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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-3950) Remove code for merging files via MR job
Date Wed, 30 Jan 2013 01:41:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3950?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ashutosh Chauhan updated HIVE-3950:
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.11.0
           Status: Resolved  (was: Patch Available)

Committed to trunk. Thanks Namit for review!
                
> Remove code for merging files via MR job
> ----------------------------------------
>
>                 Key: HIVE-3950
>                 URL: https://issues.apache.org/jira/browse/HIVE-3950
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>             Fix For: 0.11.0
>
>         Attachments: hive-3950_1.patch, hive-3950_2.patch, hive-3950.patch
>
>
> Hive can merge files either via MR job or via map only job. Obviously, doing it via map-only
job is more efficient, but there is an option of doing it via MR job as well because CombineFileInputFormat
is available only in hadoop-0.20 and later. Since, we no longer support hadoop versions earlier
than 20 anymore all that is now dead code, we should get rid of it.

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