CODEWITHSUNDEEP
linuxmultithreadingtomcatjvm
Satish
Satish

Reputation: 17487

Tomcat what is Thread Total Started Count

We are monitoring Tomcat using SNMP tool and its showing me.

Thread Total Started Count = 500 (It's changing frequently)

I have hunt down OID and i found its "jvmThreadTotalStartedCount" http://support.ipmonitor.com/mibs/JVM-MANAGEMENT-MIB/item.aspx?id=jvmThreadTotalStartedCount

It is saying: The total number of threads created and started since the Java Virtual Machine started.

My question is what this means? Could someone explain me in simple/basic language.

Upvotes: 1

Views: 2151

Answers (1)

Frédéric Hamidi
Frédéric Hamidi

Reputation: 263177

A thread is a flow of execution within a process. There are processes that only have a single flow of execution (single-threaded) and others, like Tomcat, which partition their behavior into several flows of execution, in parallel (multi-threaded).

Tomcat, as a web server, typically allocates one thread to handle each request it receives, up to a limit (might be 500 in your case), after which following requests are queued, waiting for a thread to become free to handle them. This is known as thread pooling.

So, to answer your first question, Thread Total Started Count is the total count of all the different flows of execution that have been created by this instance of Tomcat since it started running.

Upvotes: 3

Related Questions