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https://issues.apache.org/jira/browse/YARN-6150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16051151#comment-16051151
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Ray Chiang commented on YARN-6150:
----------------------------------
Just as an FYI, I'm seeing this fail with regularity on OS X and Linux in trunk
with the error:
{quote}
java.lang.NullPointerException: null
at
org.apache.hadoop.yarn.server.TestContainerManagerSecurity.waitForContainerToFinishOnNM(TestContainerManagerSecurity.java:398)
at
org.apache.hadoop.yarn.server.TestContainerManagerSecurity.testNMTokens(TestContainerManagerSecurity.java:341)
at
org.apache.hadoop.yarn.server.TestContainerManagerSecurity.testContainerManager(TestContainerManagerSecurity.java:158)
{quote}
With this patch, I no longer see the error on either platform.
> TestContainerManagerSecurity tests for Yarn Server are flakey
> -------------------------------------------------------------
>
> Key: YARN-6150
> URL: https://issues.apache.org/jira/browse/YARN-6150
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Daniel Sturman
> Assignee: Daniel Sturman
> Attachments: YARN-6150.001.patch, YARN-6150.002.patch,
> YARN-6150.003.patch, YARN-6150.004.patch, YARN-6150.005.patch,
> YARN-6150.006.patch
>
>
> Repeated runs of
> {{org.apache.hadoop.yarn.server.TestContainerManagedSecurity}} can either
> pass or fail on repeated runs on the same codebase. Also, the two runs (one
> in secure mode, one without security) aren't well labeled in JUnit.
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