11:19 p.m.
User development,
A new message was posted in the thread "StackOverflow after OutOfMemory":
http://community.jboss.org/message/530679#530679
Author : Mihir Patel
Profile : http://community.jboss.org/people/mihirp
Message:
--------------------------------------------------------------
Hello everyone,
We are usinghttp://www.jasig.org/cas version 3.3.5 which has support for JBossCache and we
are using JBoss Cache 3.2.1 with JGroups 2.6.13 on tomcat 6.0.20.
All tickets generated by CAS application are stored as attributes under single node
"ticket" so the Cache structure looks something like below:
\ <root node>
\ticket {key1=value1, key2=value2} (here key1 is ticket and value1 is one object
representing that ticket with id key1)
so, as you can see the cache will continue growing horizontally, with single node
"ticket" and everything else would be added as attributes to that node.
We are using READ_COMMITTED isolation level with SYNC replication using TCP protocol for
replication through JGroups. We are not using any inbuilt eviction policy, instead there
is a thread running which goes through all the key/value pair and calls
"isExpire" method on the object (value) and removes any expired ticket
attributes from the cache. We also have state transferred enable. Please see attached
config.
Here is the stack trace for OutOfMemory:
2010-02-26 12:39:23,518 ERROR [org.jasig.cas.ticket.registry.JBossCacheTicketRegistry]
(http-8443-183) org.jboss.cache.CacheException: java.lang.OutOfMemoryError: GC overhead
li
mit exceeded
org.jboss.cache.CacheException: java.lang.OutOfMemoryError: GC overhead limit exceeded
at
org.jboss.cache.interceptors.InterceptorChain.invoke(InterceptorChain.java:304)
at
org.jboss.cache.invocation.CacheInvocationDelegate.put(CacheInvocationDelegate.java:555)
at
org.jboss.cache.invocation.CacheInvocationDelegate.put(CacheInvocationDelegate.java:560)
at
org.jasig.cas.ticket.registry.JBossCacheTicketRegistry.addTicket(JBossCacheTicketRegistry.java:51)
at
org.jasig.cas.CentralAuthenticationServiceImpl.grantServiceTicket(CentralAuthenticationServiceImpl.java:224)
at
org.jasig.cas.CentralAuthenticationServiceImpl.grantServiceTicket(CentralAuthenticationServiceImpl.java:241)
at
org.jasig.cas.web.flow.GenerateServiceTicketAction.doExecute(GenerateServiceTicketAction.java:40)
at
org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:192)
at
org.springframework.webflow.engine.AnnotatedAction.execute(AnnotatedAction.java:146)
at
org.springframework.webflow.engine.ActionExecutor.execute(ActionExecutor.java:59)
at org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:156)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.DecisionState.doEnter(DecisionState.java:54)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.DecisionState.doEnter(DecisionState.java:54)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.DecisionState.doEnter(DecisionState.java:54)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.TransitionableState.onEvent(TransitionableState.java:107)
at org.springframework.webflow.engine.Flow.onEvent(Flow.java:534)
at
org.springframework.webflow.engine.impl.RequestControlContextImpl.signalEvent(RequestControlContextImpl.java:205)
at org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:161)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Flow.start(Flow.java:521)
at
org.springframework.webflow.engine.impl.RequestControlContextImpl.start(RequestControlContextImpl.java:193)
at
org.springframework.webflow.engine.impl.FlowExecutionImpl.start(FlowExecutionImpl.java:177)
at
org.springframework.webflow.executor.FlowExecutorImpl.launch(FlowExecutorImpl.java:187)
at
org.springframework.webflow.executor.support.FlowRequestHandler.handleFlowRequest(FlowRequestHandler.java:125)
at
org.springframework.webflow.executor.mvc.FlowController.handleRequestInternal(FlowController.java:165)
at
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.jasig.cas.web.init.SafeDispatcherServlet.service(SafeDispatcherServlet.java:115)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.inspektr.common.web.ClientInfoThreadLocalFilter.doFilterInternal(ClientInfoThreadLocalFilter.java:48)
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 com.jamonapi.JAMonFilter.doFilter(JAMonFilter.java:57)
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:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:567)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
at
org.jboss.cache.io.ExposedByteArrayOutputStream.write(ExposedByteArrayOutputStream.java:113)
at
java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1838)
at
java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1747)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1161)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at java.util.HashMap.writeObject(HashMap.java:1000)
at sun.reflect.GeneratedMethodAccessor166.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallObject(CacheMarshaller200.java:460)
at
org.jboss.cache.marshall.CacheMarshaller300.marshallObject(CacheMarshaller300.java:47)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallCommand(CacheMarshaller200.java:519)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallObject(CacheMarshaller200.java:314)
