[jira] [Commented] (YARN-1947) TestRMDelegationTokens#testRMDTMasterKeyStateOnRollingMasterKey is failing intermittently

[Junping Du (JIRA)]

    [ 
https://issues.apache.org/jira/browse/YARN-1947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13972163#comment-13972163
 ] 

Junping Du commented on YARN-1947:
----------------------------------

Thanks for the patch, Jian! A few comments below:
{code}
+    int count = 0;
+    while (rmDTState.containsKey(dtId1) && count < 100) {
+      Thread.sleep(100);
     }
{code}
shouldn't be adding "count++" somewhere?

> TestRMDelegationTokens#testRMDTMasterKeyStateOnRollingMasterKey is failing 
> intermittently
> -----------------------------------------------------------------------------------------
>
>                 Key: YARN-1947
>                 URL: https://issues.apache.org/jira/browse/YARN-1947
>             Project: Hadoop YARN
>          Issue Type: Test
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-1947.1.patch
>
>
> java.lang.AssertionError: null
>       at org.junit.Assert.fail(Assert.java:92)
>       at org.junit.Assert.assertTrue(Assert.java:43)
>       at org.junit.Assert.assertTrue(Assert.java:54)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.security.TestRMDelegationTokens.testRMDTMasterKeyStateOnRollingMasterKey(TestRMDelegationTokens.java:117)



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