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From "Ashutosh Chauhan (JIRA)" <>
Subject [jira] [Updated] (HIVE-4248) Implement a memory manager for ORC
Date Sat, 20 Apr 2013 23:07:16 GMT


Ashutosh Chauhan updated HIVE-4248:

       Resolution: Fixed
    Fix Version/s: 0.12.0
           Status: Resolved  (was: Patch Available)

Committed to trunk. Thanks, Owen!
> Implement a memory manager for ORC
> ----------------------------------
>                 Key: HIVE-4248
>                 URL:
>             Project: Hive
>          Issue Type: New Feature
>          Components: Serializers/Deserializers
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 0.12.0
>         Attachments: HIVE-4248.D9993.1.patch, HIVE-4248.D9993.2.patch, HIVE-4248.D9993.4.patch
> 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

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