the source cache cluster.
CacheParameterGroupName (string) --
The cache parameter group that is associated with the source cache cluster.
CacheSubnetGroupName (string) --
The name of the cache subnet group associated with the source cache cluster.
VpcId (string) --
The Amazon Virtual Private Cloud identifier (VPC ID) of the cache subnet group for the source cache cluster.
AutoMinorVersionUpgrade (boolean) --
This parameter is currently disabled.
SnapshotRetentionLimit (integer) --
For an automatic snapshot, the number of days for which ElastiCache retains the snapshot before deleting it.
For manual snapshots, this field reflects the SnapshotRetentionLimit for the source cache cluster when the snapshot was created. This field is otherwise ignored: Manual snapshots do not expire, and can only be deleted using the DeleteSnapshot operation.
Important If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.
SnapshotWindow (string) --
The daily time range during which ElastiCache takes daily snapshots of the source cache cluster.
NumNodeGroups (integer) --
The number of node groups (shards) in this snapshot. When restoring from a snapshot, the number of node groups (shards) in the snapshot and in the restored replication group must be the same.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for the source replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
NodeSnapshots (list) --
A list of the cache nodes in the source cache cluster.
(dict) --
Represents an individual cache node in a snapshot of a cache cluster.
CacheClusterId (string) --
A unique identifier for the source cache cluster.
NodeGroupId (string) --
A unique identifier for the source node group (shard).
CacheNodeId (string) --
The cache node identifier for the node in the source cache cluster.
NodeGroupConfiguration (dict) --
The configuration for the source node group (shard).
Slots (string) --
A string that specifies the keyspaces as a series of comma separated values. Keyspaces are 0 to 16,383. The string is in the format startkey-endkey .
Example: "0-3999"
ReplicaCount (integer) --
The number of read replica nodes in this node group (shard).
PrimaryAvailabilityZone (string) --
The Availability Zone where the primary node of this node group (shard) is launched.
ReplicaAvailabilityZones (list) --
A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this list must match the value of ReplicaCount or ReplicasPerNodeGroup if not specified.
(string) --
CacheSize (string) --
The size of the cache on the source cache node.
CacheNodeCreateTime (datetime) --
The date and time when the cache node was created in the source cache cluster.
SnapshotCreateTime (datetime) --
The date and time when the source node's metadata and cache data set was obtained for the snapshot.
{'NodeGroupConfiguration': [{'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': ['string'],
'ReplicaCount': 'integer',
'Slots': 'string'}],
'NumNodeGroups': 'integer',
'ReplicasPerNodeGroup': 'integer'}
Response {'ReplicationGroup': {'ConfigurationEndpoint': {'Address': 'string',
'Port': 'integer'},
'NodeGroups': {'Slots': 'string'},
'SnapshotRetentionLimit': 'integer',
'SnapshotWindow': 'string'}}
Creates a Redis (cluster mode disabled) or a Redis (cluster mode enabled) replication group.
A Redis (cluster mode disabled) replication group is a collection of cache clusters, where one of the cache clusters is a read/write primary and the others are read-only replicas. Writes to the primary are asynchronously propagated to the replicas.
A Redis (cluster mode enabled) replication group is a collection of 1 to 15 node groups (shards). Each node group (shard) has one read/write primary node and up to 5 read-only replica nodes. Writes to the primary are asynchronously propagated to the replicas. Redis (cluster mode enabled) replication groups partition the data across node groups (shards).
When a Redis (cluster mode disabled) replication group has been successfully created, you can add one or more read replicas to it, up to a total of 5 read replicas. You cannot alter a Redis (cluster mode enabled) replication group once it has been created.
Note
This operation is valid for Redis only.
Request Syntax
client.create_replication_group(
ReplicationGroupId='string',
ReplicationGroupDescription='string',
PrimaryClusterId='string',
AutomaticFailoverEnabled=True|False,
NumCacheClusters=123,
PreferredCacheClusterAZs=[
'string',
],
NumNodeGroups=123,
ReplicasPerNodeGroup=123,
NodeGroupConfiguration=[
{
'Slots': 'string',
'ReplicaCount': 123,
'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': [
'string',
]
},
],
CacheNodeType='string',
Engine='string',
EngineVersion='string',
CacheParameterGroupName='string',
CacheSubnetGroupName='string',
CacheSecurityGroupNames=[
'string',
],
SecurityGroupIds=[
'string',
],
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
SnapshotArns=[
'string',
],
SnapshotName='string',
PreferredMaintenanceWindow='string',
Port=123,
NotificationTopicArn='string',
AutoMinorVersionUpgrade=True|False,
SnapshotRetentionLimit=123,
SnapshotWindow='string'
)
string
[REQUIRED]
The replication group identifier. This parameter is stored as a lowercase string.
Constraints:
A name must contain from 1 to 20 alphanumeric characters or hyphens.
The first character must be a letter.
A name cannot end with a hyphen or contain two consecutive hyphens.
string
[REQUIRED]
A user-created description for the replication group.
string
The identifier of the cache cluster that serves as the primary for this replication group. This cache cluster must already exist and have a status of available .
This parameter is not required if NumCacheClusters , NumNodeGroups , or ReplicasPerNodeGroup is specified.
boolean
Specifies whether a read-only replica is automatically promoted to read/write primary if the existing primary fails.
If true , Multi-AZ is enabled for this replication group. If false , Multi-AZ is disabled for this replication group.
AutomaticFailoverEnabled must be enabled for Redis (cluster mode enabled) replication groups.
Default: false
Note
ElastiCache Multi-AZ replication groups is not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled): T1 and T2 node types. Redis (cluster mode enabled): T2 node types.
integer
The number of clusters this replication group initially has.
This parameter is not used if there is more than one node group (shard). You should use ReplicasPerNodeGroup instead.
If Multi-AZ is enabled , the value of this parameter must be at least 2.
The maximum permitted value for NumCacheClusters is 6 (primary plus 5 replicas). If you need to exceed this limit, fill out the ElastiCache Limit Increase Request form at http://aws.amazon.com/contact-us/elasticache-node-limit-request/ .
list
A list of EC2 Availability Zones in which the replication group's cache clusters are created. The order of the Availability Zones in the list is the order in which clusters are allocated. The primary cluster is created in the first AZ in the list.
This parameter is not used if there is more than one node group (shard). You should use NodeGroupConfiguration instead.
Note
If you are creating your replication group in an Amazon VPC (recommended), you can only locate cache clusters in Availability Zones associated with the subnets in the selected subnet group.
The number of Availability Zones listed must equal the value of NumCacheClusters .
Default: system chosen Availability Zones.
(string) --
integer
An optional parameter that specifies the number of node groups (shards) for this Redis (cluster mode enabled) replication group. For Redis (cluster mode disabled) either omit this parameter or set it to 1.
Default: 1
integer
An optional parameter that specifies the number of replica nodes in each node group (shard). Valid values are 0 to 5.
list
A list of node group (shard) configuration options. Each node group (shard) configuration has the following: Slots, PrimaryAvailabilityZone, ReplicaAvailabilityZones, ReplicaCount.
