what operative system? -- jesse mcconnell [email protected]
On Wed, May 2, 2012 at 2:59 PM, Mennonite _ <[email protected]> wrote: > Jetty version: 7.6.2 > Java version: 1.6.0 U30 > > Every once in a while, Jetty all but completely stops responding to > HTTP/HTTPS connections. I got a Java thread dump, and tracing through the > locks, it looks like there's a single > org.eclipse.jetty.io.nio.ChannelEndPoint.close() which, via locks, seems to > block all other close()s, bringing everything to a grinding halt. > > There are a ton of threads, all with very similar/identical stack traces, > waiting for one lock: > "qtp683347213-21440" prio=10 tid=0x00002aaab57ac000 nid=0x3172 waiting for > monitor entry [0x0000000042d8f000] > java.lang.Thread.State: BLOCKED (on object monitor) > at java.nio.channels.spi.AbstractSelector.cancel(Unknown Source) > - waiting to lock <0x00000006e659db48> (a java.util.HashSet) > at java.nio.channels.spi.AbstractSelectionKey.cancel(Unknown Source) > - locked <0x00000007398808d0> (a sun.nio.ch.SelectionKeyImpl) > at > org.eclipse.jetty.io.nio.SelectChannelEndPoint.close(SelectChannelEndPoint.java:691) > at > org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.close(SslConnection.java:652) > at > org.eclipse.jetty.server.AsyncHttpConnection.onInputShutdown(AsyncHttpConnection.java:194) > at > org.eclipse.jetty.io.nio.SslConnection.handle(SslConnection.java:210) > at > org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609) > at > org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45) > at > org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599) > at > org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534) > at java.lang.Thread.run(Unknown Source) > > Which is held by this thread, which is waiting for another lock: > "qtp683347213-90 Selector7" prio=10 tid=0x000000004f5c3000 nid=0x7773 > waiting for monitor entry [0x0000000041bdb000] > java.lang.Thread.State: BLOCKED (on object monitor) > at sun.nio.ch.SocketChannelImpl.kill(Unknown Source) > - waiting to lock <0x00000007398806a0> (a java.lang.Object) > at sun.nio.ch.EPollSelectorImpl.implDereg(Unknown Source) > at sun.nio.ch.SelectorImpl.processDeregisterQueue(Unknown Source) > - locked <0x00000006e659db48> (a java.util.HashSet) > at sun.nio.ch.EPollSelectorImpl.doSelect(Unknown Source) > at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source) > - locked <0x00000006e659e300> (a sun.nio.ch.Util$2) > - locked <0x00000006e659e2f0> (a > java.util.Collections$UnmodifiableSet) > - locked <0x00000006e659daf0> (a sun.nio.ch.EPollSelectorImpl) > at sun.nio.ch.SelectorImpl.selectNow(Unknown Source) > at > org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:531) > at > org.eclipse.jetty.io.nio.SelectorManager$1.run(SelectorManager.java:285) > at > org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599) > at > org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534) > at java.lang.Thread.run(Unknown Source) > > Which is held by this thread: > "qtp683347213-19755" prio=10 tid=0x000000005005b800 nid=0x7f5e runnable > [0x00000000440a3000] > java.lang.Thread.State: RUNNABLE > at sun.nio.ch.FileDispatcher.preClose0(Native Method) > at sun.nio.ch.SocketDispatcher.preClose(Unknown Source) > at sun.nio.ch.SocketChannelImpl.implCloseSelectableChannel(Unknown > Source) > - locked <0x00000007398806a0> (a java.lang.Object) > at > java.nio.channels.spi.AbstractSelectableChannel.implCloseChannel(Unknown > Source) > at java.nio.channels.spi.AbstractInterruptibleChannel.close(Unknown > Source) > - locked <0x000000073987aea0> (a java.lang.Object) > at > org.eclipse.jetty.io.nio.ChannelEndPoint.close(ChannelEndPoint.java:205) > at > org.eclipse.jetty.io.nio.SelectChannelEndPoint.close(SelectChannelEndPoint.java:700) > at > org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.close(SslConnection.java:652) > at > org.eclipse.jetty.server.AsyncHttpConnection.onInputShutdown(AsyncHttpConnection.java:194) > at > org.eclipse.jetty.io.nio.SslConnection.handle(SslConnection.java:210) > at > org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:609) > at > org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45) > at > org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599) > at > org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534) > at java.lang.Thread.run(Unknown Source) > > > This happens very sporadically, and so I can't reproduce it on demand. I'd > expect that there are certain environmental factors that cause this, but I > don't know what those are. > > Any thoughts about this? > > _______________________________________________ > jetty-users mailing list > [email protected] > https://dev.eclipse.org/mailman/listinfo/jetty-users > _______________________________________________ jetty-users mailing list [email protected] https://dev.eclipse.org/mailman/listinfo/jetty-users
