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https://issues.apache.org/jira/browse/HDDS-2121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16930483#comment-16930483
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Elek, Marton commented on HDDS-2121:
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After HDDS-2120 we have only a limited number of 3rd party dependencies. I am 
not sure if this shading is required as we need to exclude many libraries from 
the shading.

I uploaded a patch where only the following libraries are shaded:

 * guava
 * distruptor
 * codehale metrics
 * picocli
 * netty

apache commons + protobuf are excluded.

The patch requires HDDS-2120. In the PR, both the commits are included.

> Create a shaded ozone filesystem (client) jar
> ---------------------------------------------
>
>                 Key: HDDS-2121
>                 URL: https://issues.apache.org/jira/browse/HDDS-2121
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>          Components: build
>            Reporter: Arpit Agarwal
>            Assignee: Elek, Marton
>            Priority: Blocker
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> We need a shaded Ozonefs jar that does not include Hadoop ecosystem 
> components (Hadoop, HDFS, Ratis, Zookeeper).
> A common expected use case for Ozone is Hadoop clients (3.2.0 and later) 
> wanting to access Ozone via the Ozone Filesystem interface. For these 
> clients, we want to add Ozone file system jar to the classpath, however we 
> want to use Hadoop ecosystem dependencies that are `provided` and already 
> expected to be in the client classpath.
> Note that this is different from the legacy jar which bundles a shaded Hadoop 
> 3.2.0.



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