CoapClient Monitoring

This section describes the types, names, and meanings of CoapClient metrics collected by APM.

**Table 1** Call metrics
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
URL monitoring (detail: APM counts URL call statistics by URL, packet type, and request type.)	url	URL	Request URL	-	ENUM	LAST
	requestType	Packet Type	Packet type	-	ENUM	LAST
	concurrentMax	Max. Concurrency	Maximum concurrency of the method	-	INT	MAX
	errorCount	Errors	Number of times that the method fails to be called	-	INT	SUM
	invokeCount	Calls	Number of times that the method is called	-	INT	SUM
	maxTime	Max. RT	Maximum response time of the method in a collection period	-	INT	MAX
	runningCount	Ongoing Executions	Number of executions of the method at the time of collection	-	INT	SUM
	range1	0–10 ms	Number of requests with 0–10 ms response time	-	INT	SUM
	range2	10–100 ms	Number of requests with 10–100 ms response time	-	INT	SUM
	range3	100–500 ms	Number of requests with 100–500 ms response time	-	INT	SUM
	range4	500–1000 ms	Number of requests with 500–1000 ms response time	-	INT	SUM
	range5	1–10s	Number of requests with 1–10s response time	-	INT	SUM
	range6	> 10s	Number of requests with response time longer than 10s	-	INT	SUM
	totalTime	Total RT	Total response time of the method	-	INT	SUM
	method	Request Type	Request type	-	ENUM	LAST
	errorTraceId	Error Trace ID	ID of the trace that encounters an error in a collection period	-	STRING	LAST
	slowTraceId	Slow Trace ID	ID of the slowest trace in a collection period	-	STRING	LAST
	lastError	Error Message	Error message	-	STRING	LAST
Status code (statusInfo: APM counts URL call statistics based on the status code returned.)	statusInfo	Status Code	Status code	-	ENUM	LAST
	count	Calls	Number of times that the status code has occurred	-	INT	SUM
	url	Sample URL	Sample URL which returns the status code in a collection period	-	STRING	LAST
Cluster call (CON packets) (cluster_con: APM counts URL call statistics (CON packets) based on the cluster ID.)	clusterId	Cluster ID	Cluster ID of the caller	-	ENUM	LAST
	invokeCount	Calls	Number of times the cluster is called	-	INT	SUM
	totalTime	Total RT	Total response time for calling the cluster	-	INT	SUM
	errorCount	Errors	Number of times that the cluster fails to be called	-	INT	SUM
CoapClient version (version)	version	Version	Version	-	STRING	LAST