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https://issues.apache.org/jira/browse/HADOOP-15270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16409366#comment-16409366
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Sunil G commented on HADOOP-15270:
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Changes to this issue is is YARN. converting as a YARN ticket.
> yarn rmadmin -getGroups returns group from which the user has been removed
> --------------------------------------------------------------------------
>
> Key: HADOOP-15270
> URL: https://issues.apache.org/jira/browse/HADOOP-15270
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Sumana Sathish
> Assignee: Sunil G
> Priority: Critical
>
> {code:title= adding group hrt_yarn_rmadmin_test}
> sudo su - -c "groupadd hrt_yarn_rmadmin_test" root
> {code}
> {Code:title=adding user hrt_yarn_rmadmin_test to group hrt_yarn_rmadmin_test}
> sudo su - -c "useradd hrt_yarn_rmadmin_test -g hrt_yarn_rmadmin_test" root
> {Code}
> {Code:title= adding group hrt_yarn_rmadmin_test_group2 }
> sudo su - -c "groupadd hrt_yarn_rmadmin_test_group2" root
> {Code}
> {Code:title=adding user hrt_yarn_rmadmin_test to group
> hrt_yarn_rmadmin_test_group2}
> sudo su - -c "usermod -a -G hrt_yarn_rmadmin_test_group2
> hrt_yarn_rmadmin_test" root
> {Code}
> Refresh and getGroups
> {code}
> yarn rmadmin -refreshUserToGroupsMappings
> /usr/hdp/current/hadoop-yarn-client/bin/yarn rmadmin -getGroups
> hrt_yarn_rmadmin_test
> hrt_yarn_rmadmin_test : hrt_yarn_rmadmin_test hrt_yarn_rmadmin_test_group2
> {code}
> Delete group hrt_yarn_rmadmin_test_group2 from user hrt_yarn_rmadmin_test
> and refresh and do getGroups.
> We can still see group hrt_yarn_rmadmin_test_group2
> {code}
> sudo su - -c "gpasswd -d hrt_yarn_rmadmin_test hrt_yarn_rmadmin_test_group2"
> root
> {code}
> Removing user hrt_yarn_rmadmin_test from group hrt_yarn_rmadmin_test_group2
> {code}
> bash-4.2$ /usr/hdp/current/hadoop-yarn-client/bin/yarn rmadmin
> -refreshUserToGroupsMappings
> /usr/hdp/current/hadoop-yarn-client/bin/yarn rmadmin -getGroups
> hrt_yarn_rmadmin_test
> hrt_yarn_rmadmin_test : hrt_yarn_rmadmin_test hrt_yarn_rmadmin_test_group2
> {code}
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