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From "Prasad Mujumdar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SENTRY-157) Support filter pushdown in DB Store client to reduce data transfer from DB Store service
Date Tue, 25 Mar 2014 02:38:42 GMT
Prasad Mujumdar created SENTRY-157:
--------------------------------------

             Summary: Support filter pushdown in DB Store client to reduce data transfer from
DB Store service
                 Key: SENTRY-157
                 URL: https://issues.apache.org/jira/browse/SENTRY-157
             Project: Sentry
          Issue Type: Bug
    Affects Versions: 1.4.0
            Reporter: Prasad Mujumdar


The authorization provider retrieves all the privileges for the given set of groups. This
could be a huge data set if there are a large number of privileges in the system. A downstream
consumer like HiveServer2 will be reading this for each query. This could impact the DB store
performance if there are multiple active queries and numerous privilege rules.
We could consider pushing the filters like DB object name to the policy provider to prune
the privilege result set at the source.




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