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https://issues.apache.org/jira/browse/HADOOP-15387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16755284#comment-16755284
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Sean Busbey edited comment on HADOOP-15387 at 1/29/19 6:55 PM:
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[~ste...@apache.org] can you help me on understanding scope here a bit?

I think what the description says is we end up with a single jar where all 
classes are in {{org.apache.hadoop}} or {{software.amazon.awssdk}} (or whatever 
their package space is) and we rely on shading to relocate any others (modulo 
the normal caveats on logging / tracing libraries that came up during the 
hadoop-client modules).

Does it need to be all of the Amazon AWS SDK? Is there some interface jar that 
we could use while allowing BYO-SDK? Or for that matter could we just update 
the various cloud storage modules to individually relocate things that aren't 
either hadoop-client-facing or their respective service's SDK?


was (Author: busbey):
[~ste...@apache.org] can you help me on understanding scope here a bit?

I think what the description says is we end up with a single jar where all 
classes are in {{org.apache.hadoop}} or {{software.amazon.awssdk}} and we rely 
on shading to relocate any others (modulo the normal caveats on logging / 
tracing libraries that came up during the hadoop-client modules).

Does it need to be all of the Amazon AWS SDK? Is there some interface jar that 
we could use while allowing BYO-SDK? Or for that matter could we just update 
the various cloud storage modules to individually relocate things that aren't 
either hadoop-client-facing or their respective service's SDK?

> Produce a shaded hadoop-cloud-storage JAR for applications to use
> -----------------------------------------------------------------
>
>                 Key: HADOOP-15387
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15387
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs/adl, fs/azure, fs/oss, fs/s3, fs/swift
>    Affects Versions: 3.1.0
>            Reporter: Steve Loughran
>            Priority: Major
>
> Produce a maven-shaded hadoop-cloudstorage JAR for dowstream use so that
>  * Hadoop dependency choices don't control their decisions
>  * Little/No risk of their JAR changes breaking Hadoop bits they depend on
> This JAR would pull in the shaded hadoop-client JAR, and the aws-sdk-bundle 
> JAR, neither of which would be unshaded (so yes, upgrading aws-sdks would be 
> a bit risky, but double shading a pre-shaded 30MB JAR is excessive on 
> multiple levels.
> Metrics of success: Spark, Tez, Flink etc can pick up and use, and all are 
> happy



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