AWS Elastic Cache

Amazon ElastiCache makes it easy to set up, manage, and scale distributed in-memory cache environments in the AWS Cloud.

Features include:

High performance, resizable, and cost-effective in-memory cache.
Reduced complexity associated with deploying and managing a distributed cache environment.
Works with Redis and Memcached engines.

Use the AWS public cloud integration to discover and collect metrics against the AWS service.

External reference

Amazon ElastiCache

Setup

To set up the AWS integration and discover the AWS service, go to AWS Integration Discovery Profile and select Elastic Cache.

Event support

CloudTrail event support

Supported
Configurable in OpsRamp AWS Integration Discovery Profile.

CloudWatch alarm support

Supported
Configurable in OpsRamp AWS Integration Discovery Profile.

Supported metrics

OpsRamp Metric	AWS Metric	Metric Display Name	Unit	Aggregation Type	Description
aws_elasticache_CPUUtilization	CPUUtilization	CPU Utilization	Percent	Average	The percentage of CPU utilization for the entire host. Because Valkey and Redis OSS are single-threaded, we recommend you monitor EngineCPUUtilization metric for nodes with 4 or more vCPUs.
aws_elasticache_CPUCreditBalance	CPUCreditBalance	CPU Credit Balance	None	Average	The number of earned CPU credits that an instance has accrued since it was launched or started. For T2 Standard, the CPUCreditBalance also includes the number of launch credits that have been accrued.
aws_elasticache_CPUCreditUsage	CPUCreditUsage	CPU Credit Usage	None	Average	The number of CPU credits spent by the instance for CPU utilization. One CPU credit equals one vCPU running at 100% utilization for one minute.
aws_elasticache_FreeableMemory	FreeableMemory	Freeable Memory	Bytes	Average	The amount of free memory available on the host. This is derived from the RAM, buffers, and cache that the OS reports as freeable.
aws_elasticache_NetworkBytesIn	NetworkBytesIn	Network Bytes In	Bytes	Average	The number of bytes the host has read from the network.
aws_elasticache_NetworkBytesOut	NetworkBytesOut	Network Bytes Out	Bytes	Average	The number of bytes sent out on all network interfaces by the instance.
aws_elasticache_NetworkPacketsIn	NetworkPacketsIn	Network Packets In	Count	Average	The number of packets received on all network interfaces by the instance. This metric identifies the volume of incoming traffic in terms of the number of packets on a single instance.
aws_elasticache_NetworkPacketsOut	NetworkPacketsOut	Network Packets Out	Count	Average	The number of packets sent out on all network interfaces by the instance. This metric identifies the volume of outgoing traffic in terms of the number of packets on a single instance.
aws_elasticache_NetworkBandwidthInAllowanceExceeded	NetworkBandwidthInAllowanceExceeded	Network Bandwidth In Allowance Exceeded	Count	Average	The number of packets queued or dropped because the inbound aggregate bandwidth exceeded the maximum for the instance.
aws_elasticache_NetworkConntrackAllowanceExceeded	NetworkConntrackAllowanceExceeded	Network Conntrack Allowance Exceeded	Count	Average	The number of packets dropped because connection tracking exceeded the maximum for the instance and new connections could not be established.
aws_elasticache_NetworkBandwidthOutAllowanceExceeded	NetworkBandwidthOutAllowanceExceeded	Network Bandwidth Out Allowance Exceeded	Count	Average	The number of packets queued or dropped because the outbound aggregate bandwidth exceeded the maximum for the instance.
aws_elasticache_NetworkPacketsPerSecondAllowanceExceeded	NetworkPacketsPerSecondAllowanceExceeded	Network Packets Per Second Allowance Exceeded	Count	Average	The number of packets queued or dropped because the bidirectional packets per second exceeded the maximum for the instance.
aws_elasticache_NetworkMaxBytesIn	NetworkMaxBytesIn	Network Max Bytes In	Bytes	Average	The maximum per second burst of received bytes within each minute.
aws_elasticache_NetworkMaxBytesOut	NetworkMaxBytesOut	Network Max Bytes Out	Bytes	Average	The maximum per second burst of transmitted bytes within each minute.
