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From "Ravi Mutyala (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12794) Support additional compression levels for GzipCodec
Date Tue, 16 Feb 2016 06:24:18 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ravi Mutyala updated HADOOP-12794:
----------------------------------
    Status: Open  (was: Patch Available)

Cancelling patch because of -1. Will add a new patch 

> Support additional compression levels for GzipCodec
> ---------------------------------------------------
>
>                 Key: HADOOP-12794
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12794
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 2.7.2
>            Reporter: Ravi Mutyala
>            Assignee: Ravi Mutyala
>         Attachments: HADOOP-12794.0001.patch
>
>
> gzip supports compression levels 1-9. Compression level 4 seems to give best compression
per CPU time in some of our tests. Right now ZlibCompressor that is used by GzipCodec only
supports levels 1,9 and six (default). 
> Adding all the compression levels that are supported by native ZlibCompressor
> can provide more options to tweak compression levels. 



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