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https://issues.apache.org/jira/browse/YARN-515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618784#comment-13618784
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Robert Joseph Evans commented on YARN-515:
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Having people always test the patches in secure mode I think is a bit too high
of a barrier for some. I personally hate having to get it all set up to be
able to test a patch. Registration responses in general were broken. The NM
would never get a reboot signal either. It was always the default enum value
of everything is fine. I am just glad that we caught it.
> Node Manager not getting the master key
> ---------------------------------------
>
> Key: YARN-515
> URL: https://issues.apache.org/jira/browse/YARN-515
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.0.4-alpha
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Priority: Blocker
> Fix For: 2.0.5-beta
>
> Attachments: YARN-515.txt
>
>
> On branch-2 the latest version I see the following on a secure cluster.
> {noformat}
> 2013-03-28 19:21:06,243 [main] INFO
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl: Security
> enabled - updating secret keys now
> 2013-03-28 19:21:06,243 [main] INFO
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl: Registered
> with ResourceManager as RM:PORT with total resource of <me
> mory:12288, vCores:16>
> 2013-03-28 19:21:06,244 [main] INFO
> org.apache.hadoop.yarn.service.AbstractService:
> Service:org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl is
> started.
> 2013-03-28 19:21:06,245 [main] INFO
> org.apache.hadoop.yarn.service.AbstractService:
> Service:org.apache.hadoop.yarn.server.nodemanager.NodeManager is started.
> 2013-03-28 19:21:07,257 [Node Status Updater] ERROR
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl: Caught
> exception in status-updater
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.security.BaseContainerTokenSecretManager.getCurrentKey(BaseContainerTokenSecretManager.java:121)
> at
> org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl$1.run(NodeStatusUpdaterImpl.java:407)
> {noformat}
> The Null pointer exception just keeps repeating and all of the nodes end up
> being lost. It looks like it never gets the secret key when it registers.
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