aws_elasticache_NetworkMaxPacketsIn	NetworkMaxPacketsIn	Network Max Packets In	Count	Average	The maximum per second burst received packets within each minute.
aws_elasticache_NetworkMaxPacketsOut	NetworkMaxPacketsOut	Network Max Packets Out	Count	Average	The maximum per second burst of transmitted packets within each minute.
aws_elasticache_SwapUsage	SwapUsage	Swap Usage	Bytes	Average	The amount of swap used on the host.
aws_elasticache_ClusterBasedCmds	ClusterBasedCmds	Cluster Based Cmds	Count	Average	The total number of commands that are cluster-based. This is derived from the commandstats statistic by summing all of the commands that act upon a cluster (cluster slot, cluster info, and so on).
aws_elasticache_ClusterBasedCmdsLatency	ClusterBasedCmdsLatency	Cluster Based Cmds Latency	Microseconds	Average	Latency of cluster-based commands.
aws_elasticache_EvalBasedCmds	EvalBasedCmds	Eval Based Cmds	Count	Average	The total number of commands for eval-based commands. This is derived from the commandstats statistic by summing eval, evalsha.
aws_elasticache_EvalBasedCmdsLatency	EvalBasedCmdsLatency	Eval Based Cmds Latency	Microseconds	Average	Latency of eval-based commands.
aws_elasticache_GeoSpatialBasedCmds	GeoSpatialBasedCmds	Geo Spatial Based Cmds	Count	Average	The total number of commands for geospatial-based commands. This is derived from the commandstats statistic.
aws_elasticache_GeoSpatialBasedCmdsLatency	GeoSpatialBasedCmdsLatency	Geo Spatial Based Cmds Latency	Microseconds	Average	Latency of geospatial-based commands.
aws_elasticache_GetTypeCmds	GetTypeCmds	Get Type Cmds	Count	Average	The total number of read-only type commands. This is derived from the commandstats statistic by summing all of the read-only type commands (get, hget, scard, lrange, and so on.)
aws_elasticache_GetTypeCmdsLatency	GetTypeCmdsLatency	Get Type Cmds Latency	Microseconds	Average	Latency of read commands.
aws_elasticache_HashBasedCmds	HashBasedCmds	Hash Based Cmds	Count	Average	The total number of commands that are hash-based. This is derived from the commandstats statistic by summing all of the commands that act upon one or more hashes.
aws_elasticache_HashBasedCmdsLatency	HashBasedCmdsLatency	Hash Based Cmds Latency	Microseconds	Average	Latency of hash-based commands.
aws_elasticache_HyperLogLogBasedCmds	HyperLogLogBasedCmds	Hyper Log Log Based Cmds	Count	Average	The total number of HyperLogLog-based commands. This is derived from the commandstats statistic by summing all of the pf type of commands.
aws_elasticache_HyperLogLogBasedCmdsLatency	HyperLogLogBasedCmdsLatency	Hyper Log Log Based Cmds Latency	Microseconds	Average	Latency of HyperLogLog-based commands.
aws_elasticache_JsonBasedCmds	JsonBasedCmds	Json Based Cmds	Count	Average	The total number of JSON commands, including both read and write commands. This is derived from the commandstats statistic by summing all JSON commands.
aws_elasticache_JsonBasedCmdsLatency	JsonBasedCmdsLatency	Json Based Cmds Latency	Microseconds	Average	Latency of all JSON commands, including both read and write commands.
aws_elasticache_JsonBasedGetCmds	JsonBasedGetCmds	Json Based Get Cmds	Count	Average	The total number of JSON read-only commands. This is derived from the commandstats statistic by summing all JSON read commands.
aws_elasticache_JsonBasedGetCmdsLatency	JsonBasedGetCmdsLatency	Json Based Get Cmds Latency	Microseconds	Average	Latency of JSON read-only commands.
aws_elasticache_JsonBasedSetCmds	JsonBasedSetCmds	Json Based Set Cmds	Count	Average	The total number of JSON write commands. This is derived from the commandstats statistic by summing all JSON write commands.
aws_elasticache_JsonBasedSetCmdsLatency	JsonBasedSetCmdsLatency	Json Based Set Cmds Latency	Microseconds	Average	Latency of JSON write commands.
aws_elasticache_KeyBasedCmds	KeyBasedCmds	Key Based Cmds	Count	Average	The total number of commands that are key-based. This is derived from the commandstats statistic by summing all of the commands that act upon one or more keys.
