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https://issues.apache.org/jira/browse/MAPREDUCE-3872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated MAPREDUCE-3872:
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Attachment: MAPREDUCE-3872.2.patch
+1 for the patch.
I'm attaching a slightly rebased version of the same code just so the patch
applies cleanly to current trunk. The race condition around {{allHosts}}
happens pretty easily on Windows and causes frequent failures in
{{TestContainerLauncher}}. I confirmed that this patch fixes the failures on
Windows and also works on Mac.
> event handling races in ContainerLauncherImpl and TestContainerLauncher
> -----------------------------------------------------------------------
>
> Key: MAPREDUCE-3872
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3872
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client, mrv2
> Affects Versions: 0.23.1
> Reporter: Patrick Hunt
> Assignee: Robert Kanter
> Attachments: MAPREDUCE-3872.2.patch, MAPREDUCE-3872.patch,
> MAPREDUCE-3872.patch, MAPREDUCE-3872.patch
>
>
> TestContainerLauncher is failing intermittently for me.
> {noformat}
> junit.framework.AssertionFailedError: Expected: <null> but was: Expected 22
> but found 21
> at junit.framework.Assert.fail(Assert.java:47)
> at junit.framework.Assert.assertTrue(Assert.java:20)
> at junit.framework.Assert.assertNull(Assert.java:233)
> at junit.framework.Assert.assertNull(Assert.java:226)
> at
> org.apache.hadoop.mapreduce.v2.app.launcher.TestContainerLauncher.testPoolSize(TestContainerLauncher.java:117)
> {noformat}
> Patch momentarily.
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