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https://issues.apache.org/jira/browse/YARN-7890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16353223#comment-16353223
]
Billie Rinaldi commented on YARN-7890:
--------------------------------------
+1 for patch 002. This fixes the NPE. Thanks for the patch, [~jlowe], and
thanks for the review, [~shaneku...@gmail.com]! I'll commit this one.
> NPE during container relaunch
> -----------------------------
>
> Key: YARN-7890
> URL: https://issues.apache.org/jira/browse/YARN-7890
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.9.0, 3.0.0-alpha1
> Reporter: Billie Rinaldi
> Assignee: Jason Lowe
> Priority: Major
> Attachments: YARN-7890.001.patch, YARN-7890.002.patch
>
>
> While running a recent build of trunk, I saw the following:
> {noformat}
> 2018-02-02 21:02:40,026 INFO
> org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl:
> Container container_e02_1517604848419_0002_01_000004 transitioned from
> RELAUNCHING to RUNNING
> 2018-02-02 21:02:40,026 WARN
> org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerRelaunch:
> Failed to relaunch container.
> java.lang.NullPointerException
> at
> java.util.Collections$UnmodifiableCollection.<init>(Collections.java:1026)
> at
> java.util.Collections$UnmodifiableList.<init>(Collections.java:1302)
> at java.util.Collections.unmodifiableList(Collections.java:1287)
> at
> org.apache.hadoop.yarn.server.nodemanager.executor.ContainerStartContext.getFilecacheDirs(ContainerStartContext.java:200)
> at
> org.apache.hadoop.yarn.server.nodemanager.LinuxContainerExecutor.buildContainerRuntimeContext(LinuxContainerExecutor.java:651)
> at
> org.apache.hadoop.yarn.server.nodemanager.LinuxContainerExecutor.launchContainer(LinuxContainerExecutor.java:546)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.launchContainer(ContainerLaunch.java:465)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerRelaunch.call(ContainerRelaunch.java:107)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerRelaunch.call(ContainerRelaunch.java:49)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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