aws_elasticache_KeyBasedCmdsLatency	KeyBasedCmdsLatency	Key Based Cmds Latency	Microseconds	Average	Latency of key-based commands.
aws_elasticache_ListBasedCmds	ListBasedCmds	List Based Cmds	Count	Average	The total number of commands that are list-based. This is derived from the commandstats statistic by summing all of the commands that act upon one or more lists.
aws_elasticache_ListBasedCmdsLatency	ListBasedCmdsLatency	List Based Cmds Latency	Microseconds	Average	Latency of list-based commands.
aws_elasticache_NonKeyTypeCmds	NonKeyTypeCmds	Non Key Type Cmds	Count	Average	The total number of commands that are not key-based. This is derived from the commandstats statistic by summing all of the commands that do not act upon a key.
aws_elasticache_NonKeyTypeCmdsLatency	NonKeyTypeCmdsLatency	Non Key Type Cmds Latency	Microseconds	Average	Latency of non-key-based commands.
aws_elasticache_PubSubBasedCmds	PubSubBasedCmds	Pub Sub Based Cmds	Count	Average	The total number of commands for pub/sub functionality. This is derived from the commandstats statistics by summing all of the commands used for pub/sub functionality.
aws_elasticache_PubSubBasedCmdsLatency	PubSubBasedCmdsLatency	Pub Sub Based Cmds Latency	Microseconds	Average	Latency of pub/sub-based commands.
aws_elasticache_SetBasedCmds	SetBasedCmds	Set Based Cmds	Count	Average	The total number of commands that are set-based. This is derived from the commandstats statistic by summing all of the commands that act upon one or more sets.
aws_elasticache_SetBasedCmdsLatency	SetBasedCmdsLatency	Set Based Cmds Latency	Microseconds	Average	Latency of set-based commands.
aws_elasticache_SetTypeCmds	SetTypeCmds	Set Type Cmds	Count	Average	The total number of write types of commands. This is derived from the commandstats statistic by summing all of the mutative types of commands.
aws_elasticache_SetTypeCmdsLatency	SetTypeCmdsLatency	Set Type Cmds Latency	Microseconds	Average	Latency of write commands.
aws_elasticache_SortedSetBasedCmds	SortedSetBasedCmds	Sorted Set Based Cmds	Count	Average	The total number of commands that are sorted set-based. This is derived from the commandstats statistic by summing all of the commands that act upon one or more sorted sets.
aws_elasticache_SortedSetBasedCmdsLatency	SortedSetBasedCmdsLatency	Sorted Set Based Cmds Latency	Microseconds	Average	Latency of sorted-based commands.
aws_elasticache_StringBasedCmds	StringBasedCmds	String Based Cmds	Count	Average	The total number of commands that are string-based. This is derived from the commandstats statistic by summing all of the commands that act upon one or more strings.
aws_elasticache_StringBasedCmdsLatency	StringBasedCmdsLatency	String Based Cmds Latency	Microseconds	Average	Latency of string-based commands.
aws_elasticache_StreamBasedCmds	StreamBasedCmds	Stream Based Cmds	Count	Average	The total number of commands that are stream-based. This is derived from the commandstats statistic by summing all of the commands that act upon one or more streams data types.
aws_elasticache_StreamBasedCmdsLatency	StreamBasedCmdsLatency	Stream Based Cmds Latency	Microseconds	Average	Latency of stream-based commands.
aws_elasticache_SearchBasedCmds	SearchBasedCmds	Search Based Cmds	Count	Average	The total number of Search commands, including both read and write commands. This is derived from the commandstats statistic by summing all Search commands.
aws_elasticache_SearchBasedCmdsLatency	SearchBasedCmdsLatency	Search Based Cmds Latency	Microseconds	Average	Latency of all Search commands, including both read and write commands.
aws_elasticache_SearchBasedGetCmds	SearchBasedGetCmds	Search Based Get Cmds	Count	Average	The total number of Search read-only commands. This is derived from the commandstats statistic by summing all Search read commands.
aws_elasticache_SearchBasedGetCmdsLatency	SearchBasedGetCmdsLatency	Search Based Get Cmds Latency	Microseconds	Average	Latency of Search read-only commands.
aws_elasticache_SearchBasedSetCmds	SearchBasedSetCmds	Search Based Set Cmds	Count	Average	The total number of Search write commands. This is derived from the commandstats statistic by summing all Search write commands.