If you're creating a Redis (cluster mode disabled) or a Redis (cluster mode enabled) replication group, you can use this parameter to configure one node group (shard) or you can omit this parameter.
(dict) --
node group (shard) configuration options. Each node group (shard) configuration has the following: Slots , PrimaryAvailabilityZone , ReplicaAvailabilityZones , ReplicaCount .
Slots (string) --
A string that specifies the keyspaces as a series of comma separated values. Keyspaces are 0 to 16,383. The string is in the format startkey-endkey .
Example: "0-3999"
ReplicaCount (integer) --
The number of read replica nodes in this node group (shard).
PrimaryAvailabilityZone (string) --
The Availability Zone where the primary node of this node group (shard) is launched.
ReplicaAvailabilityZones (list) --
A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this list must match the value of ReplicaCount or ReplicasPerNodeGroup if not specified.
(string) --
string
The compute and memory capacity of the nodes in the node group (shard).
Valid node types are as follows:
General purpose:
Current generation: cache.t2.micro , cache.t2.small , cache.t2.medium , cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge , cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge
Previous generation: cache.t1.micro , cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge
Compute optimized: cache.c1.xlarge
Memory optimized:
Current generation: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge
Previous generation: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge
Notes:
All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).
Redis backup/restore is not supported for Redis (cluster mode disabled) T1 and T2 instances. Backup/restore is supported on Redis (cluster mode enabled) T2 instances.
Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.
For a complete listing of node types and specifications, see Amazon ElastiCache Product Features and Details and either Cache Node Type-Specific Parameters for Memcached or Cache Node Type-Specific Parameters for Redis .
string
The name of the cache engine to be used for the cache clusters in this replication group.
string
The version number of the cache engine to be used for the cache clusters in this replication group. To view the supported cache engine versions, use the DescribeCacheEngineVersions operation.
Important: You can upgrade to a newer engine version (see Selecting a Cache Engine and Version ) in the ElastiCache User Guide , but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing cache cluster or replication group and create it anew with the earlier engine version.
string
The name of the parameter group to associate with this replication group. If this argument is omitted, the default cache parameter group for the specified engine is used.
If you are running Redis version 3.2.4 or later, only one node group (shard), and want to use a default parameter group, we recommend that you specify the parameter group by name.
To create a Redis (cluster mode disabled) replication group, use CacheParameterGroupName=default.redis3.2 .
To create a Redis (cluster mode enabled) replication group, use CacheParameterGroupName=default.redis3.2.cluster.on .
string
The name of the cache subnet group to be used for the replication group.
Warning
If you're going to launch your cluster in an Amazon VPC, you need to create a subnet group before you start creating a cluster. For more information, see Subnets and Subnet Groups .
list
A list of cache security group names to associate with this replication group.
(string) --
list
One or more Amazon VPC security groups associated with this replication group.
Use this parameter only when you are creating a replication group in an Amazon Virtual Private Cloud (Amazon VPC).
(string) --
list
A list of cost allocation tags to be added to this resource. A tag is a key-value pair. A tag key must be accompanied by a tag value.
(dict) --
A cost allocation Tag that can be added to an ElastiCache cluster or replication group. Tags are composed of a Key/Value pair. A tag with a null Value is permitted.
Key (string) --
The key for the tag.
Value (string) --
The tag's value. May not be null.
list
A list of Amazon Resource Names (ARN) that uniquely identify the Redis RDB snapshot files stored in Amazon S3. The snapshot files are used to populate the replication group. The Amazon S3 object name in the ARN cannot contain any commas. The list must match the number of node groups (shards) in the replication group, which means you cannot repartition.
Note
This parameter is only valid if the Engine parameter is redis .
Example of an Amazon S3 ARN: arn:aws:s3:::my_bucket/snapshot1.rdb
(string) --
string
The name of a snapshot from which to restore data into the new replication group. The snapshot status changes to restoring while the new replication group is being created.
Note
This parameter is only valid if the Engine parameter is redis .
string
Specifies the weekly time range during which maintenance on the cache 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:
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:
sun
mon
tue
wed
thu
fri
sat
Example: sun:23:00-mon:01:30
integer
The port number on which each member of the replication group accepts connections.
string
The Amazon Resource Name (ARN) of the Amazon Simple Notification Service (SNS) topic to which notifications are sent.
Note
The Amazon SNS topic owner must be the same as the cache cluster owner.
boolean
This parameter is currently disabled.
integer
The number of days for which ElastiCache retains automatic 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.
Note
This parameter is only valid if the Engine parameter is redis .
Default: 0 (i.e., automatic backups are disabled for this cache cluster).
string
The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of your node group (shard).
Example: 05:00-09:00
If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.
Note
This parameter is only valid if the Engine parameter is redis .
dict
Response Syntax
{
'ReplicationGroup': {
'ReplicationGroupId': 'string',
'Description': 'string',
'Status': 'string',
'PendingModifiedValues': {
'PrimaryClusterId': 'string',
'AutomaticFailoverStatus': 'enabled'|'disabled'
},
'MemberClusters': [
'string',
],
'NodeGroups': [
{
'NodeGroupId': 'string',
'Status': 'string',
'PrimaryEndpoint': {
'Address': 'string',
'Port': 123
},
'Slots': 'string',
'NodeGroupMembers': [
{
'CacheClusterId': 'string',
'CacheNodeId': 'string',
'ReadEndpoint': {
'Address': 'string',
'Port': 123
},
'PreferredAvailabilityZone': 'string',
'CurrentRole': 'string'
},
]
},
],
'SnapshottingClusterId': 'string',
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'ConfigurationEndpoint': {
'Address': 'string',
'Port': 123
},
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string'
}
}
Response Structure
(dict) --
ReplicationGroup (dict) --
Contains all of the attributes of a specific Redis replication group.
ReplicationGroupId (string) --
The identifier for the replication group.
Description (string) --
The description of the replication group.
Status (string) --
The current state of this replication group - creating , available , etc.
PendingModifiedValues (dict) --
A group of settings to be applied to the replication group, either immediately or during the next maintenance window.
PrimaryClusterId (string) --
The primary cluster ID that is applied immediately (if --apply-immediately was specified), or during the next maintenance window.
AutomaticFailoverStatus (string) --
Indicates the status of Multi-AZ for this Redis replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
MemberClusters (list) --
The names of all the cache clusters that are part of this replication group.
(string) --
NodeGroups (list) --
A single element list with information about the nodes in the replication group.
(dict) --
Represents a collection of cache nodes in a replication group. One node in the node group is the read/write Primary node. All the other nodes are read-only Replica nodes.
NodeGroupId (string) --
The identifier for the node group (shard). A Redis (cluster mode disabled) replication group contains only 1 node group; therefore, the node group ID is 0001. A Redis (cluster mode enabled) replication group contains 1 to 15 node groups numbered 0001 to 0015.
Status (string) --
The current state of this replication group - creating , available , etc.
PrimaryEndpoint (dict) --
The endpoint of the primary node in this node group (shard).
