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https://issues.apache.org/jira/browse/SLIDER-1227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16011081#comment-16011081
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Billie Rinaldi commented on SLIDER-1227:
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[~manojsamel], I have not thought of a good way to determine the group from the
component name, since numbers and separators are allowed characters. This is
why the group and name are both explicitly included in the label.
In my opinion, the current design is cleaner because the user does not need to
know about Slider's internal concept of a group (except in this case where a
bug surfaced). The components are declared the same way as they were before,
and there is only the addition of a boolean configuration property to give the
component instances unique IDs.
> Component name with 3 "_" gives NPE in 0.92, is working in 0.80
> ---------------------------------------------------------------
>
> Key: SLIDER-1227
> URL: https://issues.apache.org/jira/browse/SLIDER-1227
> Project: Slider
> Issue Type: Bug
> Components: core
> Affects Versions: Slider 0.92
> Reporter: Manoj Samel
>
> Running slider 0.92 on CDH 5.5.1 (which is Hadoop 2.6), with Kerberos
> I am deploying a application with multiple components. The components start
> but fail to heart beat to slider AM. The slider AM log shows NPE at container
> heartbeat URLs as below.
> 2017-04-12 00:44:05,741 [2011871076@qtp-814377348-5] INFO
> agent.AgentProviderService - Handling registration: responseId=-1
> timestamp=1491957845550
> label=container_e95_1476898378926_91401_01_000003___solo___super
> hostname=node1078
> expectedState=INIT
> actualState=INIT
> appVersion=null
> 2017-04-12 00:44:05,741 [2011871076@qtp-814377348-5] INFO
> agent.AgentProviderService - label:
> container_e95_1476898378926_91401_01_000003___solo___super pkg: null
> 2017-04-12 00:44:05,741 [2011871076@qtp-814377348-5] INFO
> agent.AgentProviderService - Registration response:
> RegistrationResponse{response=OK, responseId=0, statusCommands=null}
> 2017-04-12 00:44:05,871 [Socket Reader #1 for port 32120] INFO ipc.Server -
> Auth successful for slideradmin@BIGDATA (auth:SIMPLE)
> 2017-04-12 00:44:05,873 [Socket Reader #1 for port 32120] INFO
> authorize.ServiceAuthorizationManager - Authorization successful for
> slideradmin@BIGDATA (auth:TOKEN) for protocol=interface
> org.apache.slider.server.appmaster.rpc.SliderClusterProtocolPB
> 2017-04-12 00:44:15,749 [1005856666@qtp-814377348-7] ERROR mortbay.log -
> /ws/v1/slider/agents/container_e95_1476898378926_91401_01_000002___pdx__svt___ten85/heartbeat
> java.lang.NullPointerException
> at
> org.apache.slider.providers.agent.AgentProviderService.handleHeartBeat(AgentProviderService.java:1090)
> at
> org.apache.slider.server.appmaster.web.rest.agent.AgentResource.heartbeat(AgentResource.java:98)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> 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.SubLocatorRule.accept(SubLocatorRule.java:134)
> 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.service(ServletContainer.java:699)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 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$RequestHandler.content(HttpConnection.java:945)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 2017-04-12 00:44:15,750 [2011871076@qtp-814377348-5] ERROR mortbay.log -
> /ws/v1/slider/agents/container_e95_1476898378926_91401_01_000004___pdx__svt___ten83/heartbeat
> java.lang.NullPointerException ....
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