aws_elasticache_SearchBasedSetCmdsLatency	SearchBasedSetCmdsLatency	Search Based Set Cmds Latency	Microseconds	Average	Latency of Search write commands.
aws_elasticache_BytesReadIntoMemcached	BytesReadIntoMemcached	Bytes Read Into Memcached	Bytes	Average	The number of bytes that have been read from the network by the cache node.
aws_elasticache_BytesUsedForCacheItems	BytesUsedForCacheItems	Bytes Used For Cache Items	Bytes	Average	The number of bytes used to store cache items.
aws_elasticache_BytesWrittenOutFromMemcached	BytesWrittenOutFromMemcached	Bytes Written Out From Memcached	Bytes	Average	The number of bytes that have been written to the network by the cache node.
aws_elasticache_CasBadval	CasBadval	Cas Badval	Count	Average	The number of CAS requests the cache has received where the Cas value did not match the Cas value stored.
aws_elasticache_CasHits	CasHits	Cas Hits	Count	Average	The number of Cas requests the cache has received where the requested key was found and the Cas value matched.
aws_elasticache_CasMisses	CasMisses	Cas Misses	Count	Average	The number of Cas requests the cache has received where the key requested was not found.
aws_elasticache_CmdFlush	CmdFlush	Cmd Flush	Count	Average	The number of flush commands the cache has received.
aws_elasticache_CmdGet	CmdGet	Cmd Get	Count	Average	The number of get commands the cache has received.
aws_elasticache_CmdSet	CmdSet	Cmd Set	Count	Average	The number of set commands the cache has received.
aws_elasticache_CurrConnections	CurrConnections	Curr Connections	Count	Average	A count of the number of connections connected to the cache at an instant in time.
aws_elasticache_CurrItems	CurrItems	Curr Items	Count	Average	A count of the number of items currently stored in the cache.
aws_elasticache_DecrHits	DecrHits	Decr Hits	Count	Average	The number of decrement requests the cache has received where the requested key was found.
aws_elasticache_DecrMisses	DecrMisses	Decr Misses	Count	Average	The number of decrement requests the cache has received where the requested key was not found.
aws_elasticache_DeleteHits	DeleteHits	Delete Hits	Count	Average	The number of delete requests the cache has received where the requested key was found.
aws_elasticache_DeleteMisses	DeleteMisses	Delete Misses	Count	Average	The number of delete requests the cache has received where the requested key was not found.
aws_elasticache_Evictions	Evictions	Evictions	Count	Average	The number of non-expired items the cache evicted to allow space for new writes.
aws_elasticache_GetHits	GetHits	Get Hits	Count	Average	The number of get requests the cache has received where the key requested was found.
aws_elasticache_GetMisses	GetMisses	Get Misses	Count	Average	The number of get requests the cache has received where the key requested was not found.
aws_elasticache_IncrHits	IncrHits	Incr Hits	Count	Average	The number of increment requests the cache has received where the key requested was found.
aws_elasticache_IncrMisses	IncrMisses	Incr Misses	Count	Average	The number of increment requests the cache has received where the key requested was not found.
aws_elasticache_Reclaimed	Reclaimed	Reclaimed	Count	Average	The number of expired items the cache evicted to allow space for new writes.
aws_elasticache_BytesUsedForHash	BytesUsedForHash	Bytes Used For Hash	Bytes	Average	The number of bytes currently used by hash tables.
aws_elasticache_CmdConfigGet	CmdConfigGet	Cmd Config Get	Count	Average	The cumulative number of config get requests.
aws_elasticache_CmdConfigSet	CmdConfigSet	Cmd Config Set	Count	Average	The cumulative number of config set requests.
aws_elasticache_CmdTouch	CmdTouch	Cmd Touch	Count	Average	The cumulative number of touch requests.
aws_elasticache_CurrConfig	CurrConfig	Curr Config	Count	Average	The current number of configurations stored.
aws_elasticache_EvictedUnfetched	EvictedUnfetched	Evicted Unfetched	Count	Average	The number of valid items evicted from the least recently used cache (LRU) which were never touched after being set.
