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Posted to dev@hive.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2013/03/28 22:47:15 UTC

[jira] [Created] (HIVE-4248) Implement a memory manager for ORC

Owen O'Malley created HIVE-4248:
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             Summary: Implement a memory manager for ORC
                 Key: HIVE-4248
                 URL: https://issues.apache.org/jira/browse/HIVE-4248
             Project: Hive
          Issue Type: New Feature
          Components: Serializers/Deserializers
            Reporter: Owen O'Malley
            Assignee: Owen O'Malley


With the large default stripe size (256MB) and dynamic partitions, it is quite easy for users to run out of memory when writing ORC files. We probably need a solution that keeps track of the total number of concurrent ORC writers and divides the available heap space between them. 

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