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From "Dawid Weiss (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (MAHOUT-1345) Enable randomised testing for all Mahout modules
Date Sun, 24 Nov 2013 20:43:36 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13831047#comment-13831047
] 

Dawid Weiss edited comment on MAHOUT-1345 at 11/24/13 8:43 PM:
---------------------------------------------------------------

I've no idea -- it's been a long time since I worked with Hadoop. I'm pretty sure it should
have an API to shut it down though? Anyway, if nothing else works you can also disable thread
leak checking for a class or test.
{code}
@ThreadLeakScope(Scope.NONE)
{code}


was (Author: dweiss):
I've no idea -- it's been a long time since I worked with Hadoop. I'm pretty sure it should
have an API to shut it down though? Anyway, if nothing else works you can also disable thread
leak checking for a class or test.
{code}
@@ThreadLeakScope(Scope.NONE)
{code}

> Enable randomised testing for all Mahout modules
> ------------------------------------------------
>
>                 Key: MAHOUT-1345
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1345
>             Project: Mahout
>          Issue Type: Improvement
>    Affects Versions: 0.8
>            Reporter: Isabel Drost-Fromm
>            Priority: Minor
>             Fix For: 0.9
>
>         Attachments: MAHOUT-1345.diff, MAHOUT-1345.patch
>
>
> When enabling randomised testing for all modules I found a few tests became unstable
or even fail deterministically due to lingering threads. The attached patch:
> * defines the randomised testing dependency in our parent pom
> * re-uses said dependencies in all depending modules (makes upgrading easier as the version
number needs to be changed in just one place)
> * adds several code changes that fixed the failures due to lingering threads for me on
my machine. I'd greatly appreciate input a) from those who wrote the respective code and b)
others who ran the tests with these changes to make sure there are no other tests that suffer
from the same issues. 
> Warning: I touched quite a few bits and pieces I'm not intimately familiar with over
the last few weeks  (whenever I had a few spare minutes) - second pair of eyes needed.



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