aws_elasticache_ExpiredUnfetched	ExpiredUnfetched	Expired Unfetched	Count	Average	The number of expired items reclaimed from the LRU which were never touched after being set.
aws_elasticache_SlabsMoved	SlabsMoved	Slabs Moved	Count	Average	The total number of slab pages that have been moved.
aws_elasticache_TouchHits	TouchHits	Touch Hits	Count	Average	The number of keys that have been touched and were given a new expiration time.
aws_elasticache_TouchMisses	TouchMisses	Touch Misses	Count	Average	The number of items that have been touched, but were not found.
aws_elasticache_NewConnections	NewConnections	New Connections	Count	Average	The number of new connections the cache has received. This is derived from the memcached total connections statistic by recording the change in total connections across a period of time.
aws_elasticache_NewItems	NewItems	New Items	Count	Average	The number of new items the cache has stored. This is derived from the memcached total items statistic by recording the change in total items across a period of time.
aws_elasticache_UnusedMemory	UnusedMemory	Unused Memory	Bytes	Average	The amount of memory not used by data. This is derived from the Memcached statistics limit maxbytes and bytes by subtracting bytes from limit maxbytes.
aws_elasticache_ActiveDefragHits	ActiveDefragHits	Active Defrag Hits	Count	Average	The number of value reallocations per minute performed by the active defragmentation process.
aws_elasticache_AuthenticationFailures	AuthenticationFailures	Authentication Failures	Count	Average	The total number of failed attempts to authenticate using AUTH command.
aws_elasticache_BytesUsedForCache	BytesUsedForCache	Bytes Used For Cache	Bytes	Average	The total number of bytes allocated by Valkey or Redis OSS for all purposes.
aws_elasticache_BytesReadFromDisk	BytesReadFromDisk	Bytes Read From Disk	Bytes	Average	The total number of bytes read from disk per minute. Data tiering only.
aws_elasticache_BytesWrittenToDisk	BytesWrittenToDisk	Bytes Written To Disk	Bytes	Average	The total number of bytes written to disk per minute. Data tiering only.
aws_elasticache_CacheHits	CacheHits	Cache Hits	Count	Average	The number of successful read-only key lookups in the main dictionary.
aws_elasticache_CacheMisses	CacheMisses	Cache Misses	Count	Average	The number of unsuccessful read-only key lookups in the main dictionary.
aws_elasticache_CommandAuthorizationFailures	CommandAuthorizationFailures	Command Authorization Failures	Count	Average	The total number of failed attempts by users to run commands without permission.
aws_elasticache_CacheHitRate	CacheHitRate	Cache Hit Rate	Percent	Average	Indicates the usage efficiency of the instance. Calculated as cache_hits/(cache_hits + cache_misses).
aws_elasticache_ChannelAuthorizationFailures	ChannelAuthorizationFailures	Channel Authorization Failures	Count	Average	The total number of failed attempts by users to access channels without permission.
aws_elasticache_CurrConnections	CurrConnections	Curr Connections	Count	Average	The number of client connections, excluding read replicas.
aws_elasticache_CurrItems	CurrItems	Curr Items	Count	Average	The number of items in the cache. Dimension Tier: Memory or SSD items.
aws_elasticache_CurrVolatileItems	CurrVolatileItems	Curr Volatile Items	Count	Average	Total number of keys in all databases that have a ttl set.
aws_elasticache_DatabaseCapacityUsagePercentage	DatabaseCapacityUsagePercentage	Database Capacity Usage Percentage	Percent	Average	Percentage of the total data capacity for the cluster that is in use.
aws_elasticache_DatabaseCapacityUsageCountedForEvictPercentage	DatabaseCapacityUsageCountedForEvictPercentage	Database Capacity Usage Counted For Evict Percentage	Percent	Average	Percentage of data capacity in use, excluding memory for overhead and COB.
aws_elasticache_DatabaseMemoryUsagePercentage	DatabaseMemoryUsagePercentage	Database Memory Usage Percentage	Percent	Average	Percentage of the memory for the cluster that is in use.
aws_elasticache_DatabaseMemoryUsageCountedForEvictPercentage	DatabaseMemoryUsageCountedForEvictPercentage	Database Memory Usage Counted For Evict Percentage	Percent	Average	Percentage of memory in use, excluding memory for overhead and COB.
