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Tencent Cloud Observability Platform
    Documentation

    Monitoring Metrics (Memory Edition, 5-Second)

    Last updated: 2022-10-24 11:11:07

      Namespace

      Namespace = QCE/REDIS_MEM

      Monitoring Metrics

      Instance monitoring

      Parameter Metric Name Description Unit Dimension Statistical Period
      CpuUtil CPU utilization The average CPU utilization % instanceid 5s, 60s, 300s, 3600s, 86400s
      CpuMaxUtil Max CPU utilization of node The maximum among all node (shard or replica) CPU utilizations in an instance % instanceid 5s, 60s, 300s, 3600s, 86400s
      MemUsed Used memory The actually used memory capacity, including the capacity for data and cache MB instanceid 5s, 60s, 300s, 3600s, 86400s
      MemUtil Memory utilization The ratio of the actually used memory to the requested total memory % instanceid 5s, 60s, 300s, 3600s, 86400s
      MemMaxUtil Max memory utilization of node The maximum among all node (shard or replica) memory utilizations in an instance % instanceid 5s, 60s, 300s, 3600s, 86400s
      Keys Total keys The total number of keys (level-1 keys) stored in the instance - instanceid 5s, 60s, 300s, 3600s, 86400s
      Expired Expired keys The number of keys expired in a time window, which is equal to the value of expired_keys output by the info command - instanceid 5s, 60s, 300s, 3600s, 86400s
      Evicted Evicted keys The number of keys evicted in a time window, which is equal to the value of evicted_keys output by the info command - instanceid 5s, 60s, 300s, 3600s, 86400s
      Connections Connections The number of TCP connections to the instance - instanceid 5s, 60s, 300s, 3600s, 86400s
      ConnectionsUtil Connection utilization The ratio of the number of TCP connections to the maximum number of connections % instanceid 5s, 60s, 300s, 3600s, 86400s
      InFlow Inbound traffic The private network inbound traffic Mb/s instanceid 5s, 60s, 300s, 3600s, 86400s
      InBandwidthUtil Inbound traffic utilization The ratio of the actually used private inbound traffic to the maximum traffic % instanceid 5s, 60s, 300s, 3600s, 86400s
      InFlowLimit Inbound traffic limit count The number of times inbound traffic triggers a traffic limit - instanceid 5s, 60s, 300s, 3600s, 86400s
      OutFlow Outbound traffic The private network outbound traffic Mb/s instanceid 5s, 60s, 300s, 3600s, 86400s
      OutBandwidthUtil Outbound traffic utilization The ratio of the actually used private outbound traffic to the maximum traffic % instanceid 5s, 60s, 300s, 3600s, 86400s
      OutFlowLimit Outbound traffic limit count The number of times outbound traffic triggers a traffic limit - instanceid 5s, 60s, 300s, 3600s, 86400s
      LatencyAvg Average execution latency The average execution latency between the proxy and the Redis server ms instanceid 5s, 60s, 300s, 3600s, 86400s
      LatencyMax Max execution latency The maximum execution latency between the proxy and the Redis server ms instanceid 5s, 60s, 300s, 3600s, 86400s
      LatencyRead Average read latency The average execution latency of read commands between the proxy and the Redis server ms instanceid 5s, 60s, 300s, 3600s, 86400s
      LatencyWrite Average write latency The average execution latency of write commands between the proxy and the Redis server ms instanceid 5s, 60s, 300s, 3600s, 86400s
      LatencyOther Average latency of other commands The average execution latency of commands (excluding write and read commands) between the proxy and the Redis server ms instanceid 5s, 60s, 300s, 3600s, 86400s
      Commands Total requests The QPS, that is, the number of command executions per second Count/sec instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdRead Read requests The number of read command executions per second Count/sec instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdWrite Write requests The number of write command executions per second Count/sec instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdOther Other requests The number of command (excluding write and read commands) executions per second Count/sec instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdBigValue Big value requests The number of executions of requests larger than 32 KB per second Count/sec instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdKeyCount Key requests The number of keys accessed by a command per second Count/sec instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdMget MGET requests The number of MGET commands executed per second Count/sec instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdSlow Slow queries The number of command executions with a latency greater than the configured slowlog-log-slower-than value - instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdHits Read request hits The number of keys successfully requested by read commands, which is equal to the value of the keyspace_hits metric output by the info command - instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdMiss Read request misses The number of keys unsuccessfully requested by read commands, which is equal to the value of the keyspace_misses metric output by the info command - instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdErr Execution errors The number of command execution errors. For example, the command does not exist, or parameters are incorrect. - instanceid 5s, 60s, 300s, 3600s, 86400s
      CmdHitsRatio Read request hit rate Key hits/(key hits + key misses). This metric reflects cache misses. % instanceid 5s, 60s, 300s, 3600s, 86400s

