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From "Siying Dong (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-2030) isEmptyPath() to use ContentSummary cache
Date Tue, 08 Mar 2011 01:17:59 GMT
isEmptyPath() to use ContentSummary cache
-----------------------------------------

                 Key: HIVE-2030
                 URL: https://issues.apache.org/jira/browse/HIVE-2030
             Project: Hive
          Issue Type: Improvement
            Reporter: Siying Dong
            Assignee: Siying Dong
            Priority: Minor


addInputPaths() calls isEmptyPath() for every input path. Now every call is a DFS namenode
call. Making isEmptyPath() to use cached ContentSummary, we should be able to avoid some namenode
calls and reduce latency in the case of multiple partitions.

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