I started to take regular thread dumps, and wrote a little utility that
compares them, and I see that we have a lot of http connector threads that
remain in same state over multiple hours:

"http--0.0.0.0-8443-18" daemon prio tid=0x0000000002efb800 nid=0x10b2
runnable [0x00007fca4fcbd000]
java.lang.Thread.State: RUNNABLE
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:150)
at java.net.SocketInputStream.read(SocketInputStream.java:121)
at
org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java:731)
at
org.apache.coyote.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:368)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:838)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
at java.lang.Thread.run(Thread.java:722)

We have 105 threads in this state over multiple hours (even during normal
app operation).

Question: Could it be that we have connection leakage through keep-alive
connections? Is there are possibility to reduce them?
I understand that jboss have the same apache 11 connector, however all
extended configuration options are removed from the doc:
http://docs.jboss.org/jbossweb/7.0.x/config/http.html

Maybe any other points?

Thanks in advance
Leon

JBoss AS7, Java 1.7, ubuntu 10,

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