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https://issues.apache.org/jira/browse/RANGER-1211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15781352#comment-15781352
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Balaji Ganesan commented on RANGER-1211:
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Hi [~spolavarapu] thanks for putting together the design. Can you help me the
following questions?
1. Is there an existing example of any other applications, within Hadoop
ecosystem or outside, doing incremental update?
2. If yes to above question, can you provide an example of how these
applications do this? Does their design differ from what you are proposing?
> Improve Ranger Usersync to sync AD/LDAP users and/or groups incrementally.
> ---------------------------------------------------------------------------
>
> Key: RANGER-1211
> URL: https://issues.apache.org/jira/browse/RANGER-1211
> Project: Ranger
> Issue Type: Improvement
> Components: usersync
> Affects Versions: 0.6.1, 0.6.2
> Reporter: Sailaja Polavarapu
> Assignee: Sailaja Polavarapu
> Labels: ranger
> Fix For: 0.7.0
>
> Attachments:
> 0001-RANGER-1211-Support-incremental-Delta-Sync-with-AD-L.patch,
> DeltaSyncsupportforRangerUsersync.docx
>
>
> During every sync cycle, Ranger Usersync performs full LDAP/AD sync and
> computes the delta in-memory and updates ranger admin. Since usersync
> computes the delta (including group memberships) of all the users that are
> sync’d in memory for every sync cycle, UserSync can take a lot of resources
> on the server it is running on.
> Enhance usersync to perform full sync only during startup and incremental or
> delta sync for the subsequent sync cycles. This way the delta computation of
> group memberships can be highly reduced and can increase usersync
> performance.
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