Monitoring Metrics (Memory Edition, 5-Second)

Last updated: 2021-01-28 15:29:47

    Namespace

    Namespace=QCE/REDIS_MEM

    Monitoring Metrics

    Instance summary

    Metric Description Unit Dimension
    MemUsed Memory capacity actually used, including data and cache MB instanceid
    CpuUtil Average CPU utilization % instanceid
    MemUtil Ratio of the memory actually used to the total memory requested % instanceid
    Keys Total number of keys stored in the instance (first-level keys) - instanceid
    Expired Number of keys that expired in the time window, which corresponds to the expired_keys output by the info command - instanceid
    Evicted Number of keys evicted in the time window, which corresponds to the evicted_keys output by the info command - instanceid
    Connections Number of TCP connections to the instance - instanceid
    ConnectionsUtil Ratio of the number of actual TCP connections to the maximum number of connections % instanceid
    InFlow Private network inbound traffic MB/s instanceid
    InBandwidthUtil Ratio of the actually used private network inbound traffic to the maximum traffic % instanceid
    InFlowLimit Number of times that throttling is triggered by the inbound traffic - instanceid
    OutFlow Private network outbound traffic MB/s instanceid
    OutBandwidthUtil Ratio of the actually used private network outbound traffic to the maximum traffic % instanceid
    OutFlowLimit Number of times that throttling is triggered by the outbound traffic - instanceid
    LatencyMax Maximum execution latency from proxy to Redis server ms instanceid
    LatencyAvg Average execution latency from proxy to Redis server ms instanceid
    LatencyRead Average execution latency of read commands from proxy to Redis server ms instanceid
    LatencyWrite Average execution latency of write commands from proxy to Redis server ms instanceid
    LatencyOther Average execution latency of commands other than read and write commands from proxy to Redis server ms instanceid
    Commands QPS (command executions) Executions/sec instanceid
    CmdRead Number of read command executions Executions/sec instanceid
    CmdWrite Number of write command executions Executions/sec instanceid
    CmdOther Number of executions of commands other than read and write commands Executions/sec instanceid
    CmdBigValue Number of executions for which the request size exceeds 32 KB Executions/sec instanceid
    CmdKeyCount Number of keys accessed by commands Keys/sec instanceid
    CmdMget Number of Mget command executions Executions/sec instanceid
    CmdSlow Number of commands whose execution latency is greater than the configured slowlog-log-slower-than value - instanceid
    CmdHits Number of existent read request keys, which corresponds to the keyspace_hits metric output by the info command - instanceid
    CmdMiss Number of non-existent read request keys, which corresponds to the keyspace_misses metric output by the info command - instanceid
    CmdErr Number of command execution errors, such as when a command does not exist or a parameter is incorrect - instanceid
    CmdHitsRatio Key hits/(key hits + key misses). This metric can reflect the situation of cache miss % instanceid
    CpuMaxUtil Maximum CPU utilization of nodes (shards or replicas) in the instance % instanceid
    MemMaxUtil Maximum memory utilization of nodes (shards or replicas) in the instance % instanceid

    Redis node

    Metric Description Unit Dimension
    MemUsedNode Memory capacity actually used, including data and cache MB instanceid, rnodeid
    ConnectionsNode Number of connections from proxy to node - instanceid, rnodeid
    ConnectionsUtilNode Node connection utilization % instanceid, rnodeid
    CpuUtilNode Average CPU utilization % instanceid, rnodeid
    MemUtilNode Ratio of the memory actually used to the total memory requested % instanceid, rnodeid
    KeysNode Total number of keys stored in the instance (first-level keys) - instanceid, rnodeid
    ExpiredNode Number of keys that expired in the time window, which corresponds to the expired_keys output by the info command - instanceid, rnodeid
    EvictedNode Number of keys evicted in the time window, which corresponds to the evicted_keys output by the info command - instanceid, rnodeid
    ReplDelayNode Command lag from replica node to primary node B instanceid, rnodeid
    CommandsNode QPS (command executions) Executions/sec instanceid, rnodeid
    CmdReadNode Number of read command executions Executions/sec instanceid, rnodeid
    CmdWriteNode Number of write command executions Executions/sec instanceid, rnodeid
    CmdOtherNode Number of executions of commands other than read and write commands Executions/sec instanceid, rnodeid
    CmdSlowNode Number of commands whose execution latency is greater than the configured slowlog-log-slower-than value - instanceid, rnodeid
    CmdHitsNode Number of existent read request keys, which corresponds to the keyspace_hits metric output by the info command - instanceid, rnodeid
    CmdMissNode Number of non-existent read request keys, which corresponds to the keyspace_misses metric output by the info command - instanceid, rnodeid
    CmdHitsRatioNode Key hits/(key hits + key misses). This metric can reflect the situation of cache miss % instanceid, rnodeid

    Proxy node

    Metric Description Unit Dimension
    CpuUtilProxy Proxy CPU utilization % instanceid, pnodeid
    CommandsProxy Number of commands executed by proxy Commands/sec instanceid, pnodeid
    CmdKeyCountProxy Number of keys accessed by commands Keys/sec instanceid, pnodeid
    CmdMgetProxy Number of Mget command executions Executions/sec instanceid, pnodeid
    CmdErrProxy Number of proxy command execution errors, such as when a command does not exist or a parameter is incorrect Errors/sec instanceid, pnodeid
    CmdBigValueProxy Number of executions for which the request size exceeds 32 KB Executions/sec instanceid, pnodeid
    ConnectionsProxy Number of TCP connections to the instance - instanceid, pnodeid
    InFlowProxy Private network inbound traffic MB/s instanceid, pnodeid
    OutFlowProxy Private network outbound traffic MB/s instanceid, pnodeid
    ConnectionsUtilProxy Connection utilization % instanceid, pnodeid
    InBandwidthUtilProxy Ratio of the actually used private network inbound traffic to the maximum traffic % instanceid, pnodeid
    OutBandwidthUtilProxy Ratio of the actually used private network outbound traffic to the maximum traffic % instanceid, pnodeid
    InFlowLimitProxy Number of times that throttling is triggered by the inbound traffic - instanceid, pnodeid
    OutFlowLimitProxy Number of times that throttling is triggered by the outbound traffic - instanceid, pnodeid
    LatencyAvgProxy Average execution latency from proxy to Redis server ms instanceid, pnodeid
    LatencyMaxProxy Maximum execution latency from proxy to Redis server ms instanceid, pnodeid
    LatencyReadProxy Average execution latency of read commands from proxy to Redis server ms instanceid, pnodeid
    LatencyWriteProxy Average execution latency of write commands from proxy to Redis server ms instanceid, pnodeid
    LatencyOtherProxy Average execution latency of commands other than read and write commands from proxy to Redis server ms instanceid, pnodeid

    Overview of Parameters in Each Dimension

    Parameter Dimension Dimension Description Format
    Instances.N.Dimensions.0.Name instanceid Instance ID dimension name 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 or instance SN such as crs-ifmymj41, which can be queried by calling the DescribeInstances API
    Instances.N.Dimensions.1.Name rnodeid Redis node ID dimension name 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 obtained by calling the DescribeInstanceNodeInfo API
    Instances.N.Dimensions.1.Name pnodeid Proxy node ID dimension name 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 obtained by calling the DescribeInstanceNodeInfo API

    Input Parameter Description

    To query the monitoring data of a TencentDB for Redis Memory Edition 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 Redis node of a TencentDB for Redis Memory Edition instance, 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 a proxy node of a TencentDB for Redis Memory Edition instance, 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

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