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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7206) Integrate Snappy compression
Date Thu, 16 Jun 2011 00:51:49 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13050167#comment-13050167

Alejandro Abdelnur commented on HADOOP-7206:

The test is failing because snappy SO is not installed/available in the build machine.

Options that I see for this are:

1* Install snappy in build machines
2* Drag into hadoop native code snappy code 

While #2 is simpler it means we are forking snappy for Hadoop usage. We could do this until
snappy is available as a package (RPM/DEB).


> 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: issei yoshida
>         Attachments: HADOOP-7206-002.patch, 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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