Dear all, I have tomcat 5.5.27 and jdk 1.5.0_17
As someone suggested to the list I enabled HeapDumpOnOutOfMemoryError. I have javamelody running to monitor tomcat. The only thing that I see is that memory use increases just before the system crashed. The system has crashed only showing this in the catalina.log: May 8, 2012 12:03:48 PM org.apache.tomcat.util.http.Parameters processParameters WARNING: Parameters: Character decoding failed. Parameter skipped. java.io.CharConversionException: isHexDigit at org.apache.tomcat.util.buf.UDecoder.convert(UDecoder.java:87) at org.apache.tomcat.util.buf.UDecoder.convert(UDecoder.java:48) at org.apache.tomcat.util.http.Parameters.urlDecode(Parameters.java:411) at org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:393) at org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:344) at org.apache.catalina.connector.Request.parseParameters(Request.java:2401) at org.apache.catalina.connector.Request.getParameterNames(Request.java:1047) at org.apache.catalina.connector.RequestFacade.getParameterNames(RequestFacade.java:369) at javax.servlet.ServletRequestWrapper.getParameterNames(ServletRequestWrapper.java:178) at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1225) at org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:821) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:185) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:159) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.valves.FastCommonAccessLogValve.invoke(FastCommonAccessLogValve.java:482) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:595) May 8, 2012 12:03:48 PM org.apache.tomcat.util.http.Parameters processParameters WARNING: Parameters: Invalid chunk ignored. Many entries like: May 8, 2012 12:03:48 PM org.apache.tomcat.util.http.Parameters processParameters WARNING: Parameters: Invalid chunk ignored. until I get : May 8, 2012 1:50:41 PM org.apache.coyote.http11.Http11BaseProtocol pause INFO: Pausing Coyote HTTP/1.1 on http-80 May 8, 2012 1:50:41 PM org.apache.coyote.http11.Http11BaseProtocol pause INFO: Pausing Coyote HTTP/1.1 on http-443 No heapdump file that I can find (I searched for hprof, heapdump, javacore, nothing). I have just added to the catalina opts this: -XX:HeapDumpPath=/opt/tomcat5/logs/ Just in case it does need a specific place to save the dumps generated. Not sure if the isHexDigit exception is causing this. but it happens 2 hours before the system breaks. I really don't know what to enable to get to know what is causing Tomcat to crash Regards, Miguel --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