at
org.jboss.cache.marshall.CacheMarshaller300.marshallObject(CacheMarshaller300.java:47)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallCommand(CacheMarshaller200.java:519)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallObject(CacheMarshaller200.java:314)
at
org.jboss.cache.marshall.CacheMarshaller300.marshallObject(CacheMarshaller300.java:47)
at
org.jboss.cache.marshall.CacheMarshaller200.objectToObjectStream(CacheMarshaller200.java:191)
at
org.jboss.cache.marshall.CacheMarshaller200.objectToObjectStream(CacheMarshaller200.java:136)
2010-02-26 12:39:25,562 ERROR
[org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/cas].[cas]]
(http-8443-183) Servlet.service() for servlet cas threw exception
java.lang.OutOfMemoryError: GC overhead limit exceeded
at
org.jboss.cache.io.ExposedByteArrayOutputStream.write(ExposedByteArrayOutputStream.java:113)
at
java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1838)
at
java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1747)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1161)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at java.util.HashMap.writeObject(HashMap.java:1000)
at sun.reflect.GeneratedMethodAccessor166.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallObject(CacheMarshaller200.java:460)
at
org.jboss.cache.marshall.CacheMarshaller300.marshallObject(CacheMarshaller300.java:47)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallCommand(CacheMarshaller200.java:519)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallObject(CacheMarshaller200.java:314)
at
org.jboss.cache.marshall.CacheMarshaller300.marshallObject(CacheMarshaller300.java:47)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallCommand(CacheMarshaller200.java:519)
at
org.jboss.cache.marshall.CacheMarshaller200.marshallObject(CacheMarshaller200.java:314)
at
org.jboss.cache.marshall.CacheMarshaller300.marshallObject(CacheMarshaller300.java:47)
at
org.jboss.cache.marshall.CacheMarshaller200.objectToObjectStream(CacheMarshaller200.java:191)
at
org.jboss.cache.marshall.CacheMarshaller200.objectToObjectStream(CacheMarshaller200.java:136)
2010-02-26 12:39:35,140 ERROR [org.jgroups.protocols.TCP] (http-8443-117) failed handling
data from 10.10.22.18:33500
java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.jgroups.protocols.TP.dispatchToThreadPool(TP.java:1352)
at org.jgroups.protocols.TP.receive(TP.java:1325)
at org.jgroups.protocols.BasicTCP.receive(BasicTCP.java:258)
at org.jgroups.blocks.BasicConnectionTable.receive(BasicConnectionTable.java:239)
at org.jgroups.blocks.BasicConnectionTable.send(BasicConnectionTable.java:307)
at org.jgroups.protocols.TCP.send(TCP.java:55)
at org.jgroups.protocols.BasicTCP.sendToSingleMember(BasicTCP.java:219)
at org.jgroups.protocols.BasicTCP.sendToAllMembers(BasicTCP.java:204)
at org.jgroups.protocols.TP.doSend(TP.java:1474)
at org.jgroups.protocols.TP.send(TP.java:1464)
at org.jgroups.protocols.TP.down(TP.java:1185)
at org.jgroups.protocols.Discovery.down(Discovery.java:374)
at org.jgroups.protocols.MERGE2.down(MERGE2.java:175)
at org.jgroups.protocols.FD_SOCK.down(FD_SOCK.java:360)
at org.jgroups.protocols.FD.down(FD.java:315)
at org.jgroups.protocols.VERIFY_SUSPECT.down(VERIFY_SUSPECT.java:95)
at org.jgroups.protocols.pbcast.NAKACK.send(NAKACK.java:803)
at org.jgroups.protocols.pbcast.NAKACK.down(NAKACK.java:604)
at org.jgroups.protocols.pbcast.STABLE.down(STABLE.java:316)
at org.jgroups.protocols.pbcast.GMS.down(GMS.java:901)
at org.jgroups.protocols.FRAG2.fragment(FRAG2.java:256)
at org.jgroups.protocols.FRAG2.down(FRAG2.java:138)
at
org.jgroups.protocols.pbcast.STREAMING_STATE_TRANSFER.down(STREAMING_STATE_TRANSFER.java:377)
at org.jgroups.protocols.pbcast.FLUSH.down(FLUSH.java:291)
at org.jgroups.stack.ProtocolStack.down(ProtocolStack.java:461)
at org.jgroups.JChannel.downcall(JChannel.java:1540)
at
org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.down(MessageDispatcher.java:791)
at org.jgroups.blocks.RequestCorrelator.sendRequest(RequestCorrelator.java:304)
at org.jgroups.blocks.GroupRequest.sendRequest(GroupRequest.java:531)
at org.jgroups.blocks.GroupRequest.execute(GroupRequest.java:227)
at org.jgroups.blocks.MessageDispatcher.castMessage(MessageDispatcher.java:468)
at
org.jboss.cache.marshall.CommandAwareRpcDispatcher$ReplicationTask.call(CommandAwareRpcDispatcher.java:397)
2010-02-26 12:39:45,969 ERROR [org.jgroups.protocols.TCP]
(OOB-2,CasNonTxCache-cluster,10.10.22.18:33500) failed handling incoming message
java.lang.OutOfMemoryError: GC overhead limit exceeded
at
org.jgroups.util.ExposedByteArrayOutputStream.write(ExposedByteArrayOutputStream.java:47)
at java.io.DataOutputStream.writeShort(DataOutputStream.java:150)
at org.jgroups.Message.writeTo(Message.java:594)
at org.jgroups.util.Util.messageToByteBuffer(Util.java:792)
at org.jgroups.protocols.pbcast.NAKACK.sendXmitRsp(NAKACK.java:1045)
at org.jgroups.protocols.pbcast.NAKACK.handleXmitReq(NAKACK.java:983)
