Class: Aws::ElastiCache::Types::CacheNode

Inherits:
Struct
  • Object
show all
Includes:
Structure
Defined in:
lib/aws-sdk-elasticache/types.rb

Overview

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 or Redis.

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:

      **T2 node types:** ‘cache.t2.micro`, `cache.t2.small`, `cache.t2.medium`

      **M3 node types:** ‘cache.m3.medium`, `cache.m3.large`, `cache.m3.xlarge`, `cache.m3.2xlarge`

      **M4 node types:** ‘cache.m4.large`, `cache.m4.xlarge`, `cache.m4.2xlarge`, `cache.m4.4xlarge`, `cache.m4.10xlarge`

    • Previous generation: (not recommended)

      **T1 node types:** ‘cache.t1.micro`

      **M1 node types:** ‘cache.m1.small`, `cache.m1.medium`, `cache.m1.large`, `cache.m1.xlarge`

  • Compute optimized:

    • Previous generation: (not recommended)

      **C1 node types:** ‘cache.c1.xlarge`

  • Memory optimized:

    • Current generation:

      **R3 node types:** ‘cache.r3.large`, `cache.r3.xlarge`, `cache.r3.2xlarge`, `cache.r3.4xlarge`, `cache.r3.8xlarge`

      **R4 node types;** ‘cache.r4.large`, `cache.r4.xlarge`, `cache.r4.2xlarge`, `cache.r4.4xlarge`, `cache.r4.8xlarge`, `cache.r4.16xlarge`

    • Previous generation: (not recommended)

      **M2 node types:** ‘cache.m2.xlarge`, `cache.m2.2xlarge`, `cache.m2.4xlarge`

Notes:

  • All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).

  • Redis (cluster mode disabled): Redis backup/restore is not supported on T1 and T2 instances.

  • Redis (cluster mode enabled): Backup/restore is not supported on T1 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][1
  • Cache Node Type-Specific Parameters for Memcached][2
  • Cache Node Type-Specific Parameters for Redis][3

[1]: aws.amazon.com/elasticache/details [2]: docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/ParameterGroups.Memcached.html#ParameterGroups.Memcached.NodeSpecific [3]: docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/ParameterGroups.Redis.html#ParameterGroups.Redis.NodeSpecific

See Also:

Instance Attribute Summary collapse

Instance Attribute Details

#cache_node_create_time ⇒ Time

The date and time when the cache node was created.

Returns:

  • (Time) 


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# File 'lib/aws-sdk-elasticache/types.rb', line 610

class CacheNode < Struct.new(
  :cache_node_id,
  :cache_node_status,
  :cache_node_create_time,
  :endpoint,
  :parameter_group_status,
  :source_cache_node_id,
  :customer_availability_zone)
  include Aws::Structure
end

#cache_node_id ⇒ String

The cache node identifier. A node ID is a numeric identifier (0001, 0002, etc.). The combination of cluster ID and node ID uniquely identifies every cache node used in a customer’s AWS account.

Returns:

  • (String) 


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# File 'lib/aws-sdk-elasticache/types.rb', line 610

class CacheNode < Struct.new(
  :cache_node_id,
  :cache_node_status,
  :cache_node_create_time,
  :endpoint,
  :parameter_group_status,
  :source_cache_node_id,
  :customer_availability_zone)
  include Aws::Structure
end

#cache_node_status ⇒ String

The current state of this cache node.

Returns:

  • (String) 


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# File 'lib/aws-sdk-elasticache/types.rb', line 610

class CacheNode < Struct.new(
  :cache_node_id,
  :cache_node_status,
  :cache_node_create_time,
  :endpoint,
  :parameter_group_status,
  :source_cache_node_id,
  :customer_availability_zone)
  include Aws::Structure
end

#customer_availability_zone ⇒ String

The Availability Zone where this node was created and now resides.

Returns:

  • (String) 


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# File 'lib/aws-sdk-elasticache/types.rb', line 610

class CacheNode < Struct.new(
  :cache_node_id,
  :cache_node_status,
  :cache_node_create_time,
  :endpoint,
  :parameter_group_status,
  :source_cache_node_id,
  :customer_availability_zone)
  include Aws::Structure
end

#endpoint ⇒ Types::Endpoint

The hostname for connecting to this cache node.

Returns:



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# File 'lib/aws-sdk-elasticache/types.rb', line 610

class CacheNode < Struct.new(
  :cache_node_id,
  :cache_node_status,
  :cache_node_create_time,
  :endpoint,
  :parameter_group_status,
  :source_cache_node_id,
  :customer_availability_zone)
  include Aws::Structure
end

#parameter_group_status ⇒ String

The status of the parameter group applied to this cache node.

Returns:

  • (String) 


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# File 'lib/aws-sdk-elasticache/types.rb', line 610

class CacheNode < Struct.new(
  :cache_node_id,
  :cache_node_status,
  :cache_node_create_time,
  :endpoint,
  :parameter_group_status,
  :source_cache_node_id,
  :customer_availability_zone)
  include Aws::Structure
end

#source_cache_node_id ⇒ String

The ID of the primary node to which this read replica node is synchronized. If this field is empty, this node is not associated with a primary cluster.

Returns:

  • (String) 


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# File 'lib/aws-sdk-elasticache/types.rb', line 610

class CacheNode < Struct.new(
  :cache_node_id,
  :cache_node_status,
  :cache_node_create_time,
  :endpoint,
  :parameter_group_status,
  :source_cache_node_id,
  :customer_availability_zone)
  include Aws::Structure
end