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From "issei yoshida (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7206) Integrate Snappy compression
Date Tue, 17 May 2011 06:23:49 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034599#comment-13034599
] 

issei yoshida commented on HADOOP-7206:
---------------------------------------

As a result of talking with Alejandro and Tom, 
we agree that we'll give up the integration into Hadoop core and cancel Hadoop-7206,
because to avoid confusion with users/developers, the code should be in one place either a
separate project or integrated into hadoop core.
The hadoop-snappy as an independent project have the flexibility of doing releases and bug
fixes independent of Hadoop releases,
so I think I'll continue to develop hadoop-snappy only.

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
>         Attachments: HADOOP-7206.patch
>
>
> 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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