Help Center/ Application Performance Management/ Service Overview（2.0）/ Metric Overview/ Open Tracing/ Instance

Updated on 2025-11-19 GMT+08:00

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Instance

Instance is a collector to collect instance information. The information includes the categories, names, descriptions, units, data types, and default aggregation modes of metrics.

**Table 1** Instance metrics
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
Instance (info)	hostname	Host Name	Host name	-	STRING	LAST
	ip	IP Address	IP address of the instance	-	STRING	LAST
	processNumber	Processes	Number of processes	-	STRING	LAST
	language	Application Type	Application type	-	STRING	LAST
	startTime	Registered	Time when the instance is registered	ms	DATETIME	LAST
	jvmArguments	JVM Info	JVM information of the instance	-	STRING	LAST
	jarDependencies	Dependency	Dependency of the instance	-	STRING	LAST
	osName	OS	Operating system of the instance	-	STRING	LAST

Parent topic: Open Tracing

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