MoquetteBroker Monitoring

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

**Table 1** MoquetteBroker metrics
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
Exception (exception: MoquetteBroker call exception statistics)	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
MoquetteBroker version (version)	version	Version	Version	-	STRING	LAST
MoquetteBroker topic summary (total: MoquetteBroker topic summary)	msgSentCount	Message Sending Times	Total number of message sending times	-	INT	SUM
	bytesSent	Bytes Sent	Total number of bytes sent	-	INT	SUM
	msgReceivedCount	Message Receiving Times	Total number of message receiving times	-	INT	SUM
	bytesReceived	Bytes Received	Total number of bytes received	-	INT	SUM
MoquetteBroker topic-based monitoring (brokerTopic)	topic	Topic	Topic	-	ENUM	LAST
	subscribeCount	Subscriptions	Number of subscriptions	-	INT	SUM
	msgSentCount	Message Sending Times	Number of message sending times	-	INT	SUM
	bytesSent	Bytes Sent	Number of bytes sent	-	INT	SUM
	msgReceivedCount	Message Receiving Times	Number of message receiving times	-	INT	SUM
	bytesReceived	Bytes Received	Number of bytes received	-	INT	SUM