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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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