Hi,
I know this is quite OT but maybe someone has a cool idea.
We are currently experiencing stange behaviour of tomcat (or the VM).
Our tomcat hangs (not reproduceable, but probably on parallel requests
to similar methods) in session.getAttibute():
here some of the stacktraces:
"http-8580-Processor3" daemon prio=1 tid=0x7cdf11d0 nid=0x3269 runnable
[7d7fe000..7d7ff8bc]
at java.util.HashMap.get(HashMap.java:325)
at
org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:975)
at
org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:109)
at
de.friendscout.datingr4.shared.presentation.action.BaseAction.getUserId(BaseAction.java:653)
at
de.friendscout.datingr4.onlinearea.presentation.action.BaseOnlineAreaAction.getSettings(BaseOnlineAreaAction.java:89)
at
de.friendscout.datingr4.onlinearea.presentation.action.GetOnlineUsersAction.doExecute(GetOnlineUsersAction.java:49)
"http-8580-Processor1" daemon prio=1 tid=0x7d3fa078 nid=0x3269 runnable
[7ce7f000..7ce7f8bc]
at java.util.HashMap.get(HashMap.java:325)
at
org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:975)
at
org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:109)
at
de.friendscout.datingr4.shared.presentation.action.BaseAction.getUserId(BaseAction.java:653)
at
de.friendscout.datingr4.onlinearea.presentation.action.ShowFiltersAction.doExecute(ShowFiltersAction.java:42)
at
de.friendscout.datingr4.shared.presentation.action.BaseAction.execute(BaseAction.java:316)
"http-8580-Processor24" daemon prio=1 tid=0x7d430200 nid=0x3269 runnable
[7e77f000..7e77f8bc]
at java.util.HashMap.get(HashMap.java:325)
at
org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:975)
at
org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:109)
at
de.friendscout.datingr4.shared.presentation.util.RealmUtility.initRealm(RealmUtility.java:66)
at
de.friendscout.datingr4.shared.presentation.util.RealmUtility.initRealm(RealmUtility.java:61)
at
de.friendscout.datingr4.shared.presentation.controller.ControllerServlet.doGet(ControllerServlet.java:139)
My Java knowledge isn't sufficent to explain how something can hang in
HashMap.get() since its not synchronized. Neither are
the .getAttribute() methods of the StandardSession or
StandardSessionFacade.
We are using jdk1.4, tomcat 5.0.25
any ideas? anybody?
regards
Leon
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