Steve, Shut down Jenkins, then using Task Manager, check for any rogue Jenkins or Java processes running on that machine and if any found, kill those processes.
Start Jenkins back up. You should only have one Jenkins and one Java process running on the Jenkins Master, unless you are also running jobs on that server. See if that helps. John On Aug 15, 2018, at 12:02 PM, Steve K <steve.kerxha...@carestream.com<mailto:steve.kerxha...@carestream.com>> wrote: Hello, We have been experiencing periodic crashes of the Jenkins server (almost one per week). It's bad enough that the system goes down, but bringing it back up has been problematic as well. We are running Jenkins version 2.89.2 on Windows Server 2008 R2 Standard. Here's a look at my jenkins.err.log: Aug 15, 2018 9:20:20 AM Main deleteWinstoneTempContents WARNING: Failed to delete the temporary Winstone file C:\Users\lx00057\AppData\Local\Temp\winstone\jenkins.war Aug 15, 2018 9:20:20 AM org.eclipse.jetty.util.log.Log initialized INFO: Logging initialized @669ms to org.eclipse.jetty.util.log.JavaUtilLog Aug 15, 2018 9:20:20 AM winstone.Logger logInternal INFO: Beginning extraction from war file Aug 15, 2018 9:20:20 AM org.eclipse.jetty.server.handler.ContextHandler setContextPath WARNING: Empty contextPath Aug 15, 2018 9:20:20 AM org.eclipse.jetty.server.Server doStart INFO: jetty-9.4.z-SNAPSHOT Aug 15, 2018 9:20:21 AM org.eclipse.jetty.webapp.StandardDescriptorProcessor visitServlet INFO: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet Aug 15, 2018 9:20:21 AM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart INFO: DefaultSessionIdManager workerName=node0 Aug 15, 2018 9:20:21 AM org.eclipse.jetty.server.session.DefaultSessionIdManager doStart INFO: No SessionScavenger set, using defaults Aug 15, 2018 9:20:21 AM org.eclipse.jetty.server.session.HouseKeeper startScavenging INFO: Scavenging every 600000ms Aug 15, 2018 9:20:21 AM org.eclipse.jetty.server.handler.ContextHandler doStart INFO: Started w.@3cbe{/,file:///D:/Jenkins/war/,AVAILABLE}{D:\Jenkins\war} Aug 15, 2018 9:20:21 AM org.eclipse.jetty.server.AbstractConnector doStop INFO: Stopped ServerConnector@172e513{HTTP/1.1,[http/1.1]}{0.0.0.0:8080} Aug 15, 2018 9:20:21 AM org.eclipse.jetty.server.session.HouseKeeper stopScavenging INFO: Stopped scavenging Aug 15, 2018 9:20:21 AM hudson.WebAppMain contextDestroyed INFO: Shutting down a Jenkins instance that was still starting up java.lang.Throwable: reason at hudson.WebAppMain.contextDestroyed(WebAppMain.java:388) at org.eclipse.jetty.server.handler.ContextHandler.callContextDestroyed(ContextHandler.java:898) at org.eclipse.jetty.servlet.ServletContextHandler.callContextDestroyed(ServletContextHandler.java:545) at org.eclipse.jetty.server.handler.ContextHandler.stopContext(ContextHandler.java:873) at org.eclipse.jetty.servlet.ServletContextHandler.stopContext(ServletContextHandler.java:355) at org.eclipse.jetty.webapp.WebAppContext.stopWebapp(WebAppContext.java:1507) at org.eclipse.jetty.webapp.WebAppContext.stopContext(WebAppContext.java:1471) at org.eclipse.jetty.server.handler.ContextHandler.doStop(ContextHandler.java:927) at org.eclipse.jetty.servlet.ServletContextHandler.doStop(ServletContextHandler.java:271) at org.eclipse.jetty.webapp.WebAppContext.doStop(WebAppContext.java:569) at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) at org.eclipse.jetty.util.component.ContainerLifeCycle.stop(ContainerLifeCycle.java:142) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStop(ContainerLifeCycle.java:160) at org.eclipse.jetty.server.handler.AbstractHandler.doStop(AbstractHandler.java:124) at org.eclipse.jetty.server.Server.doStop(Server.java:523) at org.eclipse.jetty.util.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:89) at winstone.Launcher.shutdown(Launcher.java:307) at winstone.Launcher.<init>(Launcher.java:167) at winstone.Launcher.main(Launcher.java:354) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at Main._main(Main.java:294) at Main.main(Main.java:132) Aug 15, 2018 9:20:21 AM org.eclipse.jetty.server.handler.ContextHandler doStop INFO: Stopped w.@3cbe{/,null,UNAVAILABLE}{D:\Jenkins\war} Exception in thread "Jenkins initialization thread" java.lang.NoClassDefFoundError: hudson/util/HudsonFailedToLoad at hudson.WebAppMain$3.run(WebAppMain.java:247) Caused by: java.lang.ClassNotFoundException: hudson.util.HudsonFailedToLoad at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:560) at java.lang.ClassLoader.loadClass(Unknown Source) ... 