Exclusive Monitoring Metrics
Last updated:2025-04-29 22:35:26
The exclusive instance of TencentDB for CTSDB 3.0 performs monitoring and statistics across four dimensions: instances, compute nodes, data nodes, and databases, including more than 40 indicator items such as requests, latency, and resource utilization, providing completely transparent monitoring services.
Instance Monitoring
Instance monitoring refers to the monitoring and analysis of requests, response time, and resource consumption of the entire database instance. For specific metrics, see the table below.
Monitoring Grouping | Monitoring Indicator | Metric Meaning | Unit |
Request monitoring | Average Read Latency | The average latency of read request command executions. | ms |
| Average Write Latency | The average latency of write request command executions. | ms |
| Total Requests | The number of all requests command executions per second. | Count/s |
| Total Request Failure Rate | The percentage of all failed requests to the total requests. Failed execution includes requests that are rejected by the database and timeout requests. | % |
| Total Request Rejection Rate | The percentage of requests rejected by the database to the total requests. | % |
| Read Requests | The number of read request command executions per second. | Count/s |
| Read Request Failure Rate | The percentage of failed read request command executions to the read requests. Failed executions include requests that are rejected by the database and timeout requests. | % |
| Read Request Rejection Rate | The percentage of read request commands rejected by the database to the read requests. | % |
| Write Points | The number of data points written into the instance. | Count/s |
| Write Requests | The number of write request command executions per second. | Count/s |
| Write Request Failure Rate | The percentage of failed write request command executions. | % |
| Write Request Rejection Rate | The percentage of write request commands rejected by the database. | % |
Resource monitoring | Series Count | The number of time sequences stored in the database. | Count |
| Storage Utilization Of Object | Describes the percentage of storage usage and purchase specs. | % |
| Storage Used | Describes the actual usage of data storage. | GBytes |
| Average CPU Utilization of Compute Node | The compute node CPU utilization, taking the average of all nodes. | % |
| Max CPU Utilization of Compute Node | The compute node CPU utilization, taking the maximum value of all nodes. | % |
| Average Memory Utilization of Compute Node | The compute node memory utilization, taking the average of all nodes. | % |
| Max Memory Utilization of Compute Node | The compute node memory utilization, taking the maximum value of all nodes. | % |
| Average CPU Utilization of Data Node | The data node CPU utilization, taking the average of all nodes. | % |
| Max CPU Utilization of Data Node | The data node CPU utilization, taking the maximum value of all nodes. | % |
| Average Memory Utilization of Data Node | The data node memory utilization, taking the average of all nodes. | % |
| Max Memory Utilization of Data Node | The data node memory utilization, taking the maximum value of all nodes. | % |
| Inbound Traffic | The volume of data received by the database instance per second. | Bytes |
| Outbound Traffic | The volume of data sent by the database instance per second. | Bytes |
| Series Utilization | The ratio of the actual number of timelines used in the database to the total timeline capacity. | % |
Compute Node Monitoring
Compute node monitoring refers to the monitoring and statistics of CPU and memory resource consumption of compute nodes in a database cluster. For specific metrics, see the table below.
Monitoring Metrics | Metric Meaning | Unit |
CPU Utilization of Compute Node | The CPU utilization of compute nodes. | % |
Memory Utilization of Compute Node | The memory utilization of compute nodes. | % |
Inbound Traffic of Compute Node | The volume of data received by the compute node per minute. | Bytes |
Outbound Traffic of Compute Node | The volume of data sent by the compute node per minute. | Bytes |
Write Points of Compute Node | The number of data points written into the compute node. | Count/s |
Average Read Latency of Compute Node | The average latency of read request executions of compute nodes. | ms |
Average Write Latency of Compute Node | The average latency of write request executions of compute nodes. | ms |
Read Requests of Compute Node | The number of read request command executions per second on the compute node. | Count/s |
Read Request Failure Rate of Compute Node | The percentage of read request execution failures of compute nodes to the write requests, including execution failures such as those rejected by the database and timeout requests. | % |
Read Request Rejection Rate of Compute Node | The percentage of read request commands of compute nodes rejected by the database to the write requests. | % |
Total Requests of Compute Node | The number of all request command executions per second on the compute node. | Count/s |
Total Request Failure Rate of Compute Node | The percentage of all request execution failures of compute nodes to all requests, including execution failures such as those rejected by the database and timeout requests. | % |
Total Request Rejection Rate of Compute Node | The percentage of all request commands of compute nodes rejected by the database to the total requests. | % |
Write Requests of Compute Node | The number of write request command executions per second on the compute node. | Count/s |
Write Request Failure Rate of Compute Node | The percentage of write request execution failures of compute nodes to the read requests, including execution failures such as those rejected by the database and timeout requests. | % |
Write Request Rejection Rate of Compute Node | The percentage of write request commands of compute nodes rejected by the database to the read requests. | % |
Data Node
Monitoring Metrics | Metric Meaning | Unit |
CPU Utilization of Data Node | The CPU utilization of data nodes. | % |
Memory Utilization of Data Node | The memory utilization of data nodes. | % |
Database Monitoring
Database monitoring refers to the statistics of database task execution and disk usage.
Monitoring Metrics | Metric Meaning | Unit |
Count Of CQ Jobs | Describes the total number of CQ tasks. | Count |
Success Rate Of CQ Jobs | Describes the percentage of CQ tasks that are successfully executed on time. | % |
Storage Used Of Single Database | Describes the percentage of disk occupancy of a single database. | GBytes |
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