This topic describes the metrics and their corresponding indicators of ApsaraDB for MongoDB replica set instances.

When you call an API operation provided by CloudMonitor, set the Namespace and Period parameters.

  • Set the Namespace parameter to acs_mongodb.
  • Set the Period parameter to an integral multiple of 60. Default value: 60. Unit: seconds.

The following table describes the valid values of the MetricName and Dimensions parameters.

Metric in alert rules Indicator Unit MetricName Dimensions Statistics
CPU utilization cpu_usage % CPUUtilization userId, instanceId, and role Maximum, Minimum, and Average
Number of used connections current_conn Count ConnectionAmount userId, instanceId, and role Maximum, Minimum, and Average
Connection usage conn_usage % ConnectionUtilization userId, instanceId, and role Maximum, Minimum, and Average
Disk size occupied by data data_size Byte DataDiskAmount userId, instanceId, and role Maximum, Minimum, and Average
Disk usage disk_usage % DiskUtilization userId, instanceId, and role Maximum, Minimum, and Average
IOPS usage iops_usage % IOPSUtilization userId, instanceId, and role Maximum, Minimum, and Average
Disk size occupied by instances ins_size Byte InstanceDiskAmount userId, instanceId, and role Maximum, Minimum, and Average
Internal inbound traffic bytes_in Byte IntranetIn userId, instanceId, and role Maximum, Minimum, and Average
Internal outbound traffic bytes_out Byte IntranetOut userId, instanceId, and role Maximum, Minimum, and Average
Disk size occupied by logs log_size Byte LogDiskAmount userId, instanceId, and role Maximum, Minimum, and Average
Memory usage mem_usage % MemoryUtilization userId, instanceId, and role Maximum, Minimum, and Average
Number of requests num_requests Count NumberRequests userId, instanceId, and role Maximum, Minimum, and Average
Number of command operations command Count/s OpCommand userId, instanceId, and role Maximum, Minimum, and Average
Number of delete operations delete Count/s OpDelete userId, instanceId, and role Maximum, Minimum, and Average
Number of getMore operations getmore Count/s OpGetmore userId, instanceId, and role Maximum, Minimum, and Average
Number of insert operations insert Count/s OpInsert userId, instanceId, and role Maximum, Minimum, and Average
Number of query operations query Count/s OpQuery userId, instanceId, and role Maximum, Minimum, and Average
Number of update operations update Count/s OpUpdate userId, instanceId, and role Maximum, Minimum, and Average
Queries per second (QPS) insert+delete+update+query+getmore+command Count/s QPS userId, instanceId, and role Maximum, Minimum, and Average
Replication lag repl_lag Seconds ReplicationLag userId, instanceId, and role Maximum, Minimum, and Average