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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-4022) Replace colt dependency (LGPL) with commons-math
Date Tue, 21 Oct 2014 01:22:34 GMT

    [ https://issues.apache.org/jira/browse/SPARK-4022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14177776#comment-14177776
] 

Sean Owen commented on SPARK-4022:
----------------------------------

Ah right there is Jet too, not just Colt.

The LGPL license actually only pertains to a few parts of Colt, in hep.aida.*, which aren't
used by Spark.
Another solution is just to make sure these classes never become part of the distribution.
Colt and Jet themselves don't appear to be LGPL, in the main.

Of course, if there was a desire to just stop using Colt+Jet anyway, I'm cool with that too.

> Replace colt dependency (LGPL) with commons-math
> ------------------------------------------------
>
>                 Key: SPARK-4022
>                 URL: https://issues.apache.org/jira/browse/SPARK-4022
>             Project: Spark
>          Issue Type: Bug
>          Components: MLlib, Spark Core
>            Reporter: Patrick Wendell
>            Assignee: Sean Owen
>            Priority: Critical
>
> The colt library we use is LGPL-licensed:
> http://acs.lbl.gov/ACSSoftware/colt/license.html
> We need to swap this out for commons-math. It is also a very old library that hasn't
been updated since 2004.



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