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
Slots (string) --
The keyspace for this node group (shard).
NodeGroupMembers (list) --
A list containing information about individual nodes within the node group (shard).
(dict) --
Represents a single node within a node group (shard).
CacheClusterId (string) --
The ID of the cache cluster to which the node belongs.
CacheNodeId (string) --
The ID of the node within its cache cluster. A node ID is a numeric identifier (0001, 0002, etc.).
ReadEndpoint (dict) --
Represents the information required for client programs to connect to a cache node.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the node is located.
CurrentRole (string) --
The role that is currently assigned to the node - primary or replica .
SnapshottingClusterId (string) --
The cache cluster ID that is used as the daily snapshot source for the replication group.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for this replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
ConfigurationEndpoint (dict) --
The configuration endpoint for this replicaiton group. Use the configuration endpoint to connect to this replication group.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
SnapshotRetentionLimit (integer) --
The number of days for which ElastiCache retains automatic cache 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 node group (shard).
Example: 05:00-09:00
If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.
Note: This parameter is only valid if the Engine parameter is redis .
{'ReplicationGroupId': 'string'}
Response {'Snapshot': {'AutomaticFailover': 'enabled | disabled | enabling | disabling',
'NodeSnapshots': {'CacheClusterId': 'string',
'NodeGroupConfiguration': {'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': ['string'],
'ReplicaCount': 'integer',
'Slots': 'string'},
'NodeGroupId': 'string'},
'NumNodeGroups': 'integer',
'ReplicationGroupDescription': 'string',
'ReplicationGroupId': 'string'}}
Creates a copy of an entire cache cluster or replication group at a specific moment in time.
Note
This operation is valid for Redis only.
Request Syntax
client.create_snapshot(
ReplicationGroupId='string',
CacheClusterId='string',
SnapshotName='string'
)
string
The identifier of an existing replication group. The snapshot is created from this replication group.
string
The identifier of an existing cache cluster. The snapshot is created from this cache cluster.
string
[REQUIRED]
A name for the snapshot being created.
dict
Response Syntax
{
'Snapshot': {
'SnapshotName': 'string',
'ReplicationGroupId': 'string',
'ReplicationGroupDescription': 'string',
'CacheClusterId': 'string',
'SnapshotStatus': 'string',
'SnapshotSource': 'string',
'CacheNodeType': 'string',
'Engine': 'string',
'EngineVersion': 'string',
'NumCacheNodes': 123,
'PreferredAvailabilityZone': 'string',
'CacheClusterCreateTime': datetime(2015, 1, 1),
'PreferredMaintenanceWindow': 'string',
'TopicArn': 'string',
'Port': 123,
'CacheParameterGroupName': 'string',
'CacheSubnetGroupName': 'string',
'VpcId': 'string',
'AutoMinorVersionUpgrade': True|False,
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string',
'NumNodeGroups': 123,
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'NodeSnapshots': [
{
'CacheClusterId': 'string',
'NodeGroupId': 'string',
'CacheNodeId': 'string',
'NodeGroupConfiguration': {
'Slots': 'string',
'ReplicaCount': 123,
'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': [
'string',
]
},
'CacheSize': 'string',
'CacheNodeCreateTime': datetime(2015, 1, 1),
'SnapshotCreateTime': datetime(2015, 1, 1)
},
]
}
}
Response Structure
(dict) --
Snapshot (dict) --
Represents a copy of an entire Redis cache cluster as of the time when the snapshot was taken.
SnapshotName (string) --
The name of a snapshot. For an automatic snapshot, the name is system-generated. For a manual snapshot, this is the user-provided name.
ReplicationGroupId (string) --
The unique identifier of the source replication group.
ReplicationGroupDescription (string) --
A description of the source replication group.
CacheClusterId (string) --
The user-supplied identifier of the source cache cluster.
SnapshotStatus (string) --
The status of the snapshot. Valid values: creating | available | restoring | copying | deleting .
SnapshotSource (string) --
Indicates whether the snapshot is from an automatic backup (automated ) or was created manually (manual ).
CacheNodeType (string) --
The name of the compute and memory capacity node type for the source cache cluster.
Valid node types are as follows:
General purpose:
Current generation: cache.t2.micro , cache.t2.small , cache.t2.medium , cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge , cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge
Previous generation: cache.t1.micro , cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge
Compute optimized: cache.c1.xlarge
Memory optimized:
Current generation: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge
Previous generation: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge
Notes:
All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).
Redis backup/restore is not supported for Redis (cluster mode disabled) T1 and T2 instances. Backup/restore is supported on Redis (cluster mode enabled) T2 instances.
Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.
For a complete listing of node types and specifications, see Amazon ElastiCache Product Features and Details and either Cache Node Type-Specific Parameters for Memcached or Cache Node Type-Specific Parameters for Redis .
Engine (string) --
The name of the cache engine (memcached or redis ) used by the source cache cluster.
EngineVersion (string) --
The version of the cache engine version that is used by the source cache cluster.
NumCacheNodes (integer) --
The number of cache nodes in the source cache cluster.
For clusters running Redis, this value must be 1. For clusters running Memcached, this value must be between 1 and 20.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the source cache cluster is located.
CacheClusterCreateTime (datetime) --
The date and time when the source cache cluster was created.
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:
sun
mon
tue
wed
thu
fri
sat
Example: sun:23:00-mon:01:30
TopicArn (string) --
The Amazon Resource Name (ARN) for the topic used by the source cache cluster for publishing notifications.
Port (integer) --
The port number used by each cache nodes in the source cache cluster.
CacheParameterGroupName (string) --
The cache parameter group that is associated with the source cache cluster.
CacheSubnetGroupName (string) --
The name of the cache subnet group associated with the source cache cluster.
VpcId (string) --
The Amazon Virtual Private Cloud identifier (VPC ID) of the cache subnet group for the source cache cluster.
AutoMinorVersionUpgrade (boolean) --
This parameter is currently disabled.
SnapshotRetentionLimit (integer) --
For an automatic snapshot, the number of days for which ElastiCache retains the snapshot before deleting it.
For manual snapshots, this field reflects the SnapshotRetentionLimit for the source cache cluster when the snapshot was created. This field is otherwise ignored: Manual snapshots do not expire, and can only be deleted using the DeleteSnapshot operation.
Important If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.
SnapshotWindow (string) --
The daily time range during which ElastiCache takes daily snapshots of the source cache cluster.
NumNodeGroups (integer) --
The number of node groups (shards) in this snapshot. When restoring from a snapshot, the number of node groups (shards) in the snapshot and in the restored replication group must be the same.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for the source replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
NodeSnapshots (list) --
A list of the cache nodes in the source cache cluster.
(dict) --
Represents an individual cache node in a snapshot of a cache cluster.
CacheClusterId (string) --
A unique identifier for the source cache cluster.
NodeGroupId (string) --
A unique identifier for the source node group (shard).
CacheNodeId (string) --
The cache node identifier for the node in the source cache cluster.
NodeGroupConfiguration (dict) --
The configuration for the source node group (shard).
