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From "Sanjay Radia (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-6484) OSGI headers in jar manifest
Date Thu, 23 Feb 2012 18:50:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13214929#comment-13214929

Sanjay Radia commented on HADOOP-6484:

I am missing the context here. Part of this might be my ignorance about OSGI and Karaf
Can you please create a umbrella jira that describes the benefits of using  OSGI and Karaf
and the scope of the work.  Link all related jiras in this umbrella jira.
 * Benefits and target audience: Is this work targeted for managing/running hadoop for developers
or for production use? Briefly describe the benefits.
 * Besides adding the manifests to jar files will it require adding more invasive changes
such as special interfaces for stopping and starting hadoop daemons? 
 * Will this be used for management after deployment has been done through some other mechanism
or will this work also enable the deployment in a cluster.

> OSGI headers in jar manifest
> ----------------------------
>                 Key: HADOOP-6484
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6484
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>            Reporter: Leen Toelen
>         Attachments: HADOOP-6484.patch
> When using hadoop inside an OSGI environment one needs to change the META-INF/MANIFEST.MF
file to include OSGI headers (version and symbolic name). It would be convenient to do this
in the default build.xml. 
> There are no runtime dependencies.
> An easy way of doing this is to use the bnd ant task: http://www.aqute.biz/Code/Bnd
> <target name="build"> 
>    <taskdef resource="aQute/bnd/ant/taskdef.properties"
>       classpath="bnd.jar"/> 
>    <bnd 
>       classpath="src" 
>       eclipse="true" 
>       failok="false" 
>       exceptions="true" 
>       files="test.bnd"/> 
>  </target>

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