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https://issues.apache.org/jira/browse/ACCUMULO-3402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14244605#comment-14244605
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Billie Rinaldi commented on ACCUMULO-3402:
------------------------------------------

I'm also leaning towards a revert at this point.  It's possible introducing a 
mapreduce module would provide the desired benefits after we have a separate 
api module (ACCUMULO-2589), so it may be worthwhile to revisit the idea later.

> Introduction of the mapreduce maven module breaks 1.6 compatibility
> -------------------------------------------------------------------
>
>                 Key: ACCUMULO-3402
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3402
>             Project: Accumulo
>          Issue Type: Bug
>          Components: client
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Blocker
>             Fix For: 1.7.0
>
>
> The introduction of mapreduce maven module breaks backwards compatibility 
> with 1.6.
> Code that previously worked against 1.6 (that used our mapreduce classes) is 
> now broken without a deprecation cycle -- specifically trying to compile Hive 
> against Accumulo 1.7 is broken.
> While the classes themselves haven't technically changed, the required 
> dependencies have. In my eyes, this is an incompatible change that violates 
> our current public API rules.



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