Did you look at the thread dump while it's hanging? I once found in one of my setups that InetAddress.getLocalHost() was hanging because of local DNS related issues. VisualVM is a great tool for debugging things like this.
Pavel On Wed, Sep 21, 2011 at 1:10 PM, Dean Hiller <[email protected]> wrote: > I am using jetty-distribution-7.4.5.v20110725 with jdk 1.6.0_26 > > I run 10 servers, start them all up and at least one sometimes two will > encounter a 5 minute pause. I see the request come in on ethereal and have > a filter that logs every request(first thing it does) and that request is > logged 5 minutes after I see it in wireshark. I cannot telnet into the > frozen server port 8080 BUT when another port is open like 8081, I can > telnet into 8081 during this weird pause. I am wondering if it is an > underlying lock in the JVM. There is no deadlocks according to jstack -m > nor jstack -l command and all threads look find....all of them are stuck on > read from socket for like 5 minutes exactly. > > I see there is a tcp timeout of 5 minutes in the tcp spec for something. I > see no 5 minute timeouts for jetty. Anyone know any valid JVM configuration > timeout values I could tweak and see if the pause period changes length at > all? > > thanks, > Dean > > > _______________________________________________ > jetty-users mailing list > [email protected] > https://dev.eclipse.org/mailman/listinfo/jetty-users > >
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