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https://issues.apache.org/jira/browse/TEZ-1304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14075532#comment-14075532
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Jonathan Eagles commented on TEZ-1304:
--------------------------------------

[~sseth], [~bikassaha], I can see why that may be the best plan. Let me create 
a simple bass class with delegate for YarnClient with only the methods Tez 
needs for now with identical signatures. The will allow for a perfect drop-in 
replacement. I will replace all uses of YarnClient/DAGClient with the delegate. 
Then I will use TEZ-717 to create a local mode implementation.

> Create execution underlying framework abstraction layer
> -------------------------------------------------------
>
>                 Key: TEZ-1304
>                 URL: https://issues.apache.org/jira/browse/TEZ-1304
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Jonathan Eagles
>            Assignee: Jonathan Eagles
>            Priority: Blocker
>         Attachments: TEZ-1304-v1.patch, TEZ-1304-v2.patch
>
>
> Continuing in the direction of hiding the internals of the execution 
> framework, this patch aims at abstracting it away from the tez client 
> implementation. This will further ease the addition of other execution 
> frameworks such as Tez Local Mode.



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