It appears that your pages have not been properly detached from their request threads. Wicket still thinks that TP-Processor1 has the pagemap locked, whereas that thread is waiting for mod_jk to deliver a new request.
I'd look back in the history of what TP-Processor1 has done to get in that state. Martijn On Tue, Oct 26, 2010 at 2:52 AM, Alec Swan <[email protected]> wrote: > Hello, > > Our production server stopped processing AJAX requests today. I looked > in the log files and noticed a "After 1 minute the Pagemap null is > still locked". > The exception stack trace is shown below followed by a dump of the > thread that was blocking the page. > > We are using Wicket 1.4.2, Tomcat 6.0 and Java 6. > > Could anybody help troubleshoot this problem? > > Thanks, > > Alec > > EXCEPTION > > 2010-10-25 21:55:32,501 GMT ERROR [TP-Processor12] > org.apache.wicket.RequestCycle - > org.apache.wicket.WicketRuntimeException: After 1 minute the Pagemap > null is still locked by: Thread[TP-Processor1,5,main], giving up > trying to get the page for path: 4:offersForm:offers:1:editOfferLink > Begin of stack trace of Thread[TP-Processor1,5,main] > java.net.SocketInputStream.socketRead0(Native Method) > java.net.SocketInputStream.read(SocketInputStream.java:129) > java.io.BufferedInputStream.fill(BufferedInputStream.java:218) > java.io.BufferedInputStream.read1(BufferedInputStream.java:258) > java.io.BufferedInputStream.read(BufferedInputStream.java:317) > org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:621) > org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:559) > > org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:686) > > org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891) > > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) > java.lang.Thread.run(Thread.java:619) > End of stack trace of Thread[TP-Processor1,5,main] > org.apache.wicket.protocol.http.request.InvalidUrlException: > org.apache.wicket.WicketRuntimeException: After 1 minute the Pagemap > null is still locked by: Thread[TP-Processor1,5,main], giving up > trying to get the page for path: 4:offersForm:offers:1:editOfferLink > Begin of stack trace of Thread[TP-Processor1,5,main] > java.net.SocketInputStream.socketRead0(Native Method) > java.net.SocketInputStream.read(SocketInputStream.java:129) > java.io.BufferedInputStream.fill(BufferedInputStream.java:218) > java.io.BufferedInputStream.read1(BufferedInputStream.java:258) > java.io.BufferedInputStream.read(BufferedInputStream.java:317) > org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:621) > org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:559) > > org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:686) > > org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891) > > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) > java.lang.Thread.run(Thread.java:619) > End of stack trace of Thread[TP-Processor1,5,main] > at > org.apache.wicket.protocol.http.WebRequestCycleProcessor.resolve(WebRequestCycleProcessor.java:262) > at org.apache.wicket.RequestCycle.step(RequestCycle.java:1310) > at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428) > at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) > at > org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479) > at > org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:312) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at > org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) > at > org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) > at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291) > at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769) > at > org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698) > at > org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) > at java.lang.Thread.run(Thread.java:619) > Caused by: org.apache.wicket.WicketRuntimeException: After 1 minute > the Pagemap null is still locked by: Thread[TP-Processor1,5,main], > giving up trying to get the page for path: > 4:offersForm:offers:1:editOfferLink > Begin of stack trace of Thread[TP-Processor1,5,main] > java.net.SocketInputStream.socketRead0(Native Method) > java.net.SocketInputStream.read(SocketInputStream.java:129) > java.io.BufferedInputStream.fill(BufferedInputStream.java:218) > java.io.BufferedInputStream.read1(BufferedInputStream.java:258) > java.io.BufferedInputStream.read(BufferedInputStream.java:317) > org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:621) > org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:559) > > org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:686) > > org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891) > > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) > java.lang.Thread.run(Thread.java:619) > End of stack trace of Thread[TP-Processor1,5,main] > at org.apache.wicket.Session.getPage(Session.java:769) > at > org.apache.wicket.request.AbstractRequestCycleProcessor.resolveRenderedPage(AbstractRequestCycleProcessor.java:458) > at > org.apache.wicket.protocol.http.WebRequestCycleProcessor.resolve(WebRequestCycleProcessor.java:144) > ... 24 more > > > THREAD DUMP > > INFO | jvm 1 | 2010/10/25 18:00:52 | "TP-Processor1" daemon > prio=10 tid=0x0a615c00 nid=0x47ed runnable [0x8b45c000] > INFO | jvm 1 | 2010/10/25 18:00:52 | java.lang.Thread.State: RUNNABLE > INFO | jvm 1 | 2010/10/25 18:00:52 | at > java.net.SocketInputStream.socketRead0(Native Method) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > java.net.SocketInputStream.read(SocketInputStream.java:129) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > java.io.BufferedInputStream.fill(BufferedInputStream.java:218) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > java.io.BufferedInputStream.read1(BufferedInputStream.java:258) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > java.io.BufferedInputStream.read(BufferedInputStream.java:317) > INFO | jvm 1 | 2010/10/25 18:00:52 | - locked <0x995c0d18> (a > java.io.BufferedInputStream) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:621) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:559) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:686) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) > INFO | jvm 1 | 2010/10/25 18:00:52 | at > java.lang.Thread.run(Thread.java:619) > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > -- Become a Wicket expert, learn from the best: http://wicketinaction.com Apache 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