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

Tomcat Monitoring

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

**Table 1** Tomcat metrics
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
Tomcat information (tomcatInfo: Tomcat package version statistics)	tomcatVersion	tomcatVersion	Tomcat version	-	STRING	LAST
Tomcat port monitoring (tomcat: APM counts statistics of Tomcat threads and connections by Tomcat port.)	name	name	Port name	-	ENUM	LAST
	currentThreadCount	currentThreadCount	Number of current threads on the port	-	INT	AVG
	currentThreadsBusy	currentThreadsBusy	Number of busy threads on the port at the time of collection	-	INT	AVG
	currentThreadsBusyMax	currentThreadsBusyMax	Maximum number of busy threads on the port in a collection period	-	INT	MAX
	maxThreads	maxThreads	Maximum number of threads on the port	-	INT	MAX
	maxConnections	maxConnections	Maximum number of connections on the port	-	INT	MAX
	connectionCount	connectionCount	Number of current connections of the port at the time of collection	-	INT	MAX
	connectionCountMax	connectionCountMax	Maximum number of connections on the port in a collection period	-	INT	MAX

Parent topic: Metric Overview