      Latency metrics (command dimension)

      Parameter Metric Name Description Unit Dimension Statistical Period
      QpsCommand Command executions per second The number of commands executed per second % instanceid, command 5s, 60s, 300s, 3600s, 86400s
      LatencyAvgCommand Average execution latency The average execution latency between the proxy and the Redis server % instanceid, command 5s, 60s, 300s, 3600s, 86400s
      LatencyMaxCommand Max execution delay The maximum execution latency between the proxy and the Redis server % instanceid, command 5s, 60s, 300s, 3600s, 86400s
      LatencyP99Command P99 latency The P99 execution latency between the proxy and the Redis server % instanceid, command 5s, 60s, 300s, 3600s, 86400s

      Proxy node monitoring

      Parameter Metric Name Description Unit Dimension Statistical Period
      CpuUtilProxy CPU utilization The CPU utilization of the proxy % instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      CommandsProxy Total requests The number of proxy commands executed per second Count/sec instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdKeyCountProxy Key requests The number of keys accessed by a command per second Count/sec instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdMgetProxy MGET requests The number of MGET commands executed per second Count/sec instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdErrProxy Execution errors The number of proxy command execution errors. For example, the command does not exist, or parameters are incorrect. - instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdBigValueProxy Big value requests The number of executions of requests larger than 32 KB per second Count/sec instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      ConnectionsProxy Connections The number of TCP connections to the instance - instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      ConnectionsUtilProxy Connection utilization The ratio of the number of TCP connections to the maximum number of connections % instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      InFlowProxy Inbound traffic The private network inbound traffic Mb/s instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      InBandwidthUtilProxy Inbound traffic utilization The ratio of the actually used private inbound traffic to the maximum traffic % instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      InFlowLimitProxy Inbound traffic limit count The number of times inbound traffic triggers a traffic limit - instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      OutFlowProxy Outbound traffic The private network outbound traffic Mb/s instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      OutBandwidthUtilProxy Outbound traffic utilization The ratio of the actually used private outbound traffic to the maximum traffic % instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      OutFlowLimitProxy Outbound traffic limit count The number of times outbound traffic triggers a traffic limit - instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      LatencyAvgProxy Average execution latency The average execution latency between the proxy and the Redis server ms instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      LatencyMaxProxy Max execution latency The maximum execution latency between the proxy and the Redis server ms instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      LatencyReadProxy Average read latency The average execution latency of read commands between the proxy and the Redis server ms instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      LatencyWriteProxy Average write latency The average execution latency of write commands between the proxy and the Redis server ms instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s
      LatencyOtherProxy Average latency of other commands The average execution latency of commands (excluding write and read commands) between the proxy and the Redis server ms instanceid, pnodeid 5s, 60s, 300s, 3600s, 86400s