1 more Aug 15, 2018 9:20:21 AM winstone.Logger logInternal INFO: Winstone shutdown successfully java.io.IOException: Failed to start Jetty at winstone.Launcher.<init>(Launcher.java:156) at winstone.Launcher.main(Launcher.java:354) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at Main._main(Main.java:294) at Main.main(Main.java:132) Caused by: java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Unknown Source) at sun.nio.ch.Net.bind(Unknown Source) at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source) at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source) at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:298) at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80) at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:236) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.eclipse.jetty.server.Server.doStart(Server.java:431) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at winstone.Launcher.<init>(Launcher.java:154) ... 7 more Aug 15, 2018 9:20:21 AM winstone.Logger logInternal SEVERE: Container startup failed java.io.IOException: Failed to start Jetty at winstone.Launcher.<init>(Launcher.java:156) at winstone.Launcher.main(Launcher.java:354) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at Main._main(Main.java:294) at Main.main(Main.java:132) Caused by: java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Unknown Source) at sun.nio.ch.Net.bind(Unknown Source) at sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source) at sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source) at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:298) at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80) at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:236) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.eclipse.jetty.server.Server.doStart(Server.java:431) at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at winstone.Launcher.<init>(Launcher.java:154) ... 7 more Interesting info from the jenkins.wrapper.log 2018-08-15 09:19:15,056 INFO - Starting ServiceWrapper in the service mode 2018-08-15 09:19:15,572 INFO - Starting D:\Jenkins\jre\bin\java -Xrs -Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle -jar "D:\Jenkins\jenkins.war" --httpPort=8080 2018-08-15 09:19:15,588 INFO - Starting D:\Jenkins\jre\bin\java -Xrs -Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle -jar "D:\Jenkins\jenkins.war" --httpPort=8080 2018-08-15 09:19:15,603 INFO - Started process 3716 2018-08-15 09:19:15,619 DEBUG - Forwarding logs of the process System.Diagnostics.Process (java) to winsw.SizeBasedRollingLogAppender I don't understand why there are two "Starting D:\Jenkins\jre\bin\java..." commands. My jenkins.xml <!-- Windows service definition for Jenkins To uninstall, run "jenkins.exe stop" to stop the service, then "jenkins.exe uninstall" to uninstall the service. Both commands don't produce any output if the execution is successful. --> <service> <id>jenkins</id> <name>Jenkins</name> <description>This service runs Jenkins continuous integration system.</description> <env name="JENKINS_HOME" value="%BASE%"/> <!-- if you'd like to run Jenkins with a specific version of Java, specify a full path to java.exe. The following value assumes that you have java in your PATH. --> <executable>%BASE%\jre\bin\java</executable> <arguments>-Xrs -Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycl e -jar "%BASE%\jenkins.war" --httpPort=8080</arguments> <!-- interactive flag causes the empty black Java window to be displayed. I'm still debugging this. <interactive /> --> <logmode>rotate</logmode> </service> I'd appreciate any helpful information you may be able to provide. If there is additional information that I could provide to help determine a cause/fix for the problems I'm experiencing, please let me know. Thanks in advance. Steve K. -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com<mailto:jenkinsci-users+unsubscr...@googlegroups.com>. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/8f81da76-deb6-47a3-a781-a33ba86ee7d1%40googlegroups.com<https://groups.google.com/d/msgid/jenkinsci-users/8f81da76-deb6-47a3-a781-a33ba86ee7d1%40googlegroups.com?utm_medium=email&utm_source=footer>. 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