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From "Prasanth J (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-7250) Adaptive compression buffer size for wide tables in ORC
Date Wed, 18 Jun 2014 01:26:17 GMT
Prasanth J created HIVE-7250:
--------------------------------

             Summary: Adaptive compression buffer size for wide tables in ORC
                 Key: HIVE-7250
                 URL: https://issues.apache.org/jira/browse/HIVE-7250
             Project: Hive
          Issue Type: Improvement
          Components: File Formats
    Affects Versions: 0.14.0
            Reporter: Prasanth J
            Assignee: Prasanth J


If the input table is wide (in the order of 1000s), ORC compression buffer size overhead becomes
significant causing OOM issues. To overcome this issue, buffer size should be adaptively chosen
based on the available memory and the number of columns.



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