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https://issues.apache.org/jira/browse/YARN-4350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15064457#comment-15064457
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Sangjin Lee commented on YARN-4350:
-----------------------------------
Thanks for digging deep into this [~Naganarasimha]. There might be a little
bigger issue with the non-test code then, and it might be not limited to our
branch.
I'm OK with fixing the issues that are specific to our branch here, and handle
the bigger issue in a trunk JIRA (YARN-4385?). Thoughts?
> TestDistributedShell fails for V2 scenarios
> -------------------------------------------
>
> Key: YARN-4350
> URL: https://issues.apache.org/jira/browse/YARN-4350
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Sangjin Lee
> Assignee: Naganarasimha G R
> Attachments: YARN-4350-feature-YARN-2928.001.patch,
> YARN-4350-feature-YARN-2928.002.patch, YARN-4350-feature-YARN-2928.003.patch
>
>
> Currently TestDistributedShell does not pass on the feature-YARN-2928 branch.
> There seem to be 2 distinct issues.
> (1) testDSShellWithoutDomainV2* tests fail sporadically
> These test fail more often than not if tested by themselves:
> {noformat}
> testDSShellWithoutDomainV2DefaultFlow(org.apache.hadoop.yarn.applications.distributedshell.TestDistributedShell)
> Time elapsed: 30.998 sec <<< FAILURE!
> java.lang.AssertionError: Application created event should be published
> atleast once expected:<1> but was:<0>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at
> org.apache.hadoop.yarn.applications.distributedshell.TestDistributedShell.checkTimelineV2(TestDistributedShell.java:451)
> at
> org.apache.hadoop.yarn.applications.distributedshell.TestDistributedShell.testDSShell(TestDistributedShell.java:326)
> at
> org.apache.hadoop.yarn.applications.distributedshell.TestDistributedShell.testDSShellWithoutDomainV2DefaultFlow(TestDistributedShell.java:207)
> {noformat}
> They start happening after YARN-4129. I suspect this might have to do with
> some timing issue.
> (2) the whole test times out
> If you run the whole TestDistributedShell test, it times out without fail.
> This may or may not have to do with the port change introduced by YARN-2859
> (just a hunch).
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