Hi,
In our environment we use Apache 2.2 (3 Servers load balanced with physical Loadbalancer) with JBOSS 7.1.1 (Three server standalone cluster) for hosting our Application.
Jboss is load Balance via Mod_cluster, the application works fine , below is my mod_cluster configuration
<subsystem xmlns="urn:jboss:domain:modcluster:1.0">
<mod-cluster-config advertise-socket="modcluster" proxy-list="IP_ADD1:80,IP_ADD2:80,IP_ADD3:80">
<dynamic-load-provider>
<load-metric type="busyness"/>
</dynamic-load-provider>
</mod-cluster-config>
</subsystem>
but what we observe is the live threads keeps on increasing every day. I Monitor Jboss using couple of tools one of the is jvisualVM, when I observe the threads and hundreds of these threads are AJP threads on port 8009. Below is a example the threads are in RUNNABLE, WAITING or CLOSED_WAITING state
ajp--IP_ADDRESS-8009-828" - Thread t@1698
java.lang.Thread.State: WAITING
at java.lang.Object.wait(Native Method)
- waiting on <5fccfab8> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
at java.lang.Object.wait(Object.java:503)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:885)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:911)
at java.lang.Thread.run(Thread.java:722)
The threads keep on increasing (200 threads every day).
I wanted to know whether this is normal behaviour ? if not then how to fix this ?
I am not a java developer and help would be most appreciated
Regards
