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: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org