decrease_node_groups_in_global_replication_group
(**kwargs)¶Decreases the number of node groups in a Global datastore
See also: AWS API Documentation
Request Syntax
response = client.decrease_node_groups_in_global_replication_group(
GlobalReplicationGroupId='string',
NodeGroupCount=123,
GlobalNodeGroupsToRemove=[
'string',
],
GlobalNodeGroupsToRetain=[
'string',
],
ApplyImmediately=True|False
)
[REQUIRED]
The name of the Global datastore
[REQUIRED]
The number of node groups (shards) that results from the modification of the shard configuration
If the value of NodeGroupCount is less than the current number of node groups (shards), then either NodeGroupsToRemove or NodeGroupsToRetain is required. GlobalNodeGroupsToRemove is a list of NodeGroupIds to remove from the cluster. ElastiCache for Redis will attempt to remove all node groups listed by GlobalNodeGroupsToRemove from the cluster.
If the value of NodeGroupCount is less than the current number of node groups (shards), then either NodeGroupsToRemove or NodeGroupsToRetain is required. GlobalNodeGroupsToRetain is a list of NodeGroupIds to retain from the cluster. ElastiCache for Redis will attempt to retain all node groups listed by GlobalNodeGroupsToRetain from the cluster.
[REQUIRED]
Indicates that the shard reconfiguration process begins immediately. At present, the only permitted value for this parameter is true.
dict
Response Syntax
{
'GlobalReplicationGroup': {
'GlobalReplicationGroupId': 'string',
'GlobalReplicationGroupDescription': 'string',
'Status': 'string',
'CacheNodeType': 'string',
'Engine': 'string',
'EngineVersion': 'string',
'Members': [
{
'ReplicationGroupId': 'string',
'ReplicationGroupRegion': 'string',
'Role': 'string',
'AutomaticFailover': 'enabled'|'disabled'|'enabling'|'disabling',
'Status': 'string'
},
],
'ClusterEnabled': True|False,
'GlobalNodeGroups': [
{
'GlobalNodeGroupId': 'string',
'Slots': 'string'
},
],
'AuthTokenEnabled': True|False,
'TransitEncryptionEnabled': True|False,
'AtRestEncryptionEnabled': True|False,
'ARN': 'string'
}
}
Response Structure
(dict) --
GlobalReplicationGroup (dict) --
Consists of a primary cluster that accepts writes and an associated secondary cluster that resides in a different Amazon region. The secondary cluster accepts only reads. The primary cluster automatically replicates updates to the secondary cluster.
GlobalReplicationGroupId (string) --
The name of the Global datastore
GlobalReplicationGroupDescription (string) --
The optional description of the Global datastore
Status (string) --
The status of the Global datastore
CacheNodeType (string) --
The cache node type of the Global datastore
Engine (string) --
The Elasticache engine. For Redis only.
EngineVersion (string) --
The Elasticache Redis engine version.
Members (list) --
The replication groups that comprise the Global datastore.
(dict) --
A member of a Global datastore. It contains the Replication Group Id, the Amazon region and the role of the replication group.
ReplicationGroupId (string) --
The replication group id of the Global datastore member.
ReplicationGroupRegion (string) --
The Amazon region of the Global datastore member.
Role (string) --
Indicates the role of the replication group, primary or secondary.
AutomaticFailover (string) --
Indicates whether automatic failover is enabled for the replication group.
Status (string) --
The status of the membership of the replication group.
ClusterEnabled (boolean) --
A flag that indicates whether the Global datastore is cluster enabled.
GlobalNodeGroups (list) --
Indicates the slot configuration and global identifier for each slice group.
(dict) --
Indicates the slot configuration and global identifier for a slice group.
GlobalNodeGroupId (string) --
The name of the global node group
Slots (string) --
The keyspace for this node group
AuthTokenEnabled (boolean) --
A flag that enables using an AuthToken
(password) when issuing Redis commands.
Default: false
TransitEncryptionEnabled (boolean) --
A flag that enables in-transit encryption when set to true.
Required: Only available when creating a replication group in an Amazon VPC using redis version
3.2.6
,4.x
or later.
AtRestEncryptionEnabled (boolean) --
A flag that enables encryption at rest when set to true
.
You cannot modify the value of AtRestEncryptionEnabled
after the replication group is created. To enable encryption at rest on a replication group you must set AtRestEncryptionEnabled
to true
when you create the replication group.
Required: Only available when creating a replication group in an Amazon VPC using redis version
3.2.6
,4.x
or later.
ARN (string) --
The ARN (Amazon Resource Name) of the global replication group.
Exceptions
ElastiCache.Client.exceptions.GlobalReplicationGroupNotFoundFault
ElastiCache.Client.exceptions.InvalidGlobalReplicationGroupStateFault
ElastiCache.Client.exceptions.InvalidParameterValueException
ElastiCache.Client.exceptions.InvalidParameterCombinationException