[jira] [Updated] (YARN-4350) TestDistributedShell fails

["Naganarasimha G R (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-4350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Naganarasimha G R updated YARN-4350:
------------------------------------
    Attachment: YARN-4350-feature-YARN-2928.008.patch

Hi [~sjlee0],
I have given my analysis for this issue in the [comment|https://issues.apache.org/jira/browse/YARN-2859?focusedCommentId=15005746&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15005746] of YARN-2859 patch.
To just check whether my intended approach fixes the issue i am uploading a patch, if possible please try,
Actually i had earlier too faced this race condition but it happening too irregularly and earlier in some other jira too had mention about this but was waiting for YARN-3127 to be verified. If so later to it we need to make this fix. as it has other impacts as mentioned in YARN-3127.

> TestDistributedShell fails
> --------------------------
>
>                 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-2928.008.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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