PahoSubscriber Monitoring

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

**Table 1** PahoSubscriber metrics
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
Monitoring of PUBLISH packets received by PahoSubscriber (message)	uri	serviceUri	URI of the MQTT server connected to PahoSubscriber	-	ENUM	LAST
	msgType	Packet Type	Type of the packet that is sent	-	ENUM	LAST
	concurrentMax	Max. Concurrency	Maximum concurrency	-	INT	MAX
	errorCount	Errors	Number of errors	-	INT	SUM
	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
	invokeCount	Calls	Number of calls	-	INT	SUM
	lastError	Error Message	Error message	-	STRING	LAST
	maxTime	Max. RT	Maximum response time	-	INT	MAX
	totalTime	Total RT	Total response time	-	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
Node-based monitoring of PUBLISH packets received by PahoSubscriber (uriMessage)	uri	serviceUri	URI of the MQTT server connected to PahoSubscriber	-	ENUM	LAST
	errorCount	Errors	Errors	-	INT	SUM
	invokeCount	Number of calls	Calls	-	INT	SUM
	totalTime	Total RT	Total response time	-	INT	SUM
Exception (exception: exception statistics of PahoSubscriber calls)	exceptionType	Exception Type	Exception type	-	ENUM	LAST
	causeType	Exception Class	Exception class	-	ENUM	LAST
	count	Count	Number of times the exception has occurred	-	INT	SUM
	message	Exception Message	Message returned when the exception has occurred	-	STRING	LAST
	stackTrace	Exception Stack	Exception stack information	-	CLOB	LAST
PahoSubscriber topic-based monitoring (clientReceive)	clientId	clientId	clientId	-	ENUM	LAST
	topic	Topic	Topic	-	ENUM	LAST
	msgReceivedCount	Message Receiving Times	Number of message receiving times	-	INT	SUM
	bytesReceived	Bytes Received	Number of bytes received	-	INT	SUM
PahoSubscriber version (version)	version	Version	Version	-	STRING	LAST
PahoSubscriber topic summary (total)	msgReceivedCount	Message Receiving Times	Total number of message receiving times	-	INT	SUM
PahoSubscriber topic summary (total)	bytesReceived	Bytes Received	Total number of bytes received	-	INT	SUM