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Posted to common-dev@hadoop.apache.org by "Ahmed Hussein (Jira)" <ji...@apache.org> on 2021/01/20 20:13:00 UTC

[jira] [Created] (HADOOP-17481) Groups user mapping based on Netgroup do not auto-refresh

Ahmed Hussein created HADOOP-17481:
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             Summary: Groups user mapping based on Netgroup do not auto-refresh 
                 Key: HADOOP-17481
                 URL: https://issues.apache.org/jira/browse/HADOOP-17481
             Project: Hadoop Common
          Issue Type: Bug
          Components: security
            Reporter: Ahmed Hussein
            Assignee: Ahmed Hussein


It was noticed that a manual refresh ({{yarn rmadmin -refreshUserToGroupsMappings}}) is required for services to pick a user-group membership.
The auto-refresh of the {{Groups.caching}} only works for the upper layer and won't fetch the groups from the system.

There is a need to automatically reload all the groups (currently in {{NetgroupCache}}). The interval can be a new configuration, with a default value of 6 hours.




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