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Posted to dev@ranger.apache.org by "Hajime Osako (JIRA)" <ji...@apache.org> on 2018/04/29 23:22:00 UTC

[jira] [Created] (RANGER-2088) If not deltasync (Incremental Sync) enabled, getUsers is called too many times

Hajime Osako created RANGER-2088:
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             Summary: If not deltasync (Incremental Sync) enabled, getUsers is called too many times
                 Key: RANGER-2088
                 URL: https://issues.apache.org/jira/browse/RANGER-2088
             Project: Ranger
          Issue Type: Bug
          Components: usersync
    Affects Versions: 0.7.0
            Reporter: Hajime Osako


*SYMPTOM*
With LDAP server which has hundreds of users and groups, Ranger Usersync never finishes the initial sync or takes extremely long time, when Group Search First & Enable User Search both are set to true.
The usersync.log shows similar to below repeatedly.
{noformat}
19 Apr 2018 17:15:19 INFO LdapUserGroupBuilder [UnixUserSyncThread] - Updating username for cn=xxxxx...
{noformat}
 

*WORKAROUND:*
If deltasync (Incremental Sync) is enabled, do not see this symptom, because LdapUserGroupBuilder calls getUsers() in the for loop, but LdapDeltaUserGroupBuilder doesn't in updateSink().

 



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