August, yes, it seems like Castor JDO is trying to acquire locks all over the place. Can you share some information on how you are trying to use Castor ? And most importantly, what version of Castor are you using ? On what OS ? What database system ? Etc.
Werner PS You could try to set a timeout and see whether this resolves your problem. Or at the minimum, you'll propably see LockNotGrantedExceptions after the timeout period you specified. -----Ursprüngliche Nachricht----- Von: August Detlefsen [mailto:[EMAIL PROTECTED] Gesendet: Montag, 29. August 2005 19:41 An: [email protected] Betreff: [castor-dev] ObjectLock.acquireLoadLock using up all threads? I've been seeing my server fail many times over the past few days and when it does the thread dump is always full of these stack traces (like every single processor thread). I read them to mean that Castor is waiting on database resources. Is that correct? Can anyone shed some light as to what is happening here? Thanks, August "http-80-Processor15" daemon prio=10 tid=0x08869b50 nid=0x19 in Object.wait() [0x71467000..0x71468cb8] at java.lang.Object.wait(Native Method) at java.lang.Object.wait(Object.java:474) at org.exolab.castor.persist.ObjectLock.acquireLoadLock(ObjectLock.java:385) - locked <0x7f7549e8> (a org.exolab.castor.persist.ObjectLock) at org.exolab.castor.persist.LockEngine$TypeInfo.acquire(LockEngine.java:1252) at org.exolab.castor.persist.LockEngine$TypeInfo.access$300(LockEngine.java:1055) at org.exolab.castor.persist.LockEngine.load(LockEngine.java:357) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:698) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:604) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:810) at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:698) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:604) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:810) at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:698) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:604) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:810) at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:698) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.persist.TransactionContext.load(TransactionContext.java:604) - locked <0x7fa77578> (a org.exolab.castor.jdo.engine.TransactionContextImpl) at org.exolab.castor.jdo.engine.DatabaseImpl.load(DatabaseImpl.java:316) at org.exolab.castor.jdo.engine.DatabaseImpl.load(DatabaseImpl.java:329) at com.mycompany.servlets.content.PageController.getNavPage(PageController.java:835) at org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:139) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.mycompany.SSOFilter.doFilter(SSOFilter.java:187) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:204) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:526) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] ------------------------------------------------- ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
