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Wangda Tan commented on YARN-2826: ---------------------------------- Verified this patch will not break what we have resolved in YARN-2795, in HA+security cluster, RMs can still start/stop successfully. And also verified user-group mapping can get updated in cluster with this patch. > User-Group mappings not updated by RM when a user is removed from a group. > -------------------------------------------------------------------------- > > Key: YARN-2826 > URL: https://issues.apache.org/jira/browse/YARN-2826 > Project: Hadoop YARN > Issue Type: Bug > Reporter: sidharta seethana > Assignee: Wangda Tan > Priority: Critical > Attachments: YARN-2826-1.patch > > > Removing a user from a group isn't reflected in getGroups even after a > refresh. The following sequence fails in step 7. > 1) add test_user to a machine with group1 > 2) add test_user to group2 on the machine > 3) yarn rmadmin -refreshUserToGroupsMappings (expected to refresh user to > group mappings) > 4) yarn rmadmin -getGroups test_user (and ensure that user is in group2) > 5) remove user from group2 on the machine > 6) yarn rmadmin -refreshUserToGroupsMappings (expected to refresh user to > group mappings) > 7) yarn rmadmin -getGroups test_user (and ensure that user NOT in group2) -- This message was sent by Atlassian JIRA (v6.3.4#6332)