aws_elasticache_DB0AverageTTL	DB0AverageTTL	DB0Average TTL	Milliseconds	Average	Exposes avg_ttl of DB0 from the keyspace statistic of INFO command.
aws_elasticache_EngineCPUUtilization	EngineCPUUtilization	Engine CPU Utilization	Percent	Average	Provides CPU utilization of the Valkey or Redis OSS engine thread.
aws_elasticache_Evictions	Evictions	Evictions	Count	Average	The number of keys that have been evicted due to the maxmemory limit.
aws_elasticache_GlobalDatastoreReplicationLag	GlobalDatastoreReplicationLag	Global Datastore Replication Lag	Seconds	Average	The lag between the secondary Region and the primary Region primary node.
aws_elasticache_IamAuthenticationExpirations	IamAuthenticationExpirations	Iam Authentication Expirations	Count	Average	The total number of expired IAM-authenticated connections.
aws_elasticache_IamAuthenticationThrottling	IamAuthenticationThrottling	Iam Authentication Throttling	Count	Average	The total number of throttled IAM-authenticated AUTH or HELLO requests.
aws_elasticache_IsMaster	IsMaster	Is Master	Count	Average	Indicates whether the node is the primary node. 0=not primary, 1=primary.
aws_elasticache_KeyAuthorizationFailures	KeyAuthorizationFailures	Key Authorization Failures	Count	Average	The total number of failed attempts by users to access keys without permission.
aws_elasticache_KeysTracked	KeysTracked	Keys Tracked	Count	Average	The number of keys being tracked by key tracking as a percentage of tracking-table-max-keys.
aws_elasticache_MemoryFragmentationRatio	MemoryFragmentationRatio	Memory Fragmentation Ratio	Count	Average	Indicates the efficiency in the allocation of memory. Recommended value is above 1.0.
aws_elasticache_NewConnections	NewConnections	New Connections	Count	Average	The total number of connections that have been accepted by the server during this period.
aws_elasticache_NumItemsReadFromDisk	NumItemsReadFromDisk	Num Items Read From Disk	Count	Average	The total number of items retrieved from disk per minute. Data tiering only.
aws_elasticache_NumItemsWrittenToDisk	NumItemsWrittenToDisk	Num Items Written To Disk	Count	Average	The total number of items written to disk per minute. Data tiering only.
aws_elasticache_MasterLinkHealthStatus	MasterLinkHealthStatus	Master Link Health Status	None	Average	Status indicating if primary data is in sync. 0=not in sync, 1=in sync.
aws_elasticache_Reclaimed	Reclaimed	Reclaimed	Count	Average	The total number of key expiration events.
aws_elasticache_ReplicationBytes	ReplicationBytes	Replication Bytes	Bytes	Average	For replicated nodes, the number of bytes the primary is sending to all replicas.
aws_elasticache_ReplicationLag	ReplicationLag	Replication Lag	Seconds	Average	How far behind in seconds the replica is in applying changes from the primary.
aws_elasticache_SaveInProgress	SaveInProgress	Save In Progress	None	Average	Returns 1 when background save (snapshot/sync) is in progress, 0 otherwise.
aws_elasticache_TrafficManagementActive	TrafficManagementActive	Traffic Management Active	None	Average	Indicates whether traffic management is actively adjusting incoming commands.
aws_elasticache_SuccessfulWriteRequestLatency	SuccessfulWriteRequestLatency	Successful Write Request Latency	Microseconds	Average	Latency of successful write requests.
aws_elasticache_SuccessfulReadRequestLatency	SuccessfulReadRequestLatency	Successful Read Request Latency	Microseconds	Average	Latency of successful read requests.
aws_elasticache_ErrorCount	ErrorCount	Error Count	Count	Average	The total number of failed commands during the specified time period.
aws_elasticache_SearchNumberOfIndexes	SearchNumberOfIndexes	Search Number Of Indexes	Count	Average	Number of created indexes.
aws_elasticache_SearchTotalIndexedDocuments	SearchTotalIndexedDocuments	Search Total Indexed Documents	Count	Average	Total number of keys in all indexes.
aws_elasticache_SearchUsedMemoryBytes	SearchUsedMemoryBytes	Search Used Memory Bytes	Bytes	Average	Number of bytes of memory consumed in all search data structures.

