Exception

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

**Table 1** Exception collection parameters
Parameter	Data Type	Application Type	Default Value	Supported Start Agent Version	Supported End Agent Version	Description
Determine Trace Exception upon Log Error Detection	radio	JAVA	true	2.0.0	-	Whether to mark a trace as abnormal after a log error is collected.
Print Trace ID or Not	radio	JAVA	false	2.3.19	-	Whether to add trace IDs during log printing.

**Table 2** Exception metric description
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
Exception logs (exception: statistics about all exception logs)	className	Exception Class	Exception class	-	ENUM	LAST
	exceptionType	Exception Type	Exception type	-	ENUM	LAST
	logType	Log Type	Exception log type	-	ENUM	LAST
	count	Count	Number of times that an exception has occurred	-	INT	SUM
	message	Exception Message	Message returned when the exception has occurred	-	STRING	LAST
	stackTrace	Exception Stack	Exception stack	-	CLOB	LAST
	errorTraceId	Error Trace ID	ID of the trace that encounters an error in a collection period	-	STRING	LAST
Log version (logVersion: package version of the log component)	logType	Log Type	Log type	-	ENUM	LAST
	version	Log Version	Log version	-	STRING	LAST