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Date: Mon, 6 May 2013 15:10:16 +0000 (UTC)
From: "Keith Turner (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (ACCUMULO-1378) Allow MiniAccumulo cluster
 configured directory to be used across different runs
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    [ https://issues.apache.org/jira/browse/ACCUMULO-1378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13649790#comment-13649790 ] 

Keith Turner commented on ACCUMULO-1378:
----------------------------------------

One purpose of MAC is to replace MockAccumulo for use in unit testing.   However, its a lot slower than mock even though its behavior is much more accurate.  A possible future goal for MAC would be to speed it up so that unit test run faster.  However making MAC highly configurable (and exposing its implementation) would give us less room to manuver when trying to speed it up.  I am thinking if we expose as little as possible in the MAC public API it will give us a lot of flexibiltiy in the future to drastically change its implementation.   Maybe it would be better to create something else for the purpose of this ticket, that is similar to MAC.  Something like SingleNodeAccumulo.java, that is configurable and the user can make a lot more assumptions about.  

This makes me think we may want to examine the 1.4 and 1.5 APIs of MAC and see if they can be simplified.  But I am still thinking about this.  Making MAC faster in 1.6 would be really nice.


> Allow MiniAccumulo cluster configured directory to be used across different runs
> --------------------------------------------------------------------------------
>
>                 Key: ACCUMULO-1378
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1378
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Corey J. Nolet
>            Assignee: Corey J. Nolet
>            Priority: Minor
>
> Currently, the MiniAccumuloCluster assumes it should always create the directory structure and throws an exception if the passed in directory has anything in it.

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