Cloudwatch: Adding support for Amazon ElastiCache Redis metrics. (#28040)

* Cloudwatch: Adding support for Amazon ElastiCache Redis metrics.

pkg/tsdb/cloudwatch/metric_find_query.go

@@ -73,7 +73,7 @@ var metricsMap = map[string][]string{
 	"AWS/EFS":               {"BurstCreditBalance", "ClientConnections", "DataReadIOBytes", "DataWriteIOBytes", "MetadataIOBytes", "PercentIOLimit", "PermittedThroughput", "TotalIOBytes"},
 	"AWS/ELB":               {"BackendConnectionErrors", "EstimatedALBActiveConnectionCount", "EstimatedALBConsumedLCUs", "EstimatedALBNewConnectionCount", "EstimatedProcessedBytes", "HTTPCode_Backend_2XX", "HTTPCode_Backend_3XX", "HTTPCode_Backend_4XX", "HTTPCode_Backend_5XX", "HTTPCode_ELB_4XX", "HTTPCode_ELB_5XX", "HealthyHostCount", "Latency", "RequestCount", "SpilloverCount", "SurgeQueueLength", "UnHealthyHostCount"},
 	"AWS/ES":                {"AutomatedSnapshotFailure", "CPUCreditBalance", "CPUUtilization", "ClusterIndexWritesBlocked", "ClusterStatus.green", "ClusterStatus.red", "ClusterStatus.yellow", "ClusterUsedSpace", "DeletedDocuments", "DiskQueueDepth", "ElasticsearchRequests", "FreeStorageSpace", "IndexingLatency", "IndexingRate", "InvalidHostHeaderRequests", "JVMGCOldCollectionCount", "JVMGCOldCollectionTime", "JVMGCYoungCollectionCount", "JVMGCYoungCollectionTime", "JVMMemoryPressure", "KMSKeyError", "KMSKeyInaccessible", "KibanaHealthyNodes", "MasterCPUCreditBalance", "MasterCPUUtilization", "MasterFreeStorageSpace", "MasterJVMMemoryPressure", "MasterReachableFromNode", "Nodes", "ReadIOPS", "ReadLatency", "ReadThroughput", "RequestCount", "SearchLatency", "SearchRate", "SearchableDocuments", "SysMemoryUtilization", "ThreadpoolBulkQueue", "ThreadpoolBulkRejected", "ThreadpoolBulkThreads", "ThreadpoolForce_mergeQueue", "ThreadpoolForce_mergeRejected", "ThreadpoolForce_mergeThreads", "ThreadpoolIndexQueue", "ThreadpoolIndexRejected", "ThreadpoolIndexThreads", "ThreadpoolSearchQueue", "ThreadpoolSearchRejected", "ThreadpoolSearchThreads", "WriteIOPS", "WriteLatency", "WriteThroughput"},
-	"AWS/ElastiCache":       {"ActiveDefragHits", "BytesReadIntoMemcached", "BytesUsedForCache", "BytesUsedForCacheItems", "BytesUsedForHash", "BytesWrittenOutFromMemcached", "CPUUtilization", "CacheHits", "CacheMisses", "CasBadval", "CasHits", "CasMisses", "CmdConfigGet", "CmdConfigSet", "CmdFlush", "CmdGet", "CmdSet", "CmdTouch", "CurrConfig", "CurrConnections", "CurrItems", "DecrHits", "DecrMisses", "DeleteHits", "DeleteMisses", "EngineCPUUtilization", "EvictedUnfetched", "Evictions", "ExpiredUnfetched", "FreeableMemory", "GetHits", "GetMisses", "GetTypeCmds", "HashBasedCmds", "HyperLogLogBasedCmds", "IncrHits", "IncrMisses", "KeyBasedCmds", "ListBasedCmds", "NetworkBytesIn", "NetworkBytesOut", "NewConnections", "NewItems", "Reclaimed", "ReplicationBytes", "ReplicationLag", "SaveInProgress", "SetBasedCmds", "SetTypeCmds", "SlabsMoved", "SortedSetBasedCmds", "StringBasedCmds", "SwapUsage", "TouchHits", "TouchMisses", "UnusedMemory"},
