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    Monitoring Metrics (Memory Edition)

    Last updated: 2021-03-24 10:42:52
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      Namespace

      Namespace=QCE/REDIS

      Monitoring Metrics

      Standard edition

      Parameter Metric Name Unit Description Dimension
      CpuUsMin CPU utilization % Average CPU utilization instanceid
      StorageMin Memory usage MB Actually used memory capacity, including the capacity for data and cache instanceid
      StorageUsMin Memory utilization % Ratio of the actually used memory to the requested total memory instanceid
      KeysMin Total number of keys Count Total number of keys (level-1 keys) in instance storage instanceid
      ExpiredKeysMin Expired keys Count Number of keys expired in a time window, which corresponds to the value of expired_keys outputted by the info command instanceid
      EvictedKeysMin Evicted keys Count Number of keys evicted in a time window, which corresponds to the value of evicted_keys outputted by the info command instanceid
      ConnectionsMin Connections Count Number of TCP connections to an instance instanceid
      ConnectionsUsMin Connection utilization % Ratio of the actual number of TCP connections to the maximum number of connections instanceid
      InFlowMin Inbound traffic Mb/s Private inbound traffic instanceid
      InFlowUsMin Inbound traffic utilization % Ratio of the actually used private inbound traffic to the maximum traffic instanceid
      OutFlowMin Outbound traffic Mb/s Private outbound traffic instanceid
      OutFlowUsMin Outbound traffic utilization % Ratio of the actually used private outbound traffic to the maximum traffic instanceid
      LatencyMin Average execution latency ms Average execution latency between the proxy and the Redis server instanceid
      LatencyGetMin Average execution latency of the read command ms Average execution latency of the read command between the proxy and the Redis server instanceid
      LatencySetMin Average execution latency of the write command ms Average execution latency of the write command between the proxy and the Redis server instanceid
      LatencyOtherMin Average execution latency of other commands ms Average execution latency of commands other than read and write between the proxy and the Redis server instanceid
      QpsMin Total requests Times/sec QPS, that is, the number of command executions instanceid
      StatGetMin Read requests Times/min Number of read command executions instanceid
      StatSetMin Write requests Times/min Number of write command executions instanceid
      StatOtherMin Other requests Times/sec Number of command executions other than reads and writes instanceid
      BigValueMin Big-value requests Times/sec Number of command executions for which the request size exceeds 32 KB instanceid
      SlowQueryMin Slow queries Count Number of slow queries instanceid
      StatSuccessMin Read request hits Count Number of existing read request keys, which corresponds to the value of the keyspace_hits metric outputted by the info command instanceid
      StatMissedMin Read request misses Count Number of nonexistent read request keys, which corresponds to the value of the keyspace_misses metric outputted by the info command instanceid
      CmdErrMin Execution errors Count Number of command execution errors, such as when a command does not exist or a parameter is incorrect instanceid
      CacheHitRatioMin Read request hit rate % Key hits/(key hits + key misses). This metric reflects the severity of cache misses instanceid

      Overview of cluster edition

      Parameter Metric Name Unit Description Dimension
      CpuUsMin Average CPU utilization % Average CPU utilization instanceid
      CpuMaxUsMin Maximum shard CPU utilization % Highest CPU utilization value of all shards in a cluster instanceid
      StorageMin Memory usage MB Actually used memory capacity, including the capacity for data and cache instanceid
      StorageUsMin Memory utilization % Ratio of the actually used memory to the requested total memory instanceid
      StorageMaxUsMin Maximum shard memory utilization % Highest memory utilization value of all shards in a cluster instanceid
      KeysMin Total number of keys Count Total number of keys (level-1 keys) in instance storage instanceid
      ExpiredKeysMin Expired keys Count Number of keys expired in a time window, which corresponds to the value of expired_keys outputted by the info command instanceid
      EvictedKeysMin Evicted keys Count Number of keys evicted in a time window, which corresponds to the value of evicted_keys outputted by the info command instanceid
      ConnectionsMin Connections Count Number of TCP connections to an instance instanceid
      ConnectionsUsMin Connection utilization % Ratio of the actual number of TCP connections to the maximum number of connections instanceid
      InFlowMin Inbound traffic Mb/s Private inbound traffic instanceid
      InFlowUsMin Inbound traffic utilization % Ratio of the actually used private inbound traffic to the maximum traffic instanceid
      OutFlowMin Outbound traffic Mb/s Private outbound traffic instanceid
      OutFlowUsMin Outbound traffic utilization % Ratio of the actually used private outbound traffic to the maximum traffic instanceid
      LatencyMin Average execution latency ms Average execution latency between the proxy and the Redis server instanceid
      LatencyGetMin Average execution latency of the read command ms Average execution latency of the read command between the proxy and the Redis server instanceid
      LatencySetMin Average execution latency of the write command ms Average execution latency of the write command between the proxy and the Redis server instanceid
      LatencyOtherMin Average execution latency of other commands ms Average execution latency of commands other than read and write between the proxy and the Redis server instanceid
      QpsMin Total requests Times/sec QPS, that is, the number of command executions instanceid
      StatGetMin Read requests Times/sec Number of read command executions instanceid
      StatSetMin Write requests Times/sec Number of write command executions instanceid
      StatOtherMin Other requests Times/sec Number of command executions other than reads and writes instanceid
      BigValueMin Big-value requests Times/sec Number of command executions for which the request size exceeds 32 KB instanceid
      SlowQueryMin Slow queries Count Number of command executions with a latency greater than the slowlog_log_slower_than configuration instanceid
      StatSuccessMin Read request hits Count Number of existing read request keys, which corresponds to the value of the keyspace_hits metric outputted by the info command instanceid
      StatMissedMin Read request misses Count Number of nonexistent read request keys, which corresponds to the value of the keyspace_misses metric outputted by the info command instanceid
      CmdErrMin Execution errors Count Number of command execution errors, such as when a command does not exist or a parameter is incorrect instanceid
      CacheHitRatioMin Read request hit rate % Key hits/(key hits + key misses). This metric reflects the severity of cache misses instanceid