AWS Elastic Cache Node Metrics

OpsRamp Metric	Metric Display Name	Unit	Aggregation Type
aws_elasticache_CPUUtilization Percentage of allocated EC2 compute units that are currently in use on the instance. This metric identifies the processing power required to run an application On a selected instance.	CPU utilization	Percent	Average
aws_elasticache_FreeableMemory Amount of available random access memory.	FreeableMemory	Freeable Memory	Sum
aws_elasticache_SwapUsage Amount of swap space used on the DB Instance.	SwapUsage	Swap Usage	Sum
aws_elasticache_GetMisses Number of get requests the cache has received where the key requested was not found.	GetMisses	Count	Sum
aws_elasticache_CmdSet Number of set commands the cache has received.	CmdSet	Count	Sum
aws_elasticache_NewConnections Number of new connections the cache has received. This is derived from the memcached total_connections statistic by recording the change in total_connections across a period of time. Note: Due to a connection reserved for Elastic Cache, a minimum of 1 is always returned.	NewConnections	Count	Sum
aws_elasticache_Reclaimed Number of expired items the cache evicted to allow space for new writes.	Reclaimed	Count	Sum
aws_elasticache_IncrHits Number of increment requests the cache has received where the key requested was found.	IncrHits	Count	Sum
aws_elasticache_CurrConnections Count of the number of connections connected to the cache at an instant in time. Note: Due to the design of Memcached, a minimum count of 10 is always returned.	CurrConnections	Count	Sum
aws_elasticache_CmdFlush Number of flush commands the cache has received.	CmdFlush	Count	Sum
aws_elasticache_DecrHits Number of decrement requests the cache has received where the requested key was found.	DecrHits	Count	Sum
aws_elasticache_UnusedMemory Amount of unused memory the cache can use to store items.	UnusedMemory	Unused Memory	Sum
aws_elasticache_DeleteMisses Number of delete requests the cache has received where the requested key was not found.	DeleteMisses	Count	Sum
aws_elasticache_NewItems Number of new items the cache has stored.	NewItems	Count	Sum
aws_elasticache_CurrItems Count of the number of items currently stored in the cache.	CurrItems	Count	Sum
aws_elasticache_Evictions Number of non-expired items the cache evicted to allow space for new writes.	Evictions	Count	Sum
aws_elasticache_CasMisses Number of Cas requests the cache has received where the key requested was not found.	CasMisses	Count	Sum
aws_elasticache_CmdGet Number of get commands the cache has received.	CmdGet	Count	Sum
aws_elasticache_IncrMisses Number of increment requests the cache has received where the key requested was not found.	IncrMisses	Count	Sum
aws_elasticache_DeleteHits Number of delete requests the cache has received where the requested key was found.	DeleteHits	Count	Sum
aws_elasticache_GetHits Number of get requests the cache has received where the key requested was found.	GetHits	Count	Sum
aws_elasticache_CasBadval Number of CAS (check and set) requests the cache has received where the Cas value did not match the Cas value stored.	CasBadval	Count	Sum
aws_elasticache_DecrMisses Number of decrement requests the cache has received where the requested key was not found.	DecrMisses	Count	Sum
aws_elasticache_BytesReadIntoMemcached Number of bytes read from the network by the cache node.	BytesReadIntoMemcached	Bytes Read	Sum
aws_elasticache_BytesWrittenOutFromMemcached Number of bytes written to the network by the cache node.	BytesWrittenOutFromMemcached	Bytes Written	Sum
aws_elasticache_BytesUsedForCacheItems Number of bytes written to the network by the cache node.	BytesUsedForCacheItems	Bytes Used	Sum
aws_elasticache_NetworkBytesOut Number of bytes the host has written to the network.	NetworkBytesOut	Bytes	Sum
aws_elasticache_NetworkBytesIn Number of bytes the host has read from the network.	NetworkBytesIn	Bytes	Sum
aws_elasticache_BytesUsedForHash Number of bytes currently used by hash tables.	BytesUsedForHash	Bytes Used	Sum
aws_elasticache_CmdConfigGet Cumulative number of config get requests.	CmdConfigGet	Count	Sum
aws_elasticache_CasHits Number of Cas requests the cache has received where the requested key was found and the Cas value matched.	CasHits	Count	Sum
aws_elasticache_CmdConfigSet Cumulative number of config set requests.	CmdConfigSet	Count	Sum
aws_elasticache_CmdTouch Cumulative number of touch requests.	CmdTouch	Count	Sum
aws_elasticache_CurrConfig Current number of configurations stored.	CurrConfig	Count	Sum
aws_elasticache_EvictedUnfetched Number of valid items evicted from the least recently used cache (LRU) which were never touched after being set.	EvictedUnfetched	Count	Sum
aws_elasticache_ExpiredUnfetched Number of expired items reclaimed from the LRU which were never touched after being set.	ExpiredUnfetched	Count	Sum
aws_elasticache_SlabsMoved Total number of slab pages moved.	SlabsMoved	Count	Sum
aws_elasticache_TouchHits Number of keys touched and were given a new expiration time.	TouchHits	Count	Sum
aws_elasticache_TouchMisses Number of items touched but not found.	TouchMisses	Count	Sum