Slots (string) --
A string that specifies the keyspaces as a series of comma separated values. Keyspaces are 0 to 16,383. The string is in the format startkey-endkey .
Example: "0-3999"
ReplicaCount (integer) --
The number of read replica nodes in this node group (shard).
PrimaryAvailabilityZone (string) --
The Availability Zone where the primary node of this node group (shard) is launched.
ReplicaAvailabilityZones (list) --
A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this list must match the value of ReplicaCount or ReplicasPerNodeGroup if not specified.
(string) --
CacheSize (string) --
The size of the cache on the source cache node.
CacheNodeCreateTime (datetime) --
The date and time when the cache node was created in the source cache cluster.
SnapshotCreateTime (datetime) --
The date and time when the source node's metadata and cache data set was obtained for the snapshot.
{'ReplicationGroup': {'ConfigurationEndpoint': {'Address': 'string',
'Port': 'integer'},
'NodeGroups': {'Slots': 'string'},
'SnapshotRetentionLimit': 'integer',
'SnapshotWindow': 'string'}}
Deletes an existing replication group. By default, this operation deletes the entire replication group, including the primary/primaries and all of the read replicas. If the replication group has only one primary, you can optionally delete only the read replicas, while retaining the primary by setting RetainPrimaryCluster=true .
When you receive a successful response from this operation, Amazon ElastiCache immediately begins deleting the selected resources; you cannot cancel or revert this operation.
Note
This operation is valid for Redis only.
Request Syntax
client.delete_replication_group(
ReplicationGroupId='string',
RetainPrimaryCluster=True|False,
FinalSnapshotIdentifier='string'
)
string
[REQUIRED]
The identifier for the cluster to be deleted. This parameter is not case sensitive.
boolean
If set to true , all of the read replicas are deleted, but the primary node is retained.
string
The name of a final node group (shard) snapshot. ElastiCache creates the snapshot from the primary node in the cluster, rather than one of the replicas; this is to ensure that it captures the freshest data. After the final snapshot is taken, the replication group is immediately deleted.
dict
Response Syntax
{
'ReplicationGroup': {
'ReplicationGroupId': 'string',
'Description': 'string',
'Status': 'string',
'PendingModifiedValues': {
'PrimaryClusterId': 'string',
'AutomaticFailoverStatus': 'enabled'|'disabled'
},
'MemberClusters': [
'string',
],
'NodeGroups': [
{
'NodeGroupId': 'string',
'Status': 'string',
'PrimaryEndpoint': {
'Address': 'string',
'Port': 123
},
'Slots': 'string',
'NodeGroupMembers': [
{
'CacheClusterId': 'string',
'CacheNodeId': 'string',
'ReadEndpoint': {
'Address': 'string',
'Port': 123
},
'PreferredAvailabilityZone': 'string',
'CurrentRole': 'string'
},
]
},
],
'SnapshottingClusterId': 'string',
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'ConfigurationEndpoint': {
'Address': 'string',
'Port': 123
},
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string'
}
}
Response Structure
(dict) --
ReplicationGroup (dict) --
Contains all of the attributes of a specific Redis replication group.
ReplicationGroupId (string) --
The identifier for the replication group.
Description (string) --
The description of the replication group.
Status (string) --
The current state of this replication group - creating , available , etc.
PendingModifiedValues (dict) --
A group of settings to be applied to the replication group, either immediately or during the next maintenance window.
PrimaryClusterId (string) --
The primary cluster ID that is applied immediately (if --apply-immediately was specified), or during the next maintenance window.
AutomaticFailoverStatus (string) --
Indicates the status of Multi-AZ for this Redis replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
MemberClusters (list) --
The names of all the cache clusters that are part of this replication group.
(string) --
NodeGroups (list) --
A single element list with information about the nodes in the replication group.
(dict) --
Represents a collection of cache nodes in a replication group. One node in the node group is the read/write Primary node. All the other nodes are read-only Replica nodes.
NodeGroupId (string) --
The identifier for the node group (shard). A Redis (cluster mode disabled) replication group contains only 1 node group; therefore, the node group ID is 0001. A Redis (cluster mode enabled) replication group contains 1 to 15 node groups numbered 0001 to 0015.
Status (string) --
The current state of this replication group - creating , available , etc.
PrimaryEndpoint (dict) --
The endpoint of the primary node in this node group (shard).
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
Slots (string) --
The keyspace for this node group (shard).
NodeGroupMembers (list) --
A list containing information about individual nodes within the node group (shard).
(dict) --
Represents a single node within a node group (shard).
CacheClusterId (string) --
The ID of the cache cluster to which the node belongs.
CacheNodeId (string) --
The ID of the node within its cache cluster. A node ID is a numeric identifier (0001, 0002, etc.).
ReadEndpoint (dict) --
Represents the information required for client programs to connect to a cache node.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the node is located.
CurrentRole (string) --
The role that is currently assigned to the node - primary or replica .
SnapshottingClusterId (string) --
The cache cluster ID that is used as the daily snapshot source for the replication group.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for this replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
ConfigurationEndpoint (dict) --
The configuration endpoint for this replicaiton group. Use the configuration endpoint to connect to this replication group.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
SnapshotRetentionLimit (integer) --
The number of days for which ElastiCache retains automatic cache 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 node group (shard).
Example: 05:00-09:00
If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.
Note: This parameter is only valid if the Engine parameter is redis .
{'Snapshot': {'AutomaticFailover': 'enabled | disabled | enabling | disabling',
'NodeSnapshots': {'CacheClusterId': 'string',
'NodeGroupConfiguration': {'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': ['string'],
'ReplicaCount': 'integer',
'Slots': 'string'},
'NodeGroupId': 'string'},
'NumNodeGroups': 'integer',
'ReplicationGroupDescription': 'string',
'ReplicationGroupId': 'string'}}
Deletes an existing snapshot. When you receive a successful response from this operation, ElastiCache immediately begins deleting the snapshot; you cannot cancel or revert this operation.
Note
This operation is valid for Redis only.
Request Syntax
client.delete_snapshot(
SnapshotName='string'
)
string
[REQUIRED]
The name of the snapshot to be deleted.
dict
Response Syntax
{
'Snapshot': {
'SnapshotName': 'string',
'ReplicationGroupId': 'string',
'ReplicationGroupDescription': 'string',
'CacheClusterId': 'string',
'SnapshotStatus': 'string',
'SnapshotSource': 'string',
'CacheNodeType': 'string',
'Engine': 'string',
'EngineVersion': 'string',
'NumCacheNodes': 123,
'PreferredAvailabilityZone': 'string',
'CacheClusterCreateTime': datetime(2015, 1, 1),
'PreferredMaintenanceWindow': 'string',
'TopicArn': 'string',
'Port': 123,
'CacheParameterGroupName': 'string',
'CacheSubnetGroupName': 'string',
'VpcId': 'string',
'AutoMinorVersionUpgrade': True|False,
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string',
'NumNodeGroups': 123,
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'NodeSnapshots': [
{
'CacheClusterId': 'string',
'NodeGroupId': 'string',
'CacheNodeId': 'string',
'NodeGroupConfiguration': {
'Slots': 'string',
'ReplicaCount': 123,
'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': [
'string',
]
},
'CacheSize': 'string',
'CacheNodeCreateTime': datetime(2015, 1, 1),
'SnapshotCreateTime': datetime(2015, 1, 1)
},
]
}
}
Response Structure
(dict) --
Snapshot (dict) --
Represents a copy of an entire Redis cache cluster as of the time when the snapshot was taken.
