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From "Greg Roelofs (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6837) Support for LZMA compression
Date Wed, 23 Jun 2010 22:33:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12881928#action_12881928
] 

Greg Roelofs commented on HADOOP-6837:
--------------------------------------

7-Zip is LGPL; the LZMA SDK is not:

"License

LZMA SDK is placed in the public domain."

Given that both packages are hosted at the same site, with links to each other on the left
bar, I think we can safely assume they know the difference between the two and have made a
conscious decision to release them accordingly.

> Support for LZMA compression
> ----------------------------
>
>                 Key: HADOOP-6837
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6837
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>            Reporter: Nicholas Carlini
>            Assignee: Nicholas Carlini
>         Attachments: HADOOP-6837-lzma-java-20100623.patch
>
>
> Add support for LZMA (http://www.7-zip.org/sdk.html) compression, which generally achieves
higher compression ratios than both gzip and bzip2.

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