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From "Joydeep Sen Sarma (JIRA)" <>
Subject [jira] Updated: (HIVE-85) separate compression options for different output types
Date Wed, 03 Dec 2008 21:27:44 GMT


Joydeep Sen Sarma updated HIVE-85:

    Attachment:     (was: hive-85.patch.3)

> separate compression options for different output types
> -------------------------------------------------------
>                 Key: HIVE-85
>                 URL:
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Joydeep Sen Sarma
>            Assignee: Joydeep Sen Sarma
>         Attachments: hive-85.patch.1, hive-85.patch.2, lt100.txt.deflate
> currently hive uses mapred.output.compress to determine compression for all output files.
however not all files are final output. at least three different kinds of output files are
> 1. intermediate output files for next map-reduce job
> 2. files targeted for result hdfs directories or hive tables/partitions (which are just
hdfs dirs)
> 3. files written to user local directories (downloading results)
> the plan is to provide three separate options for controlling 1,2,3 separately. we may
want to split (2) in case compression is determined by table metadata (and not session options).

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