We are running JRun 3.02a Advanced version on Solaris 2.7 and Suns JVM
1.2.2_08. We are currently running Netscape Enterprise 3.63.
This configuration freezes /deadlocks a little too frequently.
Using "kill -QUIT <pid>" we can create stack traces when the stops occur. It
seems that the deadlock is related to jrun log-event. When we look at line
[18] for t@10150 the method call is :
java.util.ResourceBundle.getBundle(ResourceBundle.java:417) . t@10193 line
[1] tries to do a getBundle for the same resource.
Could this be a JRun bug? Does anyone know what we can do here?
Regards,
Roar Johansen
SIGQUIT
A SIGQUIT has been received. Do you want to:
[ 0 ] continue program
[ 1 ] check & print one deadlock
[ 2 ] check & print all deadlocks
[ 3 ] dump thread stacks
[ 4 ] dump lock registry
[ 5 ] heap inspection
[ 6 ] terminate program
Type number corresponding to selected action:
FOUND A JAVA LEVEL DEADLOCK:
---------------------------
t@10193 waiting to lock object@0xeac110b8:"java/lang/Class"
which is locked by t@10150
t@10150 waiting to lock object@0xeadd08a4:"java/lang/Object"
which is locked by t@10193
JAVA STACK INFORMATION FOR THREADS LISTED ABOVE:
-----------------------------------------------
Java Stack for t@10193 (EE = 0x67c9550) "jcp-1362" :
==========
[1] java.util.ResourceBundle.getBundle(ResourceBundle.java:417)
[2] java.util.ResourceBundle.getBundle(ResourceBundle.java:353)
[3]
java.text.DateFormatSymbols.getLocaleElements(DateFormatSymbols.java:412)
[4] java.text.DateFormatSymbols.cacheLookup(DateFormatSymbols.java:426)
[5] java.text.DateFormatSymbols.initializeData(DateFormatSymbols.java:454)
[6] java.text.DateFormatSymbols.<init>(DateFormatSymbols.java:107)
[7] java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:283)
[8] java.text.SimpleDateFormat.<init>(SimpleDateFormat.java:275)
[9]
allaire.jrun.util.PropertiesUtil.getVariableValue(PropertiesUtil.java:704)
[10]
allaire.jrun.util.PropertiesUtil.expandDynamicVariables(PropertiesUtil.java:
595)
[11] allaire.jrun.logging.LogEvent.format(LogEvent.java:218)
[12] allaire.jrun.logging.FileLogWriter.logEvent(FileLogWriter.java:291)
[13]
allaire.jrun.logging.ThreadedLogger.processQueue(ThreadedLogger.java:229)
[14] allaire.jrun.logging.ThreadedLogger.flush(ThreadedLogger.java:177)
[15] allaire.jrun.logging.ThreadedLogger.logEvent(ThreadedLogger.java:145)
[16]
allaire.jrun.logging.LoggingService.sendLogEvent(LoggingService.java:207)
[17] allaire.jrun.logging.LoggingService.logError(LoggingService.java:273)
[18] allaire.jrun.logging.LogDelegate.logError(LogDelegate.java:47)
[19] allaire.jrun.jrpp.ProxyService.swapRunnable(ProxyService.java:45)
[20] allaire.jrun.ThreadPool.swapRunnable(ThreadPool.java:216)
[21] allaire.jrun.WorkerThread.run(WorkerThread.java:62)
Java Stack for t@10150 (EE = 0x6a908b0) "jcp-1356" :
==========
[1] allaire.jrun.logging.ThreadedLogger.flush(ThreadedLogger.java:177)
[2] allaire.jrun.logging.ThreadedLogger.logEvent(ThreadedLogger.java:145)
[3]
allaire.jrun.logging.LoggingService.sendLogEvent(LoggingService.java:207)
[4] allaire.jrun.logging.LoggingService.logError(LoggingService.java:273)
[5] allaire.jrun.resource.JarResource.loadDirectories(JarResource.java:188)
[6] allaire.jrun.resource.JarResource.<init>(JarResource.java:71)
[7] allaire.jrun.resource.JarResource.<init>(JarResource.java:49)
[8] allaire.jrun.resource.JarResource.<init>(JarResource.java:30)
[9]
allaire.jrun.servlet.JRunResourceManager.getResource(JRunResourceManager.jav
a:84)
[10]
allaire.jrun.servlet.JRunResourceManager.getResource(JRunResourceManager.jav
a:84)
[11]
allaire.jrun.servlet.JRunResourceManager.getResourceURL(JRunResourceManager.
java:191)
[12] allaire.jrun.servlet.JRunSE.getResource(JRunSE.java:1457)
[13]
allaire.jrun.servlet.JRunServletLoader.getClassBytes(JRunServletLoader.java:
619)
[14]
allaire.jrun.servlet.JRunServletLoader.loadClass(JRunServletLoader.java:513)
[15]
allaire.jrun.servlet.JRunServletLoader.loadClass(JRunServletLoader.java:401)
[16] java.lang.ClassLoader.loadClass(ClassLoader.java:256)
[17] java.util.ResourceBundle.findBundle(ResourceBundle.java:534)
[18] java.util.ResourceBundle.getBundle(ResourceBundle.java:417)
[19] java.util.ResourceBundle.getBundle(ResourceBundle.java:339)
[20] no.finn.framework.LoginStuff.executeLogon(LoginStuff.java:32)
[21]
no.finn.framework.navigation.FinnNavigator.doFINNService(FinnNavigator.java:
81)
[22] no.finn.framework.navigation.FinnServlet.service(FinnServlet.java:64)
[23] javax.servlet.http.HttpServlet.service(HttpServlet.java:860)
[24] allaire.jrun.servlet.JRunSE.service(JRunSE.java:1003)
[25] allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:869)
[26]
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.jav
a:58)
[27] allaire.jrun.servlet.JRunSE.service(JRunSE.java:1078)
[28] allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:322)
[29] allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:379)
[30] allaire.jrun.ThreadPool.run(ThreadPool.java:245)
[31] allaire.jrun.WorkerThread.run(WorkerThread.java:62)
-----------------------------------------------
Found 1 deadlock
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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