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From "Tao Yang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-6403) Invalid local resource request can raise NPE and make NM exit
Date Tue, 04 Apr 2017 03:29:41 GMT

     [ https://issues.apache.org/jira/browse/YARN-6403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tao Yang updated YARN-6403:
---------------------------
    Attachment: YARN-6403.004.patch
                YARN-6403.branch-2.8.004.patch

Thanks [~jlowe] for your suggestions. Client-side test is moved to TestApplicationClientProtocolRecords
now and TestContainerManagerWithLCE is updated to avoid failure. Attach new patches for branch-2.8
and trunk.

> Invalid local resource request can raise NPE and make NM exit
> -------------------------------------------------------------
>
>                 Key: YARN-6403
>                 URL: https://issues.apache.org/jira/browse/YARN-6403
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.8.0
>            Reporter: Tao Yang
>            Assignee: Tao Yang
>         Attachments: YARN-6403.001.patch, YARN-6403.002.patch, YARN-6403.004.patch, YARN-6403.branch-2.8.003.patch,
YARN-6403.branch-2.8.004.patch
>
>
> Recently we found this problem on our testing environment. The app that caused this problem
added a invalid local resource request(have no location) into ContainerLaunchContext like
this:
> {code}
>     localResources.put("test", LocalResource.newInstance(location,
>         LocalResourceType.FILE, LocalResourceVisibility.PRIVATE, 100,
>         System.currentTimeMillis()));
>     ContainerLaunchContext amContainer =
>         ContainerLaunchContext.newInstance(localResources, environment,
>           vargsFinal, null, securityTokens, acls);
> {code}
> The actual value of location was null although app doesn't expect that. This mistake
cause several NMs exited with the NPE below and can't restart until the nm recovery dirs were
deleted. 
> {code}
> FATAL org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher thread
> java.lang.NullPointerException
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourceRequest.<init>(LocalResourceRequest.java:46)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl$RequestResourcesTransition.transition(ContainerImpl.java:711)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl$RequestResourcesTransition.transition(ContainerImpl.java:660)
>         at org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:385)
>         at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
>         at org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
>         at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl.handle(ContainerImpl.java:1320)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl.handle(ContainerImpl.java:88)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl$ContainerEventDispatcher.handle(ContainerManagerImpl.java:1293)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl$ContainerEventDispatcher.handle(ContainerManagerImpl.java:1286)
>         at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:184)
>         at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:110)
>         at java.lang.Thread.run(Thread.java:745)
> {code}
> NPE occured when created LocalResourceRequest instance for invalid resource request.
> {code}
>   public LocalResourceRequest(LocalResource resource)
>       throws URISyntaxException {
>     this(resource.getResource().toPath(),  //NPE occurred here
>         resource.getTimestamp(),
>         resource.getType(),
>         resource.getVisibility(),
>         resource.getPattern());
>   }
> {code}
> We can't guarantee the validity of local resource request now, but we could avoid damaging
the cluster. Perhaps we can verify the resource both in ContainerLaunchContext and LocalResourceRequest?
Please feel free to give your suggestions.



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