+	"AWS/ElastiCache":       {"ActiveDefragHits", "BytesReadIntoMemcached", "BytesUsedForCache", "BytesUsedForCacheItems", "BytesUsedForHash", "BytesWrittenOutFromMemcached", "CPUUtilization", "CacheHitRate", "CacheHits", "CacheMisses", "CasBadval", "CasHits", "CasMisses", "CmdConfigGet", "CmdConfigSet", "CmdFlush", "CmdGet", "CmdSet", "CmdTouch", "CurrConfig", "CurrConnections", "CurrItems", "DB0AverageTTL", "DatabaseMemoryUsagePercentage", "DecrHits", "DecrMisses", "DeleteHits", "DeleteMisses", "EngineCPUUtilization", "EvalBasedCmds", "EvalBasedCmdsLatency", "EvictedUnfetched", "Evictions", "ExpiredUnfetched", "FreeableMemory", "GeoSpatialBasedCmds", "GeoSpatialBasedCmdsLatency", "GetHits", "GetMisses", "GetTypeCmds", "GetTypeCmdsLatency", "HashBasedCmds", "HashBasedCmdsLatency", "HyperLogLogBasedCmds", "HyperLogLogBasedCmdsLatency", "IncrHits", "IncrMisses", "KeyBasedCmds", "KeyBasedCmdsLatency", "ListBasedCmds", "ListBasedCmdsLatency", "MasterLinkHealthStatus", "MemoryFragmentationRatio", "NetworkBytesIn", "NetworkBytesOut", "NewConnections", "NewItems", "PubSubBasedCmds", "PubSubBasedCmdsLatency", "Reclaimed", "ReplicationBytes", "ReplicationLag", "SaveInProgress", "SetBasedCmds", "SetBasedCmdsLatency", "SetTypeCmds", "SetTypeCmdsLatency", "SlabsMoved", "SortedSetBasedCmds", "SortedSetBasedCmdsLatency", "StreamBasedCmds", "StreamBasedCmdsLatency", "StringBasedCmds", "StringBasedCmdsLatency", "SwapUsage", "TouchHits", "TouchMisses", "UnusedMemory"},
 	"AWS/ElasticBeanstalk":  {"ApplicationLatencyP10", "ApplicationLatencyP50", "ApplicationLatencyP75", "ApplicationLatencyP85", "ApplicationLatencyP90", "ApplicationLatencyP95", "ApplicationLatencyP99", "ApplicationLatencyP99.9", "ApplicationRequests2xx", "ApplicationRequests3xx", "ApplicationRequests4xx", "ApplicationRequests5xx", "ApplicationRequestsTotal", "CPUIdle", "CPUIowait", "CPUIrq", "CPUNice", "CPUSoftirq", "CPUSystem", "CPUUser", "EnvironmentHealth", "InstanceHealth", "InstancesDegraded", "InstancesInfo", "InstancesNoData", "InstancesOk", "InstancesPending", "InstancesSevere", "InstancesUnknown", "InstancesWarning", "LoadAverage1min", "LoadAverage5min", "RootFilesystemUtil"},
 	"AWS/ElasticInference":  {"AcceleratorHealthCheckFailed", "AcceleratorMemoryUsage", "ConnectivityCheckFailed"},
 	"AWS/ElasticMapReduce":  {"AppsCompleted", "AppsFailed", "AppsKilled", "AppsPending", "AppsRunning", "AppsSubmitted", "BackupFailed", "CapacityRemainingGB", "Cluster Status", "ContainerAllocated", "ContainerPending", "ContainerPendingRatio", "ContainerReserved", "CoreNodesPending", "CoreNodesRunning", "CorruptBlocks", "DfsPendingReplicationBlocks", "HBase", "HDFSBytesRead", "HDFSBytesWritten", "HDFSUtilization", "HbaseBackupFailed", "IO", "IsIdle", "JobsFailed", "JobsRunning", "LiveDataNodes", "LiveTaskTrackers", "MRActiveNodes", "MRDecommissionedNodes", "MRLostNodes", "MRRebootedNodes", "MRTotalNodes", "MRUnhealthyNodes", "Map/Reduce", "MapSlotsOpen", "MapTasksRemaining", "MapTasksRunning", "MemoryAllocatedMB", "MemoryAvailableMB", "MemoryReservedMB", "MemoryTotalMB", "MissingBlocks", "MostRecentBackupDuration", "Node Status", "PendingDeletionBlocks", "ReduceSlotsOpen", "ReduceTasksRemaining", "ReduceTasksRunning", "RemainingMapTasksPerSlot", "S3BytesRead", "S3BytesWritten", "TaskNodesPending", "TaskNodesRunning", "TimeSinceLastSuccessfulBackup", "TotalLoad", "UnderReplicatedBlocks", "YARNMemoryAvailablePercentage"},