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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8722) -Dbundle.snappy doesn't work unless -Dsnappy.lib is set
Date Thu, 23 Aug 2012 07:15:42 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13440096#comment-13440096

Colin Patrick McCabe commented on HADOOP-8722:

Looking at our code again, I think it requires the library to be dynamic, so I can just skip
the {{.a}} stuff.  We use {{dlopen}}, and I don't think that works with {{.a}} (static) libraries.

At that point, there no danger of making two copies of the {{.so}} file, since the second
copy would overwrite the first.  If the developer puts two different copies of libsnappy.so
in {{$\{snappy.lib\}}} or {{$\{snappy.prefix\}}}, I think we can safely discount that as user
> -Dbundle.snappy doesn't work unless -Dsnappy.lib is set
> -------------------------------------------------------
>                 Key: HADOOP-8722
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8722
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 2.2.0-alpha
>            Reporter: Eli Collins
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HADOOP-8722.002.patch
> HADOOP-8620 changed the default of snappy.lib from snappy.prefix/lib to empty.  This,
in turn, means that you can't use {{-Dbundle.snappy}} without setting {{-Dsnappy.lib}}

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