CloudWatch: Add DynamoDB Accelerator (DAX) metrics & dimensions (#21644)

Closes #10494

pkg/tsdb/cloudwatch/metric_find_query.go

@@ -58,6 +58,7 @@ func init() {
 		"AWS/DMS":               {"CDCChangesDiskSource", "CDCChangesDiskTarget", "CDCChangesMemorySource", "CDCChangesMemoryTarget", "CDCIncomingChanges", "CDCLatencySource", "CDCLatencyTarget", "CDCThroughputBandwidthSource", "CDCThroughputBandwidthTarget", "CDCThroughputRowsSource", "CDCThroughputRowsTarget", "CPUUtilization", "FreeStorageSpace", "FreeableMemory", "FullLoadThroughputBandwidthSource", "FullLoadThroughputBandwidthTarget", "FullLoadThroughputRowsSource", "FullLoadThroughputRowsTarget", "NetworkReceiveThroughput", "NetworkTransmitThroughput", "ReadIOPS", "ReadLatency", "ReadThroughput", "SwapUsage", "WriteIOPS", "WriteLatency", "WriteThroughput"},
 		"AWS/DocDB":             {"BackupRetentionPeriodStorageUsed", "BufferCacheHitRatio", "CPUUtilization", "DatabaseConnections", "DBInstanceReplicaLag", "DBClusterReplicaLagMaximum", "DBClusterReplicaLagMinimum", "DiskQueueDepth", "EngineUptime", "FreeableMemory", "FreeLocalStorage", "NetworkReceiveThroughput", "NetworkThroughput", "NetworkTransmitThroughput", "ReadIOPS", "ReadLatency", "ReadThroughput", "SnapshotStorageUsed", "SwapUsage", "TotalBackupStorageBilled", "VolumeBytesUsed", "VolumeReadIOPs", "VolumeWriteIOPs", "WriteIOPS", "WriteLatency", "WriteThroughput"},
 		"AWS/DX":                {"ConnectionBpsEgress", "ConnectionBpsIngress", "ConnectionCRCErrorCount", "ConnectionLightLevelRx", "ConnectionLightLevelTx", "ConnectionPpsEgress", "ConnectionPpsIngress", "ConnectionState"},
+		"AWS/DAX":               {"CPUUtilization", "NetworkPacketsIn", "NetworkPacketsOut", "GetItemRequestCount", "BatchGetItemRequestCount", "BatchWriteItemRequestCount", "DeleteItemRequestCount", "PutItemRequestCount", "UpdateItemRequestCount", "TransactWriteItemsCount", "TransactGetItemsCount", "ItemCacheHits", "ItemCacheMisses", "QueryCacheHits", "QueryCacheMisses", "ScanCacheHits", "ScanCacheMisses", "TotalRequestCount", "ErrorRequestCount", "FaultRequestCount", "FailedRequestCount", "QueryRequestCount", "ScanRequestCount", "ClientConnections", "EstimatedDbSize", "EvictedSize"},
 		"AWS/DynamoDB":          {"ConditionalCheckFailedRequests", "ConsumedReadCapacityUnits", "ConsumedWriteCapacityUnits", "OnlineIndexConsumedWriteCapacity", "OnlineIndexPercentageProgress", "OnlineIndexThrottleEvents", "PendingReplicationCount", "ProvisionedReadCapacityUnits", "ProvisionedWriteCapacityUnits", "ReadThrottleEvents", "ReplicationLatency", "ReturnedBytes", "ReturnedItemCount", "ReturnedRecordsCount", "SuccessfulRequestLatency", "SystemErrors", "ThrottledRequests", "TimeToLiveDeletedItemCount", "UserErrors", "WriteThrottleEvents"},
 		"AWS/EBS":               {"BurstBalance", "VolumeConsumedReadWriteOps", "VolumeIdleTime", "VolumeQueueLength", "VolumeReadBytes", "VolumeReadOps", "VolumeThroughputPercentage", "VolumeTotalReadTime", "VolumeTotalWriteTime", "VolumeWriteBytes", "VolumeWriteOps"},
 		"AWS/EC2":               {"CPUCreditBalance", "CPUCreditUsage", "CPUSurplusCreditBalance", "CPUSurplusCreditsCharged", "CPUUtilization", "DiskReadBytes", "DiskReadOps", "DiskWriteBytes", "DiskWriteOps", "EBSByteBalance%", "EBSIOBalance%", "EBSReadBytes", "EBSReadOps", "EBSWriteBytes", "EBSWriteOps", "NetworkIn", "NetworkOut", "NetworkPacketsIn", "NetworkPacketsOut", "StatusCheckFailed", "StatusCheckFailed_Instance", "StatusCheckFailed_System"},
@@ -140,6 +141,7 @@ func init() {
 		"AWS/DMS":               {"ReplicationInstanceIdentifier", "ReplicationTaskIdentifier"},
 		"AWS/DocDB":             {"DBClusterIdentifier"},
 		"AWS/DX":                {"ConnectionId"},
+		"AWS/DAX":               {"Account", "ClusterId", "NodeId"},
 		"AWS/DynamoDB":          {"GlobalSecondaryIndexName", "Operation", "ReceivingRegion", "StreamLabel", "TableName"},
 		"AWS/EBS":               {"VolumeId"},
 		"AWS/EC2":               {"AutoScalingGroupName", "ImageId", "InstanceId", "InstanceType"},