[jira] [Created] (YARN-1883) TetsRMAdminService fails due to inconsistent entries in UserGroups

["Mit Desai (JIRA)" <ji...@apache.org>]

Mit Desai created YARN-1883:
-------------------------------

             Summary: TetsRMAdminService fails due to inconsistent entries in UserGroups
                 Key: YARN-1883
                 URL: https://issues.apache.org/jira/browse/YARN-1883
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 3.0.0, 2.4.0
            Reporter: Mit Desai
            Assignee: Mit Desai


testRefreshUserToGroupsMappingsWithFileSystemBasedConfigurationProvider fails with the following error:
{noformat}
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.TestRMAdminService.testRefreshUserToGroupsMappingsWithFileSystemBasedConfigurationProvider(TestRMAdminService.java:421)
	at org.apache.hadoop.yarn.server.resourcemanager.TestRMAdminService.testOrder(TestRMAdminService.java:104)
{noformat}

Line Numbers will be inconsistent as I was testing to run it in a particular order. But the Line on which the failure occurs is
{code}
Assert.assertTrue(groupBefore.contains("test_group_A")
        && groupBefore.contains("test_group_B")
        && groupBefore.contains("test_group_C") && groupBefore.size() == 3);
{code}

testRMInitialsWithFileSystemBasedConfigurationProvider() and
testRefreshUserToGroupsMappingsWithFileSystemBasedConfigurationProvider()
calls the function {{MockUnixGroupsMapping.updateGroups();}} which changes the list of userGroups.

testRefreshUserToGroupsMappingsWithFileSystemBasedConfigurationProvider() tries to verify the groups before changing it and fails if testRMInitialsWithFileSystemBasedConfigurationProvider() already ran and made the changes.



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