Failed to Replicate SessionId - Concurrency Problem
Session Level failover works fine for me as long as I don't have a large number of items in the session. Once the number of items in session reaches a certain size (I don't know the majic number) I get the following error. Can anyone give me any information on what might be happening and how to fix it?
Here is the Exception
12:42:31,666 WARN [InstantSnapshotManager] Failed to replicate sessionID:6nQzmX
01GSraKQRIgK2QTg**
javax.ejb.EJBException: Exception in setHttpSession: javax.ejb.EJBException: Exc
eption in setHttpSession: RuntimeMBeanException: RuntimeException in MBean opera
tion 'invoke(org.jboss.invocation.Invocation)'
Cause: javax.ejb.EJBException: java.util.ConcurrentModificationException
at org.jboss.ha.httpsession.server.ClusteredHTTPSessionService.setHttpSe
ssion(ClusteredHTTPSessionService.java:117)
at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBea
nDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
at $Proxy41.setHttpSession(Unknown Source)
at org.jboss.web.tomcat.session.ClusterManager.storeSession(ClusterManag
er.java:615)
at org.jboss.web.tomcat.session.InstantSnapshotManager.snapshot(InstantS
napshotManager.java:39)
at org.jboss.web.tomcat.session.ClusteredSessionValve.invoke(ClusteredSe
ssionValve.java:89)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:
2417)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatche
rValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
yAssociationValve.java:65)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:
577)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
t.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcesso
r.java:1040)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.ja
va:1151)
at java.lang.Thread.run(Thread.java:534)