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https://issues.apache.org/jira/browse/YARN-1883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13949443#comment-13949443
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Akira AJISAKA commented on YARN-1883:
-------------------------------------
LGTM, +1.
> TestRMAdminService 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
> Labels: java7
> Attachments: YARN-1883.patch, YARN-1883.patch
>
>
> 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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