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https://issues.jenkins-ci.org/browse/JENKINS-4950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=160389#comment-160389
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Baskaran D commented on JENKINS-4950:
-------------------------------------
Is there any way to remove these dead nodes directly through any configuration
files?
> NPE when trying to remove a dead node
> -------------------------------------
>
> Key: JENKINS-4950
> URL: https://issues.jenkins-ci.org/browse/JENKINS-4950
> Project: Jenkins
> Issue Type: Bug
> Components: master-slave
> Affects Versions: current
> Environment: Platform: All, OS: All
> Reporter: vessel
> Priority: Critical
>
> Hi,
> I currently have a node in the farm that has the Status "Dead(!)".
> Clicking on this "Dead(!)" shows: Thread is still alive.
> And trying to delete the node from the farm gives me a NPE:
> java.lang.NullPointerException
> at hudson.model.Hudson.removeNode(Hudson.java:1411)
> at hudson.model.Computer.doDoDelete(Computer.java:915)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185)
> at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101)
> at
> org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54)
> at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74)
> at
> org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
> at org.kohsuke.stapler.Stapler.invoke(Stapler.java:489)
> at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:318)
> at org.kohsuke.stapler.Stapler.invoke(Stapler.java:489)
> at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:144)
> at
> org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
> at org.kohsuke.stapler.Stapler.invoke(Stapler.java:489)
> at org.kohsuke.stapler.Stapler.invoke(Stapler.java:405)
> at org.kohsuke.stapler.Stapler.service(Stapler.java:116)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
> at winstone.ServletConfiguration.execute(ServletConfiguration.java:249)
> at winstone.RequestDispatcher.forward(RequestDispatcher.java:335)
> at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:378)
> at
> hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94)
> at
> org.jvnet.hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:38)
> at
> hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:97)
> at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86)
> at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
> at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
> at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47)
> at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
> at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
> at
> hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
> at
> org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
> at
> org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
> at
> org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
> at
> org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
> at
> org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
> at
> org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
> at
> hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66)
> at
> hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
> at
> hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
> at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
> at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
> at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
> at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
> at
> winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244)
> at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
> at java.lang.Thread.run(Thread.java:595)
> This is Hudson version 1.329
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