SnapshotName (string) --
The name of a snapshot. For an automatic snapshot, the name is system-generated. For a manual snapshot, this is the user-provided name.
ReplicationGroupId (string) --
The unique identifier of the source replication group.
ReplicationGroupDescription (string) --
A description of the source replication group.
CacheClusterId (string) --
The user-supplied identifier of the source cache cluster.
SnapshotStatus (string) --
The status of the snapshot. Valid values: creating | available | restoring | copying | deleting .
SnapshotSource (string) --
Indicates whether the snapshot is from an automatic backup (automated ) or was created manually (manual ).
CacheNodeType (string) --
The name of the compute and memory capacity node type for the source cache cluster.
Valid node types are as follows:
General purpose:
Current generation: cache.t2.micro , cache.t2.small , cache.t2.medium , cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge , cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge
Previous generation: cache.t1.micro , cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge
Compute optimized: cache.c1.xlarge
Memory optimized:
Current generation: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge
Previous generation: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge
Notes:
All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).
Redis backup/restore is not supported for Redis (cluster mode disabled) T1 and T2 instances. Backup/restore is supported on Redis (cluster mode enabled) T2 instances.
Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.
For a complete listing of node types and specifications, see Amazon ElastiCache Product Features and Details and either Cache Node Type-Specific Parameters for Memcached or Cache Node Type-Specific Parameters for Redis .
Engine (string) --
The name of the cache engine (memcached or redis ) used by the source cache cluster.
EngineVersion (string) --
The version of the cache engine version that is used by the source cache cluster.
NumCacheNodes (integer) --
The number of cache nodes in the source cache cluster.
For clusters running Redis, this value must be 1. For clusters running Memcached, this value must be between 1 and 20.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the source cache cluster is located.
CacheClusterCreateTime (datetime) --
The date and time when the source cache cluster was created.
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:
sun
mon
tue
wed
thu
fri
sat
Example: sun:23:00-mon:01:30
TopicArn (string) --
The Amazon Resource Name (ARN) for the topic used by the source cache cluster for publishing notifications.
Port (integer) --
The port number used by each cache nodes in the source cache cluster.
CacheParameterGroupName (string) --
The cache parameter group that is associated with the source cache cluster.
CacheSubnetGroupName (string) --
The name of the cache subnet group associated with the source cache cluster.
VpcId (string) --
The Amazon Virtual Private Cloud identifier (VPC ID) of the cache subnet group for the source cache cluster.
AutoMinorVersionUpgrade (boolean) --
This parameter is currently disabled.
SnapshotRetentionLimit (integer) --
For an automatic snapshot, the number of days for which ElastiCache retains the snapshot before deleting it.
For manual snapshots, this field reflects the SnapshotRetentionLimit for the source cache cluster when the snapshot was created. This field is otherwise ignored: Manual snapshots do not expire, and can only be deleted using the DeleteSnapshot operation.
Important If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.
SnapshotWindow (string) --
The daily time range during which ElastiCache takes daily snapshots of the source cache cluster.
NumNodeGroups (integer) --
The number of node groups (shards) in this snapshot. When restoring from a snapshot, the number of node groups (shards) in the snapshot and in the restored replication group must be the same.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for the source replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
NodeSnapshots (list) --
A list of the cache nodes in the source cache cluster.
(dict) --
Represents an individual cache node in a snapshot of a cache cluster.
CacheClusterId (string) --
A unique identifier for the source cache cluster.
NodeGroupId (string) --
A unique identifier for the source node group (shard).
CacheNodeId (string) --
The cache node identifier for the node in the source cache cluster.
NodeGroupConfiguration (dict) --
The configuration for the source node group (shard).
Slots (string) --
A string that specifies the keyspaces as a series of comma separated values. Keyspaces are 0 to 16,383. The string is in the format startkey-endkey .
Example: "0-3999"
ReplicaCount (integer) --
The number of read replica nodes in this node group (shard).
PrimaryAvailabilityZone (string) --
The Availability Zone where the primary node of this node group (shard) is launched.
ReplicaAvailabilityZones (list) --
A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this list must match the value of ReplicaCount or ReplicasPerNodeGroup if not specified.
(string) --
CacheSize (string) --
The size of the cache on the source cache node.
CacheNodeCreateTime (datetime) --
The date and time when the cache node was created in the source cache cluster.
SnapshotCreateTime (datetime) --
The date and time when the source node's metadata and cache data set was obtained for the snapshot.
{'SourceType': ['replication-group']}
Response {'Events': {'SourceType': ['replication-group']}}
Returns events related to cache clusters, cache security groups, and cache parameter groups. You can obtain events specific to a particular cache cluster, cache security group, or cache parameter group by providing the name as a parameter.
By default, only the events occurring within the last hour are returned; however, you can retrieve up to 14 days' worth of events if necessary.
Request Syntax
client.describe_events(
SourceIdentifier='string',
SourceType='cache-cluster'|'cache-parameter-group'|'cache-security-group'|'cache-subnet-group'|'replication-group',
StartTime=datetime(2015, 1, 1),
EndTime=datetime(2015, 1, 1),
Duration=123,
MaxRecords=123,
Marker='string'
)
string
The identifier of the event source for which events are returned. If not specified, all sources are included in the response.
string
The event source to retrieve events for. If no value is specified, all events are returned.
datetime
The beginning of the time interval to retrieve events for, specified in ISO 8601 format.
datetime
The end of the time interval for which to retrieve events, specified in ISO 8601 format.
integer
The number of minutes' worth of events to retrieve.
integer
The maximum number of records to include in the response. If more records exist than the specified MaxRecords value, a marker is included in the response so that the remaining results can be retrieved.
Default: 100
Constraints: minimum 20; maximum 100.
string
An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords .
dict
Response Syntax
{
'Marker': 'string',
'Events': [
{
'SourceIdentifier': 'string',
'SourceType': 'cache-cluster'|'cache-parameter-group'|'cache-security-group'|'cache-subnet-group'|'replication-group',
'Message': 'string',
'Date': datetime(2015, 1, 1)
},
]
}
Response Structure
(dict) --
Represents the output of a DescribeEvents operation.
Marker (string) --
Provides an identifier to allow retrieval of paginated results.
Events (list) --
A list of events. Each element in the list contains detailed information about one event.
(dict) --
Represents a single occurrence of something interesting within the system. Some examples of events are creating a cache cluster, adding or removing a cache node, or rebooting a node.
SourceIdentifier (string) --
The identifier for the source of the event. For example, if the event occurred at the cache cluster level, the identifier would be the name of the cache cluster.
