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Posted to dev@hive.apache.org by "Zhichun Wu (JIRA)" <ji...@apache.org> on 2014/04/03 19:25:19 UTC

[jira] [Updated] (HIVE-5067) Add bzip compressor for ORC

     [ https://issues.apache.org/jira/browse/HIVE-5067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhichun Wu updated HIVE-5067:
-----------------------------

    Attachment: HIVE-5067.patch

I would like to test orc + bzip2 for cold data compression and have a quick imp with BZip2Compressor in [apache common compress|http://commons.apache.org/proper/commons-compress/] based on SnappyCodec.java . Right now I just implement the CompressionCodec interface only.

 According to my test, orc + bzip2 doesn't have significant improvement on data compression compared to orc + zlib and it takes more time to complete the compression. Please correct me if I'm wrong.

> Add bzip compressor for ORC
> ---------------------------
>
>                 Key: HIVE-5067
>                 URL: https://issues.apache.org/jira/browse/HIVE-5067
>             Project: Hive
>          Issue Type: Bug
>          Components: File Formats
>            Reporter: Owen O'Malley
>         Attachments: HIVE-5067.patch
>
>
> It would be good to add a bzip compressor for ORC. Bzip does very well for long term/cold storage.



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