[jira] [Updated] (YARN-4686) MiniYARNCluster.start() returns before cluster is completely started

["Eric Badger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Badger updated YARN-4686:
------------------------------
    Attachment: YARN-4686.002.patch

This patch fixes a race issue between the NMs resyncing with the RM and the NMs stopping via serviceStop. 

> MiniYARNCluster.start() returns before cluster is completely started
> --------------------------------------------------------------------
>
>                 Key: YARN-4686
>                 URL: https://issues.apache.org/jira/browse/YARN-4686
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: test
>            Reporter: Rohith Sharma K S
>            Assignee: Eric Badger
>         Attachments: MAPREDUCE-6507.001.patch, YARN-4686.001.patch, YARN-4686.002.patch
>
>
> TestRMNMInfo fails intermittently. Below is trace for the failure
> {noformat}
> testRMNMInfo(org.apache.hadoop.mapreduce.v2.TestRMNMInfo)  Time elapsed: 0.28 sec  <<< FAILURE!
> java.lang.AssertionError: Unexpected number of live nodes: expected:<4> but was:<3>
> 	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.mapreduce.v2.TestRMNMInfo.testRMNMInfo(TestRMNMInfo.java:111)
> {noformat}



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