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::::{warning} This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features. ::::

Threading Metricset retrieves the JMX key Catalina:name=*,type=ThreadPool and java.lang:type=Threading using Jolokia. It exposes the following metrics:

• tomcat.threading.busy: Current busy threads from the ThreadPool
• tomcat.threading.max: Max threads from the ThreadPool
• tomcat.threading.current: Current number of threads, taken from the ThreadPool
• tomcat.threading.keep_alive.total: Total keep alive on the ThreadPool
• tomcat.threading.keep_alive.timeout.ms: Keep alive timeout on the ThreadPool
• tomcat.threading.started.total: Current started threads at JVM level (from java.lang:type=Threading)
• tomcat.threading.user.time.ms: User time in milliseconds (from java.lang:type=Threading)
• tomcat.threading.cpu.time.ms: CPU time in milliseconds (from java.lang:type=Threading)
• tomcat.threading.total: Total threads at the JVM level (from java.lang:type=Threading)
• tomcat.threading.peak: Peak number of threads at JVM level (from java.lang:type=Threading)