      Cluster sharding

      Parameter Metric Name Unit Description Dimension
      CpuUsNodeMin CPU utilization % Average CPU utilization instanceid and clusterid
      StorageNodeMin Memory usage MB Actually used memory capacity, including the capacity for data and cache instanceid and clusterid
      StorageUsNodeMin Memory utilization % Ratio of the actually used memory to the requested total memory instanceid and clusterid
      KeysNodeMin Total number of keys Count Total number of keys (level-1 keys) in instance storage instanceid and clusterid
      ExpiredKeysNodeMin Expired keys Count Number of keys expired in a time window, which corresponds to the value of expired_keys outputted by the info command instanceid and clusterid
      EvictedKeysNodeMin Evicted keys Count Number of keys evicted in a time window, which corresponds to the value of evicted_keys outputted by the info command instanceid and clusterid
      QpsNodeMin Total requests Times/sec QPS, that is, the number of command executions instanceid and clusterid
      StatGetNodeMin Read requests Times/sec Number of read command executions instanceid and clusterid
      StatSetNodeMin Write requests Times/sec Number of write command executions instanceid and clusterid
      StatOtherNodeMin Other requests Times/sec Number of command executions other than reads and writes instanceid and clusterid
      SlowQueryNodeMin Slow queries Count Number of command executions with a latency greater than the slowlog_log_slower_than configuration instanceid and clusterid
      StatSuccessNodeMin Read request hits Count Number of existing read request keys, which corresponds to the value of the keyspace_hits metric outputted by the info command instanceid and clusterid
      StatMissedNodeMin Read request misses Count Number of nonexistent read request keys, which corresponds to the value of the keyspace_misses metric outputted by the info command instanceid and clusterid
      CmdErrNodeMin Execution errors Count Number of command execution errors, such as when a command does not exist or a parameter is incorrect instanceid and clusterid
      CacheHitRatioNodeMin Read request hit rate % Key hits/(key hits + key misses). This metric reflects the severity of cache misses. If the number of access requests is 0, the value of this metric will be null instanceid and clusterid

      Note：

      The statistical granularity (period) may vary by metric. The DescribeBaseMetrics API can be used to get the period supported by each API.

      Overview of Parameters in Each Dimension

      Parameter Name Dimension Name Dimension Description Format
      Instances.N.Dimensions.0.Name instanceid Dimension name of the instance ID Enter a string-type dimension name, such as instanceid
      Instances.N.Dimensions.0.Value instanceid A specific instance ID Enter a specific Redis instance ID, such as tdsql-123456. The specific Redis instance ID can also be an instance string, such as crs-ifmymj41. It can be queried through the DescribeRedis API
      Instances.N.Dimensions.1.Name clusterid Dimension name of the shard ID Enter a string-type dimension name, such as clusterid.
    • To pull overall information, do not pass in this parameter.
    • To pull shard information, the input parameter must be clusterid
      		•
      Instances.N.Dimensions.1.Value clusterid A specific shard ID Enter a specific shard ID such as tdsql-123456, which can be obtained by running commands such as cluster nodes

      Input Parameters

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

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