SourceType (string) --
Specifies the origin of this event - a cache cluster, a parameter group, a security group, etc.
Message (string) --
The text of the event.
Date (datetime) --
The date and time when the event occurred.
{'ReplicationGroups': {'ConfigurationEndpoint': {'Address': 'string',
'Port': 'integer'},
'NodeGroups': {'Slots': 'string'},
'SnapshotRetentionLimit': 'integer',
'SnapshotWindow': 'string'}}
Returns information about a particular replication group. If no identifier is specified, DescribeReplicationGroups returns information about all replication groups.
Note
This operation is valid for Redis only.
Request Syntax
client.describe_replication_groups(
ReplicationGroupId='string',
MaxRecords=123,
Marker='string'
)
string
The identifier for the replication group to be described. This parameter is not case sensitive.
If you do not specify this parameter, information about all replication groups is returned.
integer
The maximum number of records to include in the response. If more records exist than the specified MaxRecords value, a marker is included in the response so that the remaining results can be retrieved.
Default: 100
Constraints: minimum 20; maximum 100.
string
An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords .
dict
Response Syntax
{
'Marker': 'string',
'ReplicationGroups': [
{
'ReplicationGroupId': 'string',
'Description': 'string',
'Status': 'string',
'PendingModifiedValues': {
'PrimaryClusterId': 'string',
'AutomaticFailoverStatus': 'enabled'|'disabled'
},
'MemberClusters': [
'string',
],
'NodeGroups': [
{
'NodeGroupId': 'string',
'Status': 'string',
'PrimaryEndpoint': {
'Address': 'string',
'Port': 123
},
'Slots': 'string',
'NodeGroupMembers': [
{
'CacheClusterId': 'string',
'CacheNodeId': 'string',
'ReadEndpoint': {
'Address': 'string',
'Port': 123
},
'PreferredAvailabilityZone': 'string',
'CurrentRole': 'string'
},
]
},
],
'SnapshottingClusterId': 'string',
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'ConfigurationEndpoint': {
'Address': 'string',
'Port': 123
},
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string'
},
]
}
Response Structure
(dict) --
Represents the output of a DescribeReplicationGroups operation.
Marker (string) --
Provides an identifier to allow retrieval of paginated results.
ReplicationGroups (list) --
A list of replication groups. Each item in the list contains detailed information about one replication group.
(dict) --
Contains all of the attributes of a specific Redis replication group.
ReplicationGroupId (string) --
The identifier for the replication group.
Description (string) --
The description of the replication group.
Status (string) --
The current state of this replication group - creating , available , etc.
PendingModifiedValues (dict) --
A group of settings to be applied to the replication group, either immediately or during the next maintenance window.
PrimaryClusterId (string) --
The primary cluster ID that is applied immediately (if --apply-immediately was specified), or during the next maintenance window.
AutomaticFailoverStatus (string) --
Indicates the status of Multi-AZ for this Redis replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
MemberClusters (list) --
The names of all the cache clusters that are part of this replication group.
(string) --
NodeGroups (list) --
A single element list with information about the nodes in the replication group.
(dict) --
Represents a collection of cache nodes in a replication group. One node in the node group is the read/write Primary node. All the other nodes are read-only Replica nodes.
NodeGroupId (string) --
The identifier for the node group (shard). A Redis (cluster mode disabled) replication group contains only 1 node group; therefore, the node group ID is 0001. A Redis (cluster mode enabled) replication group contains 1 to 15 node groups numbered 0001 to 0015.
Status (string) --
The current state of this replication group - creating , available , etc.
PrimaryEndpoint (dict) --
The endpoint of the primary node in this node group (shard).
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
Slots (string) --
The keyspace for this node group (shard).
NodeGroupMembers (list) --
A list containing information about individual nodes within the node group (shard).
(dict) --
Represents a single node within a node group (shard).
CacheClusterId (string) --
The ID of the cache cluster to which the node belongs.
CacheNodeId (string) --
The ID of the node within its cache cluster. A node ID is a numeric identifier (0001, 0002, etc.).
ReadEndpoint (dict) --
Represents the information required for client programs to connect to a cache node.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the node is located.
CurrentRole (string) --
The role that is currently assigned to the node - primary or replica .
SnapshottingClusterId (string) --
The cache cluster ID that is used as the daily snapshot source for the replication group.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for this replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
ConfigurationEndpoint (dict) --
The configuration endpoint for this replicaiton group. Use the configuration endpoint to connect to this replication group.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
SnapshotRetentionLimit (integer) --
The number of days for which ElastiCache retains automatic cache 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 node group (shard).
Example: 05:00-09:00
If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.
Note: This parameter is only valid if the Engine parameter is redis .
{'ReplicationGroupId': 'string', 'ShowNodeGroupConfig': 'boolean'}
Response {'Snapshots': {'AutomaticFailover': 'enabled | disabled | enabling | disabling',
'NodeSnapshots': {'CacheClusterId': 'string',
'NodeGroupConfiguration': {'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': ['string'],
'ReplicaCount': 'integer',
'Slots': 'string'},
'NodeGroupId': 'string'},
'NumNodeGroups': 'integer',
'ReplicationGroupDescription': 'string',
'ReplicationGroupId': 'string'}}
Returns information about cache cluster or replication group snapshots. By default, DescribeSnapshots lists all of your snapshots; it can optionally describe a single snapshot, or just the snapshots associated with a particular cache cluster.
Note
This operation is valid for Redis only.
Request Syntax
client.describe_snapshots(
ReplicationGroupId='string',
CacheClusterId='string',
SnapshotName='string',
SnapshotSource='string',
Marker='string',
MaxRecords=123,
ShowNodeGroupConfig=True|False
)
string
A user-supplied replication group identifier. If this parameter is specified, only snapshots associated with that specific replication group are described.
string
A user-supplied cluster identifier. If this parameter is specified, only snapshots associated with that specific cache cluster are described.
string
A user-supplied name of the snapshot. If this parameter is specified, only this snapshot are described.
string
If set to system , the output shows snapshots that were automatically created by ElastiCache. If set to user the output shows snapshots that were manually created. If omitted, the output shows both automatically and manually created snapshots.
string
An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords .
integer
The maximum number of records to include in the response. If more records exist than the specified MaxRecords value, a marker is included in the response so that the remaining results can be retrieved.
