This topic describes the metrics for storage nodes in PolarDB-X V2.0 instances.

When you call an API operation provided by CloudMonitor, set the Namespace and Period parameters.

  • Set the Namespace parameter to acs_drds.
  • Set the Period parameter to an integral multiple of 60. The default value is 60. Unit: seconds.

The following table describes the valid values of the MetricName and Dimensions parameters.

Metric Unit MetricName Dimensions Statistics
PolarDBX_DN_ConnUsage % ConnUsageOfDN userId and instanceId Average
PolarDBX_DN_MemUsage % MemUsageOfDN userId and instanceId Average
PolarDBX_DN_NetworkOutRate bit/s NetworkOutDN userId and instanceId Average
PolarDBX_DN_NetworkInRate bit/s NetworkInDN userId and instanceId Average
PolarDBX_DN_SlowQueries count/s SlowQueriesOfDN userId and instanceId Average
PolarDBX_DN_TempDiskTableCreates count/s TempDiskTableCreatesOfDN userId and instanceId Average
PolarDBX_DN_ThreadsConnected count ThreadsConnectedOfDN userId and instanceId Average
PolarDBX_DN_ThreadsRunning count ThreadsRunningOfDN userId and instanceId Average
PolarDBX_DN_ActiveSessions count ActiveSessionsOfDN userId and instanceId Average
PolarDBX_DN_TmpDiskSize MB TmpDiskSizeOfDN userId and instanceId Average
PolarDBX_DN_DiskSize MB DiskSizeOfDN userId and instanceId Average
PolarDBX_DN_DiskUsage % DiskUsageOfDN userId and instanceId Average
PolarDBX_DN_IOPSUsage % IOPSUsageOfDN userId and instanceId Average
PolarDBX_DN_IbufDirtyRatio % IbufDirtyRatioOfDN userId and instanceId Average
PolarDBX_DN_IbufReadHit % IbufReadHitOfDN userId and instanceId Average
PolarDBX_DN_IbufUseRatio % IbufUseRatioOfDN userId and instanceId Average
PolarDBX_DN_LogDiskSize MB LogDiskSizeOfDN userId and instanceId Average
PolarDBX_DN_CPUUsage % CPUUsageOfDN userId and instanceId Average