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Date: Wed, 26 Mar 2014 14:13:30 -0400
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Subject: Re: [DISCUSS] MiniAccumuloCluster goals and approach
From: Keith Turner <keith@deenlo.com>
To: Accumulo Dev List <dev@accumulo.apache.org>
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On Wed, Mar 26, 2014 at 2:05 PM, Josh Elser <josh.elser@gmail.com> wrote:

> On 3/26/14, 10:57 AM, Keith Turner wrote:
>
>> Can you give an example of what you are thinking of? I don't understand
>> you
>> viewpoint either
>>
>
> Sure. One limitation of MAC, in general as a testing harness, is that it
> doesn't adequately exercise multi-node implementations. You can run
> multiple tservers, but they are all on the same host which limits the
> validity of a "robust" test. This is my immediate goal.
>
> Multi-node deployments are capable using something like Mesos or Yarn.
> Given that there is already functioning support to deploy Accumulo on Yarn,
> this was my goal.
>
> My goal is to be able to have the ability to run all of our AbstractMacIT
> implementations against "real" hardware without changing a single line of
> test code (ok - maybe a line or two to do injection of the MAC
> implementation). The point is, I believe there could be a huge testing gain
> from being able to write tests which leverage yarn, have the same
> programmatic configuration API from MAC, and provide near "real" Accumulo
> semantics.
>

Ok so you want to MAC to be an interface so that you can provide a
completely different implementation?

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