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https://issues.apache.org/jira/browse/ACCUMULO-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13160128#comment-13160128
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Keith Turner commented on ACCUMULO-14:
--------------------------------------

Here are my thoughts on updating vars to final simultaneously w/ this feature.  
 
 * Makes the patch harder to review for this feature.
 * Makes the patch harder to merge to other branches. (For example if I want to 
merge feature X and not Y to an older branch, but the patch contains feature X 
and Y commingled.)
 * Final was only added to the classes changed for this feature.  If you really 
think it is a worthwhile improvement, it may be worth making a large change and 
tacking that in one ticket. 
 * When looking at code for forensics reasons trying to fix a bug, I have found 
in some cases that svn revisions targeted to a specific feature or bug fix are 
helpful when trying to understand why a change was made and what code that 
change affected.

I am actually making a more general argument for keeping patches concise to the 
primary feature being addressed by the patch.
                
> Transition from full Accumulo mocking
> -------------------------------------
>
>                 Key: ACCUMULO-14
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-14
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: client
>            Reporter: Jesse Yates
>             Fix For: 1.5.0
>
>         Attachments: java_ACCUMULO-14-start-formatted.patch, 
> java_ACCUMULO-14-start.patch
>
>
> Original discussion present 
> here:http://mail-archives.apache.org/mod_mbox/incubator-accumulo-dev/201110.mbox/%3CCAGUtCHrN3p-7C8Uz7eT0Ze4L0ORzDj1f-x-JWdyrLc=Kx=o...@mail.gmail.com%3E
> Jesse Yates: "Maintaining a real instance and a mock instance ends up 
> creating a lot of extra work for dev's by ensuring that there impls are kept 
> synchronized....[using a real] instance of Accumulo running on the local file 
> system. This would mean less work in the long run to maintain a separate 
> instance and better testing for users and new features."
> Keith Turner: "its very fast to create a mock instance which means that unit 
> test run very quickly...[and] its all in process which is useful for 
> debugging...making mock leverage more of the actual accumulo code, but 
> possibly keep it in process for speed and debugging."
> This ticket is to track the discussion and development of a less mocked test 
> instance of accumulo, that relies more heavily on the actual implementation, 
> rather than parallel mocking features.

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