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From Josh Elser <>
Subject Re: [DISCUSS] dropping hadoop 2 support
Date Tue, 27 Feb 2018 15:52:41 GMT

AFAIK, this wouldn't have to be anything more than build changes. 
"Dropping hadoop2 support" wouldn't need to include any other changes 
(as adding H3 support didn't require any Java changes). Getting in front 
of the ball to help push people towards newer versions would be a 
welcome change.

On 2/27/18 10:42 AM, Sean Busbey wrote:
> Let's get the discussion started early on when we'll drop hadoop 2 support.
> As of ACCUMULO-4826 we are poised to have Hadoop 2 and Hadoop 3 supported in 1.y releases
as of 1.9.0. That gives an upgrade path so that folks won't have to upgrade both Hadoop and
Accumulo at the same time.
> How about Accumulo 2.0.0 requires Hadoop 3?
> If there's a compelling reason for our users to stay on Hadoop 2.y releases, we can keep
making Accumulo 1.y releases. Due to the shift away from maintenance releases in Hadoop we'll
need to get more aggressive in adopting minor releases.

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