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https://issues.apache.org/jira/browse/HADOOP-12616?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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KWON BYUNGCHANG reassigned HADOOP-12616:
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Assignee: KWON BYUNGCHANG
> When rmadmin/dfsadmin -refreshUserToGroupsMappings, it does not reload
> hadoop.user.group.static.mapping.overrides config.
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-12616
> URL: https://issues.apache.org/jira/browse/HADOOP-12616
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 2.7.1
> Reporter: KWON BYUNGCHANG
> Assignee: KWON BYUNGCHANG
> Priority: Minor
> Attachments: HADOOP-12616.001.patch, HADOOP-12616.002.patch,
> HADOOP-12616.003.patch, HADOOP-12616.004.patch
>
>
> My environment does not allow add user/group. I can't rely os user/group
> mechanism.
> and I don’t want to show below log.
> {code}
> 2015-11-26 13:21:48,486 WARN security.UserGroupInformation
> (UserGroupInformation.java:getGroupNames(1521)) - No groups available for
> user hello
> {code}
> I append {{org.apache.hadoop.security.SimpleUserGroupsMapping}}.
> It is very simple. group of some user is user. user and group are same.
> if some users should be another group that is different with user name, use
> {{hadoop.user.group.static.mapping.overrides=user1=group;user2=group}}
> problem is when {{hdfs dfsadmin -refreshUserToGroupsMappings}} , {{yarn
> rmadmin -refreshUserToGroupsMappings}}, it does not reload that config.
> Thank you.
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