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DocumentationTencent Cloud Observability PlatformCloud Product MonitoringTencent Cloud Service Metrics TencentDBTencentDB for Redis Monitoring MetricsMonitoring Metrics (Memory Edition)
Monitoring Metrics (Memory Edition)
Last updated: 2024-01-27 17:44:47
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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