This document lists the CloudMonitor metrics available for ApsaraDB for MongoDB standalone instances. Use these metrics to set up alert rules or query monitoring data through the CloudMonitor API.
Before you call the API
Set the following parameters in every CloudMonitor API call:
| Parameter | Value |
|---|
Namespace | acs_mongodb |
Period | An integer multiple of 60 (seconds). Default: 60. |
All metrics for standalone instances require both userId and instanceId as Dimensions.
Metrics
Resource utilization
| Metric in alert rules | Indicator | Unit | MetricName | Statistics |
|---|
| CPU utilization | cpu_usage | % | SingleNodeCPUUtilization | Average, Maximum, and Minimum |
| Memory usage | mem_usage | % | SingleNodeMemoryUtilization | Average, Maximum, and Minimum |
| Disk usage | disk_usage | % | SingleNodeDiskUtilization | Average, Maximum, and Minimum |
| Disk size occupied by data | data_size | Bytes | SingleNodeDateDiskAmount | Average, Maximum, and Minimum |
Connections
| Metric in alert rules | Indicator | Unit | MetricName | Statistics |
|---|
| Number of used connections | current_conn | Count | SingleNodeConnectionAmount | Average, Maximum, and Minimum |
| Connection usage | conn_usage | % | SingleNodeConnectionUtilization | Average, Maximum, and Minimum |
Network
| Metric in alert rules | Indicator | Unit | MetricName | Statistics |
|---|
| Inbound network traffic | bytes_in | Bytes | SingleNodeIntranetIn | Average, Maximum, and Minimum |
| Outbound network traffic | bytes_out | Bytes | SingleNodeIntranetOut | Average, Maximum, and Minimum |
Operations
| Metric in alert rules | Indicator | Unit | MetricName | Statistics |
|---|
| Number of requests | num_requests | Count | SingleNodeNumberRequests | Average, Maximum, and Minimum |
| Queries per second (QPS) | insert+delete+update+query+getmore+command | Count/s | SingleNodeQPS | Average, Maximum, and Minimum |
| Number of command operations | command | Count/s | SingleNodeOpCommand | Average, Maximum, and Minimum |
| Number of deletion operations | delete | Count/s | SingleNodeOpDelete | Average, Maximum, and Minimum |
| Number of getMore operations | getmore | Count/s | SingleNodeOpGetmore | Average, Maximum, and Minimum |
| Number of insert operations | insert | Count/s | SingleNodeOpInsert | Average, Maximum, and Minimum |
| Number of query operations | query | Count/s | SingleNodeOpQuery | Average, Maximum, and Minimum |
| Number of update operations | update | Count/s | SingleNodeOpUpdate | Average, Maximum, and Minimum |