[opencms-dev] Server crash: Exception Processing ErrorPage
Paul-Inge Flakstad
flakstad at npolar.no
Tue Jan 12 13:30:12 CET 2010
Hi everyone
One of our OpenCms servers froze up today, and I can't really see why it did. It has been running for quite some time without notable problems, and the only thing special about today is that there has recently been a bit more traffic than usual (but still not very much traffic).
Here's the snippet from ${TOMCAT_HOME}/logs/localhost.2010-01-12.log:
Jan 12, 2010 10:07:01 AM org.apache.catalina.core.StandardHostValve custom
295 SEVERE: Exception Processing ErrorPage[errorCode=500, location=/opencms-errorhandler/system/handler/handle500.html]
296 org.opencms.main.CmsInitException: OpenCms is already initialized!
297 at org.opencms.main.OpenCmsCore.getInstance(OpenCmsCore.java:289)
298 at org.opencms.main.OpenCms.getDefaultUsers(OpenCms.java:201)
299 at org.opencms.file.CmsUser.isGuestUser(CmsUser.java:504)
300 at org.opencms.main.OpenCmsCore.errorHandling(OpenCmsCore.java:1869)
301 at org.opencms.main.OpenCmsCore.showResource(OpenCmsCore.java:1494)
302 at org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:153)
303 at org.opencms.main.OpenCmsServletErrorHandler.doGet(OpenCmsServletErrorHandler.java:82)
304 at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
305 at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
306 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
307 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
308 at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
309 at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
310 at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399)
311 at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
312 at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:364)
313 at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:285)
314 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
315 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
316 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
317 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
318 at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
319 at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
320 at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
321 at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
322 at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
323 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
324 at java.lang.Thread.run(Thread.java:619)
Identical exception (same timestamp) follows again nine more times,
then the exception below follows identically 7 times in a row.
Jan 12, 2010 10:07:01 AM org.apache.catalina.core.StandardHostValve custom
536 SEVERE: Exception Processing ErrorPage[errorCode=500, location=/opencms-errorhandler/system/handler/handle500.html]
537 java.lang.NullPointerException
538 at org.apache.log4j.spi.LocationInfo.<init>(LocationInfo.java:112)
539 at org.apache.log4j.spi.LoggingEvent.getLocationInformation(LoggingEvent.java:247)
540 at org.apache.log4j.helpers.PatternParser$ClassNamePatternConverter.getFullyQualifiedName(PatternParser.java:538)
541 at org.apache.log4j.helpers.PatternParser$NamedPatternConverter.convert(PatternParser.java:511)
542 at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:65)
543 at org.apache.log4j.PatternLayout.format(PatternLayout.java:502)
544 at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:302)
545 at org.apache.log4j.RollingFileAppender.subAppend(RollingFileAppender.java:263)
546 at org.apache.log4j.WriterAppender.append(WriterAppender.java:160)
547 at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
548 at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
549 at org.apache.log4j.Category.callAppenders(Category.java:206)
550 at org.apache.log4j.Category.forcedLog(Category.java:391)
551 at org.apache.log4j.Category.log(Category.java:856)
552 at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:257)
553 at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:719)
554 at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
555 at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:399)
556 at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
557 at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:364)
558 at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:285)
559 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
560 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
561 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
562 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
563 at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
564 at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
565 at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
566 at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
567 at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
568 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
569 at java.lang.Thread.run(Thread.java:619)
Does anyone have an idea what could have caused this?
Thanks,
Paul
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