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Date: Fri, 8 Dec 2017 07:16:00 +0000 (UTC)
From: "Karan Mehta (JIRA)" <jira@apache.org>
To: dev@phoenix.apache.org
Message-ID: <JIRA.13121119.1511824605000.415859.1512717360142@Atlassian.JIRA>
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Subject: [jira] [Commented] (PHOENIX-4408) Figure out Hadoop version
 compatibility
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archived-at: Fri, 08 Dec 2017 07:16:04 -0000


    [ https://issues.apache.org/jira/browse/PHOENIX-4408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16283147#comment-16283147 ] 

Karan Mehta commented on PHOENIX-4408:
--------------------------------------

PHOENIX-3752 removed the PhoenixMetricsSink. I think further cleanup is required to remove all the classes and complete dependency on MetricsSink.

> Figure out Hadoop version compatibility
> ---------------------------------------
>
>                 Key: PHOENIX-4408
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4408
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: Josh Elser
>            Priority: Blocker
>             Fix For: 5.0.0
>
>
> The 5.x-HBase-2.0 branch is presently incompatible with both Hadoop 2.7 and Hadoop 3.0.
> This stems from PhoenixMetricsSink and LoggingSink both of which extend MetricsSink from Hadoop. Hadoop leaks a commons-configuration class into a method signature and changes the dependency across versions.
> This makes it extremely annoying to work around downstream (we would have to create multiple maven modules to shim around this). We should figure out what compatibility we want to have.  Post PHOENIX-4405, it's only Hadoop3.


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