Li, Qiao 01222743d0 APM2.0 UMN 20230825 version

Reviewed-by: Mützel, Andrea <andrea.muetzel@t-systems.com>
Co-authored-by: Li, Qiao <qiaoli@huawei.com>
Co-committed-by: Li, Qiao <qiaoli@huawei.com>

2024-06-18 07:09:10 +00:00

Netty Memory

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

**Table 1** Netty memory metrics
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
Memory (memory: memory metrics)	directMemoryUsage	directMemoryUsage	Used direct memory	-	INT	AVG
Memory (memory: memory metrics)	maxDirectMemory	maxDirectMemory	Maximum direct memory	-	INT	MAX
Exception (exception)	causeType	causeType	Class	-	ENUM	LAST
	exceptionType	exceptionType	Exception type	-	ENUM	LAST
	count	count	Count	-	INT	SUM
	message	message	Exception message	-	STRING	LAST
	stackTrace	stackTrace	Exception stack	-	CLOB	LAST

Parent topic: Basic Monitoring