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From "Vinod Kumar Vavilapalli (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7206) Integrate Snappy compression
Date Fri, 02 Mar 2012 23:00:54 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vinod Kumar Vavilapalli updated HADOOP-7206:

    Fix Version/s: 0.23.0

Thank for the go signal, Matt. I just committed the back-ported patch to branch-1 and branch-1.0.

Also, we need to set the fix version to be 1.0.2, but I cannot find it in the version list.
I set it to 1.0.1 for now, can you please fix it? Thanks!
> Integrate Snappy compression
> ----------------------------
>                 Key: HADOOP-7206
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7206
>             Project: Hadoop Common
>          Issue Type: New Feature
>    Affects Versions: 0.21.0
>            Reporter: Eli Collins
>            Assignee: Alejandro Abdelnur
>             Fix For: 0.23.0, 1.0.1
>         Attachments: HADOOP-7206-002.patch, HADOOP-7206-20120223.txt, HADOOP-7206-20120302.txt,
HADOOP-7206.patch, HADOOP-7206new-b.patch, HADOOP-7206new-c.patch, HADOOP-7206new.patch, HADOOP-7206revertplusnew-b.patch,
HADOOP-7206revertplusnew.patch, v2-HADOOP-7206-snappy-codec-using-snappy-java.txt, v3-HADOOP-7206-snappy-codec-using-snappy-java.txt,
v4-HADOOP-7206-snappy-codec-using-snappy-java.txt, v5-HADOOP-7206-snappy-codec-using-snappy-java.txt
> Google release Zippy as an open source (APLv2) project called Snappy (http://code.google.com/p/snappy).
This tracks integrating it into Hadoop.
> {quote}
> Snappy is a compression/decompression library. It does not aim for maximum compression,
or compatibility with any other compression library; instead, it aims for very high speeds
and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is
an order of magnitude faster for most inputs, but the resulting compressed files are anywhere
from 20% to 100% bigger. On a single core of a Core i7 processor in 64-bit mode, Snappy compresses
at about 250 MB/sec or more and decompresses at about 500 MB/sec or more.
> {quote}

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