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Karam Singh commented on YARN-2602: ----------------------------------- Following is Stack Trace from TimelineServer {code} 2014-09-24 22:53:34,634 WARN webapp.GenericExceptionHandler (GenericExceptionHandler.java:toResponse(98)) - INTERNAL_SERVER_ERROR javax.ws.rs.WebApplicationException: java.lang.NullPointerException at org.apache.hadoop.yarn.server.webapp.WebServices.getApps(WebServices.java:154) at org.apache.hadoop.yarn.server.applicationhistoryservice.webapp.AHSWebServices.getApps(AHSWebServices.java:83) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185) at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108) at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469) at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349) at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339) at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537) at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:886) at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:834) at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:795) at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163) at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58) at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118) at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:96) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:572) at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:542) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.apache.hadoop.http.HttpServer2$QuotingInputFilter.doFilter(HttpServer2.java:1223) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Caused by: java.lang.NullPointerException at org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerOnTimelineStore.convertToApplicationReport(ApplicationHistoryManagerOnTimelineStore.java:228) at org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerOnTimelineStore.generateApplicationReport(ApplicationHistoryManagerOnTimelineStore.java:482) at org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerOnTimelineStore.getAllApplications(ApplicationHistoryManagerOnTimelineStore.java:102) at org.apache.hadoop.yarn.server.webapp.WebServices$1.run(WebServices.java:149) at org.apache.hadoop.yarn.server.webapp.WebServices$1.run(WebServices.java:146) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614) at org.apache.hadoop.yarn.server.webapp.WebServices.getApps(WebServices.java:145) {code} > Generic History Service of TimelineServer sometimes not able to handle NPE > -------------------------------------------------------------------------- > > Key: YARN-2602 > URL: https://issues.apache.org/jira/browse/YARN-2602 > Project: Hadoop YARN > Issue Type: Bug > Components: timelineserver > Affects Versions: 2.6.0 > Environment: ATS is running with AHS/GHS enabled to use TimelineStore. > Running for 4-5 days, with many random example jobs running > Reporter: Karam Singh > > ATS is running with AHS/GHS enabled to use TimelineStore. > Running for 4-5 day, with many random example jobs running . > When I ran WS API for AHS/GHS: > {code} > curl --negotiate -u : > 'http://<TIMELINE_SERFVER_WEPBAPP_ADDR>/v1/applicationhistory/apps/application_1411579118376_0001' > {code} > It ran successfully. > However > {code} > curl --negotiate -u : > 'http://<TIMELINE_SERFVER_WEPBAPP_ADDR>/ws/v1/applicationhistory/apps' > {"exception":"WebApplicationException","message":"java.lang.NullPointerException","javaClassName":"javax.ws.rs.WebApplicationException"} > {code} > Failed with Internal server error 500. > After looking at TimelineServer logs found that there was NPE: -- This message was sent by Atlassian JIRA (v6.3.4#6332)