      Redis node monitoring

      Parameter Metric Name Description Unit Dimension Statistical Period
      CpuUtilNode CPU utilization The average CPU utilization % instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      ConnectionsNode Connections The number of connections from the proxy to the node - instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      ConnectionsUtilNode Connection utilization The utilization of node connections % instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      MemUsedNode Used memory The actually used memory capacity, including the capacity for data and cache MB instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      MemUtilNode Memory utilization The ratio of the actually used memory to the requested total memory % instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      KeysNode Total keys The total number of keys (level-1 keys) stored in the instance - instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      ExpiredNode Expired keys The number of keys expired in a time window, which is equal to the value of expired_keys output by the info command - instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      EvictedNode Evicted keys The number of keys evicted in a time window, which is equal to the value of evicted_keys output by the info command - instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      ReplDelayNode Replication delay The command delay between the replica node and the master node Byte instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CommandsNode Total requests The QPS, that is, the number of command executions per second Count/sec instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdReadNode Read requests The number of read command executions per second Count/sec instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdWriteNode Write requests The number of write command executions per second Count/sec instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdOtherNode Other requests The number of command (excluding write and read commands) executions per second Count/sec instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdSlowNode Slow queries The number of command executions with a latency greater than the configured slowlog-log-slower-than value - instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdHitsNode Read request hits The number of keys successfully requested by read commands, which is equal to the value of the keyspace_hits metric output by the info command - instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdMissNode Read request misses The number of keys unsuccessfully requested by read commands, which is equal to the value of the keyspace_misses metric output by the info command - instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s
      CmdHitsRatioNode Read request hit rate Key hits/(key hits + key misses). This metric reflects cache misses. % instanceid, rnodeid 5s, 60s, 300s, 3600s, 86400s

      Dimensions and Parameters

      Parameter Dimension Description Format
      Instances.N.Dimensions.0.Name instanceid Dimension name of the instance ID Enter a string-type dimension name: instanceid
      Instances.N.Dimensions.0.Value instanceid Specific instance ID Enter a specific Redis instance ID, such as tdsql-123456, which can be queried through the DescribeInstances API and can also be an instance string such as crs-ifmymj41.
      Instances.N.Dimensions.1.Name rnodeid Dimension name of the Redis node ID Enter a string-type dimension name: rnodeid
      Instances.N.Dimensions.1.Value rnodeid Specific Redis node ID Enter a specific Redis node ID, which can be queried through the DescribeInstanceNodeInfo API.
      Instances.N.Dimensions.1.Name pnodeid Dimension name of the proxy node ID Enter a string-type dimension name: pnodeid
      Instances.N.Dimensions.1.Value pnodeid Specific proxy node ID Enter a specific proxy node ID, which can be queried through the DescribeInstanceNodeInfo API.
      Instances.N.Dimensions.1.Name command Dimension name of the command word Enter a string-type dimension name: command
      Instances.N.Dimensions.1.Value command Specific command word Enter a specific command word, such as ping and get

      Input Parameters

      To query the monitoring data of a TencentDB for Redis instance, use the following input parameters:
      &Namespace=QCE/REDIS_MEM
      &Instances.N.Dimensions.0.Name=instanceid
      &Instances.N.Dimensions.0.Value=Instance ID

      To query the monitoring data of a TencentDB proxy node, use the following input parameters:
      &Namespace=QCE/REDIS_MEM
      &Instances.N.Dimensions.0.Name=instanceid
      &Instances.N.Dimensions.0.Value=Instance ID
      &Instances.N.Dimensions.1.Name=pnodeid
      &Instances.N.Dimensions.1.Value=Proxy node ID

      To query the monitoring data of a TencentDB for Redis node, use the following input parameters:
      &Namespace=QCE/REDIS_MEM
      &Instances.N.Dimensions.0.Name=instanceid
      &Instances.N.Dimensions.0.Value=Instance ID
      &Instances.N.Dimensions.1.Name=rnodeid
      &Instances.N.Dimensions.1.Value=Redis node ID

      To query the monitoring data of TencentDB for Redis latency metrics (command dimension), use the following input parameters:
      &Namespace=QCE/REDIS_MEM
      &Instances.N.Dimensions.0.Name=instanceid
      &Instances.N.Dimensions.0.Value=Instance ID
      &Instances.N.Dimensions.1.Name=command
      &Instances.N.Dimensions.1.Value=Specific command word

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