Default: 50
Constraints: minimum 20; maximum 50.
boolean
A boolean value which if true, the node group (shard) configuration is included in the snapshot description.
dict
Response Syntax
{
'Marker': 'string',
'Snapshots': [
{
'SnapshotName': 'string',
'ReplicationGroupId': 'string',
'ReplicationGroupDescription': 'string',
'CacheClusterId': 'string',
'SnapshotStatus': 'string',
'SnapshotSource': 'string',
'CacheNodeType': 'string',
'Engine': 'string',
'EngineVersion': 'string',
'NumCacheNodes': 123,
'PreferredAvailabilityZone': 'string',
'CacheClusterCreateTime': datetime(2015, 1, 1),
'PreferredMaintenanceWindow': 'string',
'TopicArn': 'string',
'Port': 123,
'CacheParameterGroupName': 'string',
'CacheSubnetGroupName': 'string',
'VpcId': 'string',
'AutoMinorVersionUpgrade': True|False,
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string',
'NumNodeGroups': 123,
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'NodeSnapshots': [
{
'CacheClusterId': 'string',
'NodeGroupId': 'string',
'CacheNodeId': 'string',
'NodeGroupConfiguration': {
'Slots': 'string',
'ReplicaCount': 123,
'PrimaryAvailabilityZone': 'string',
'ReplicaAvailabilityZones': [
'string',
]
},
'CacheSize': 'string',
'CacheNodeCreateTime': datetime(2015, 1, 1),
'SnapshotCreateTime': datetime(2015, 1, 1)
},
]
},
]
}
Response Structure
(dict) --
Represents the output of a DescribeSnapshots operation.
Marker (string) --
An optional marker returned from a prior request. Use this marker for pagination of results from this operation. If this parameter is specified, the response includes only records beyond the marker, up to the value specified by MaxRecords .
Snapshots (list) --
A list of snapshots. Each item in the list contains detailed information about one snapshot.
(dict) --
Represents a copy of an entire Redis cache cluster as of the time when the snapshot was taken.
SnapshotName (string) --
The name of a snapshot. For an automatic snapshot, the name is system-generated. For a manual snapshot, this is the user-provided name.
ReplicationGroupId (string) --
The unique identifier of the source replication group.
ReplicationGroupDescription (string) --
A description of the source replication group.
CacheClusterId (string) --
The user-supplied identifier of the source cache cluster.
SnapshotStatus (string) --
The status of the snapshot. Valid values: creating | available | restoring | copying | deleting .
SnapshotSource (string) --
Indicates whether the snapshot is from an automatic backup (automated ) or was created manually (manual ).
CacheNodeType (string) --
The name of the compute and memory capacity node type for the source cache cluster.
Valid node types are as follows:
General purpose:
Current generation: cache.t2.micro , cache.t2.small , cache.t2.medium , cache.m3.medium , cache.m3.large , cache.m3.xlarge , cache.m3.2xlarge , cache.m4.large , cache.m4.xlarge , cache.m4.2xlarge , cache.m4.4xlarge , cache.m4.10xlarge
Previous generation: cache.t1.micro , cache.m1.small , cache.m1.medium , cache.m1.large , cache.m1.xlarge
Compute optimized: cache.c1.xlarge
Memory optimized:
Current generation: cache.r3.large , cache.r3.xlarge , cache.r3.2xlarge , cache.r3.4xlarge , cache.r3.8xlarge
Previous generation: cache.m2.xlarge , cache.m2.2xlarge , cache.m2.4xlarge
Notes:
All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).
Redis backup/restore is not supported for Redis (cluster mode disabled) T1 and T2 instances. Backup/restore is supported on Redis (cluster mode enabled) T2 instances.
Redis Append-only files (AOF) functionality is not supported for T1 or T2 instances.
For a complete listing of node types and specifications, see Amazon ElastiCache Product Features and Details and either Cache Node Type-Specific Parameters for Memcached or Cache Node Type-Specific Parameters for Redis .
Engine (string) --
The name of the cache engine (memcached or redis ) used by the source cache cluster.
EngineVersion (string) --
The version of the cache engine version that is used by the source cache cluster.
NumCacheNodes (integer) --
The number of cache nodes in the source cache cluster.
For clusters running Redis, this value must be 1. For clusters running Memcached, this value must be between 1 and 20.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the source cache cluster is located.
CacheClusterCreateTime (datetime) --
The date and time when the source cache cluster was created.
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:
sun
mon
tue
wed
thu
fri
sat
Example: sun:23:00-mon:01:30
TopicArn (string) --
The Amazon Resource Name (ARN) for the topic used by the source cache cluster for publishing notifications.
Port (integer) --
The port number used by each cache nodes in the source cache cluster.
CacheParameterGroupName (string) --
The cache parameter group that is associated with the source cache cluster.
CacheSubnetGroupName (string) --
The name of the cache subnet group associated with the source cache cluster.
VpcId (string) --
The Amazon Virtual Private Cloud identifier (VPC ID) of the cache subnet group for the source cache cluster.
AutoMinorVersionUpgrade (boolean) --
This parameter is currently disabled.
SnapshotRetentionLimit (integer) --
For an automatic snapshot, the number of days for which ElastiCache retains the snapshot before deleting it.
For manual snapshots, this field reflects the SnapshotRetentionLimit for the source cache cluster when the snapshot was created. This field is otherwise ignored: Manual snapshots do not expire, and can only be deleted using the DeleteSnapshot operation.
Important If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.
SnapshotWindow (string) --
The daily time range during which ElastiCache takes daily snapshots of the source cache cluster.
NumNodeGroups (integer) --
The number of node groups (shards) in this snapshot. When restoring from a snapshot, the number of node groups (shards) in the snapshot and in the restored replication group must be the same.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for the source replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
NodeSnapshots (list) --
A list of the cache nodes in the source cache cluster.
(dict) --
Represents an individual cache node in a snapshot of a cache cluster.
CacheClusterId (string) --
A unique identifier for the source cache cluster.
NodeGroupId (string) --
A unique identifier for the source node group (shard).
CacheNodeId (string) --
The cache node identifier for the node in the source cache cluster.
NodeGroupConfiguration (dict) --
The configuration for the source node group (shard).
Slots (string) --
A string that specifies the keyspaces as a series of comma separated values. Keyspaces are 0 to 16,383. The string is in the format startkey-endkey .
Example: "0-3999"
ReplicaCount (integer) --
The number of read replica nodes in this node group (shard).
PrimaryAvailabilityZone (string) --
The Availability Zone where the primary node of this node group (shard) is launched.
ReplicaAvailabilityZones (list) --
A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this list must match the value of ReplicaCount or ReplicasPerNodeGroup if not specified.
(string) --
CacheSize (string) --
The size of the cache on the source cache node.
CacheNodeCreateTime (datetime) --
The date and time when the cache node was created in the source cache cluster.
SnapshotCreateTime (datetime) --
The date and time when the source node's metadata and cache data set was obtained for the snapshot.
{'ReplicationGroup': {'ConfigurationEndpoint': {'Address': 'string',
'Port': 'integer'},
'NodeGroups': {'Slots': 'string'},
'SnapshotRetentionLimit': 'integer',
'SnapshotWindow': 'string'}}
Modifies the settings for a replication group.
Warning
Due to current limitations on Redis (cluster mode disabled), this operation or parameter is not supported on Redis (cluster mode enabled) replication groups.
Note
This operation is valid for Redis only.