at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:718)
at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:167)
at org.jgroups.protocols.FD.up(FD.java:284)
at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:307)
at org.jgroups.protocols.MERGE2.up(MERGE2.java:144)
at org.jgroups.protocols.Discovery.up(Discovery.java:264)
at org.jgroups.protocols.TP.passMessageUp(TP.java:1273)
at org.jgroups.protocols.TP.access$100(TP.java:49)
at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1826)
at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1805)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
We start seeing StackOverflow after the above mentioned OutOfMemory:
2010-02-26 12:41:02,865 ERROR [org.jasig.cas.ticket.registry.JBossCacheTicketRegistry]
(http-8443-147) org.jboss.cache.CacheException: java.lang.StackOverflowError
org.jboss.cache.CacheException: java.lang.StackOverflowError
at
org.jboss.cache.interceptors.InterceptorChain.invoke(InterceptorChain.java:304)
at
org.jboss.cache.invocation.CacheInvocationDelegate.put(CacheInvocationDelegate.java:555)
at
org.jboss.cache.invocation.CacheInvocationDelegate.put(CacheInvocationDelegate.java:560)
at
org.jasig.cas.ticket.registry.JBossCacheTicketRegistry.addTicket(JBossCacheTicketRegistry.java:51)
at
org.jasig.cas.CentralAuthenticationServiceImpl.grantServiceTicket(CentralAuthenticationServiceImpl.java:224)
at
org.jasig.cas.CentralAuthenticationServiceImpl.grantServiceTicket(CentralAuthenticationServiceImpl.java:241)
at
org.jasig.cas.web.flow.GenerateServiceTicketAction.doExecute(GenerateServiceTicketAction.java:40)
at
org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:192)
at
org.springframework.webflow.engine.AnnotatedAction.execute(AnnotatedAction.java:146)
at
org.springframework.webflow.engine.ActionExecutor.execute(ActionExecutor.java:59)
at org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:156)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.DecisionState.doEnter(DecisionState.java:54)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.DecisionState.doEnter(DecisionState.java:54)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.DecisionState.doEnter(DecisionState.java:54)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Transition.execute(Transition.java:212)
at
org.springframework.webflow.engine.TransitionableState.onEvent(TransitionableState.java:107)
at org.springframework.webflow.engine.Flow.onEvent(Flow.java:534)
at
org.springframework.webflow.engine.impl.RequestControlContextImpl.signalEvent(RequestControlContextImpl.java:205)
at org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:161)
at org.springframework.webflow.engine.State.enter(State.java:191)
at org.springframework.webflow.engine.Flow.start(Flow.java:521)
at
org.springframework.webflow.engine.impl.RequestControlContextImpl.start(RequestControlContextImpl.java:193)
at
org.springframework.webflow.engine.impl.FlowExecutionImpl.start(FlowExecutionImpl.java:177)
at
org.springframework.webflow.executor.FlowExecutorImpl.launch(FlowExecutorImpl.java:187)
at
org.springframework.webflow.executor.support.FlowRequestHandler.handleFlowRequest(FlowRequestHandler.java:125)
at
org.springframework.webflow.executor.mvc.FlowController.handleRequestInternal(FlowController.java:165)
at
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.jasig.cas.web.init.SafeDispatcherServlet.service(SafeDispatcherServlet.java:115)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.inspektr.common.web.ClientInfoThreadLocalFilter.doFilterInternal(ClientInfoThreadLocalFilter.java:48)
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 com.jamonapi.JAMonFilter.doFilter(JAMonFilter.java:57)
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:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:567)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.StackOverflowError
at org.jboss.cache.mvcc.NodeReference.getFqn(NodeReference.java:257)
at org.jboss.cache.mvcc.NodeReference.getFqn(NodeReference.java:257)
: (1000+ lines with NodeReference.java:257)
:
We have also seen similar stack over flow for NodeReference.isValid method.
What I *think* is, due to some event (most probably due to concurrent access or some error
like OOM), NodeReference object has reference to its own as a delegate and results into
infinite loop causing StackOverflowError.
http://fisheye.jboss.org/browse/JBossCache/core/tags/3.2.1.GA/src/main/ja...
implements InternalNode and has reference to an InternalNode to delegate the calls to
underlying UnversionedNode (for READ_COMMITTED isolation level). NodeReference also has
setDelegate(InternalNode) method so it is possible to set a NodeReference object as its
own delegate which would result in StackOverflowError for method calls which are being
delegated. I tried to debug application and simulate some scenarios but have not been able
to reproduce the issue yet. Does anyone have faced this issue before? Any hint to
reproduce and resolve this issue would be greatly appreciated.
Thank you,
Mihir
--------------------------------------------------------------
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