ApsaraDB for MongoDB:ApsaraDB for MongoDB replica set instances

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

• The Namespace is acs_mongodb.
• The Period defaults to 60 seconds and supports any integer multiple of 60.

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