Request Syntax
client.modify_replication_group(
ReplicationGroupId='string',
ReplicationGroupDescription='string',
PrimaryClusterId='string',
SnapshottingClusterId='string',
AutomaticFailoverEnabled=True|False,
CacheSecurityGroupNames=[
'string',
],
SecurityGroupIds=[
'string',
],
PreferredMaintenanceWindow='string',
NotificationTopicArn='string',
CacheParameterGroupName='string',
NotificationTopicStatus='string',
ApplyImmediately=True|False,
EngineVersion='string',
AutoMinorVersionUpgrade=True|False,
SnapshotRetentionLimit=123,
SnapshotWindow='string',
CacheNodeType='string'
)
string
[REQUIRED]
The identifier of the replication group to modify.
string
A description for the replication group. Maximum length is 255 characters.
string
For replication groups with a single primary, if this parameter is specified, ElastiCache promotes the specified cluster in the specified replication group to the primary role. The nodes of all other clusters in the replication group are read replicas.
string
The cache cluster ID that is used as the daily snapshot source for the replication group. This parameter cannot be set for Redis (cluster mode enabled) replication groups.
boolean
Determines whether a read replica is automatically promoted to read/write primary if the existing primary encounters a failure.
Valid values: true | false
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
list
A list of cache security group names to authorize for the clusters in this replication group. This change is asynchronously applied as soon as possible.
This parameter can be used only with replication group containing cache clusters running outside of an Amazon Virtual Private Cloud (Amazon VPC).
Constraints: Must contain no more than 255 alphanumeric characters. Must not be Default .
(string) --
list
Specifies the VPC Security Groups associated with the cache clusters in the replication group.
This parameter can be used only with replication group containing cache clusters running in an Amazon Virtual Private Cloud (Amazon VPC).
(string) --
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:
sun
mon
tue
wed
thu
fri
sat
Example: sun:23:00-mon:01:30
string
The Amazon Resource Name (ARN) of the Amazon SNS topic to which notifications are sent.
Note
The Amazon SNS topic owner must be same as the replication group owner.
string
The name of the cache parameter group to apply to all of the clusters in this replication group. This change is asynchronously applied as soon as possible for parameters when the ApplyImmediately parameter is specified as true for this request.
string
The status of the Amazon SNS notification topic for the replication group. Notifications are sent only if the status is active .
Valid values: active | inactive
boolean
If true , this parameter causes the modifications in this request and any pending modifications to be applied, asynchronously and as soon as possible, regardless of the PreferredMaintenanceWindow setting for the replication group.
If false , changes to the nodes in the replication group are applied on the next maintenance reboot, or the next failure reboot, whichever occurs first.
Valid values: true | false
Default: false
string
The upgraded version of the cache engine to be run on the cache clusters in the replication group.
Important: You can upgrade to a newer engine version (see Selecting a Cache Engine and Version ), but you cannot downgrade to an earlier engine version. If you want to use an earlier engine version, you must delete the existing replication group and create it anew with the earlier engine version.
boolean
This parameter is currently disabled.
integer
The number of days for which ElastiCache retains automatic node group (shard) 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.
Important If the value of SnapshotRetentionLimit is set to zero (0), backups are turned off.
string
The daily time range (in UTC) during which ElastiCache begins taking a daily snapshot of the node group (shard) specified by SnapshottingClusterId .
Example: 05:00-09:00
If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.
string
A valid cache node type that you want to scale this replication group to.
dict
Response Syntax
{
'ReplicationGroup': {
'ReplicationGroupId': 'string',
'Description': 'string',
'Status': 'string',
'PendingModifiedValues': {
'PrimaryClusterId': 'string',
'AutomaticFailoverStatus': 'enabled'|'disabled'
},
'MemberClusters': [
'string',
],
'NodeGroups': [
{
'NodeGroupId': 'string',
'Status': 'string',
'PrimaryEndpoint': {
'Address': 'string',
'Port': 123
},
'Slots': 'string',
'NodeGroupMembers': [
{
'CacheClusterId': 'string',
'CacheNodeId': 'string',
'ReadEndpoint': {
'Address': 'string',
'Port': 123
},
'PreferredAvailabilityZone': 'string',
'CurrentRole': 'string'
},
]
},
],
'SnapshottingClusterId': 'string',
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'ConfigurationEndpoint': {
'Address': 'string',
'Port': 123
},
'SnapshotRetentionLimit': 123,
'SnapshotWindow': 'string'
}
}
Response Structure
(dict) --
ReplicationGroup (dict) --
Contains all of the attributes of a specific Redis replication group.
ReplicationGroupId (string) --
The identifier for the replication group.
Description (string) --
The description of the replication group.
Status (string) --
The current state of this replication group - creating , available , etc.
PendingModifiedValues (dict) --
A group of settings to be applied to the replication group, either immediately or during the next maintenance window.
PrimaryClusterId (string) --
The primary cluster ID that is applied immediately (if --apply-immediately was specified), or during the next maintenance window.
AutomaticFailoverStatus (string) --
Indicates the status of Multi-AZ for this Redis replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
MemberClusters (list) --
The names of all the cache clusters that are part of this replication group.
(string) --
NodeGroups (list) --
A single element list with information about the nodes in the replication group.
(dict) --
Represents a collection of cache nodes in a replication group. One node in the node group is the read/write Primary node. All the other nodes are read-only Replica nodes.
NodeGroupId (string) --
The identifier for the node group (shard). A Redis (cluster mode disabled) replication group contains only 1 node group; therefore, the node group ID is 0001. A Redis (cluster mode enabled) replication group contains 1 to 15 node groups numbered 0001 to 0015.
Status (string) --
The current state of this replication group - creating , available , etc.
PrimaryEndpoint (dict) --
The endpoint of the primary node in this node group (shard).
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
Slots (string) --
The keyspace for this node group (shard).
NodeGroupMembers (list) --
A list containing information about individual nodes within the node group (shard).
(dict) --
Represents a single node within a node group (shard).
CacheClusterId (string) --
The ID of the cache cluster to which the node belongs.
CacheNodeId (string) --
The ID of the node within its cache cluster. A node ID is a numeric identifier (0001, 0002, etc.).
ReadEndpoint (dict) --
Represents the information required for client programs to connect to a cache node.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
PreferredAvailabilityZone (string) --
The name of the Availability Zone in which the node is located.
CurrentRole (string) --
The role that is currently assigned to the node - primary or replica .
SnapshottingClusterId (string) --
The cache cluster ID that is used as the daily snapshot source for the replication group.
AutomaticFailover (string) --
Indicates the status of Multi-AZ for this replication group.
Note
ElastiCache Multi-AZ replication groups are not supported on:
Redis versions earlier than 2.8.6.
Redis (cluster mode disabled):T1 and T2 cache node types. Redis (cluster mode enabled): T1 node types.
ConfigurationEndpoint (dict) --
The configuration endpoint for this replicaiton group. Use the configuration endpoint to connect to this replication group.
Address (string) --
The DNS hostname of the cache node.
Port (integer) --
The port number that the cache engine is listening on.
SnapshotRetentionLimit (integer) --
The number of days for which ElastiCache retains automatic cache 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 node group (shard).
Example: 05:00-09:00
If you do not specify this parameter, ElastiCache automatically chooses an appropriate time range.
Note: This parameter is only valid if the Engine parameter is redis .