Hi Saurabh, Is the problem tomcat-wide or only your Manager App suffering from this problem?
On Mon, May 3, 2010 at 7:48 PM, Saurabh Singh <singh...@gmail.com> wrote: > Hi, > > I am running a few applications on Tomcat 5.5.17, I used to normally go to > 'Tomcat Manager' App and click the 'Server Status' link on top right side > of > 'Application List' page to monitor thread counts, memory usage etc.. > My OS is Fedora Core-6 (2.6.22.9-61.fc6PAE) > > This used to work well till yesterday but today it's giving HTML - 500 > error. > There have been no changes made to Tomcat configuration in last 5-6 days > (tomcat is re-started daily and this was working after the last change made > by me - which was to increase thread count of 8080 connector from 150 to > 200; but this was working for many days after that change was done and > tomcat restarted) > > Can someone please help as to what may be wrong? > > Below is Stack Trace from catalina.out > SEVERE: Servlet.service() for servlet Status threw exception > javax.management.InstanceNotFoundException: > Catalina:type=RequestProcessor,worker=http-8080,name=HttpRequest1012 > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(Unknown > Source) > at > com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(Unknown > Source) > at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(Unknown > Source) > at > > org.apache.catalina.manager.StatusTransformer.writeProcessorState(StatusTransformer.java:375) > at > > org.apache.catalina.manager.StatusTransformer.writeConnectorState(StatusTransformer.java:306) > at > > org.apache.catalina.manager.StatusManagerServlet.doGet(StatusManagerServlet.java:290) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) > 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 > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) > at > > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) > at > > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) > at > > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) > at > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) > 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:869) > at > > org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) > at > > org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) > at > > org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) > at > > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) > at java.lang.Thread.run(Unknown Source) > > > Thanks & Regards > Saurabh Singh > -- Jie Sheng, Chua (+65) 97520245 chuajiesh...@gmail.com The contents of this email are confidential to the intended recipient and may not be disclosed. Although it is believed that this email and any attachments are virus free, it is the responsibility of the recipient to confirm this.
