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Date: Fri, 26 Jul 2013 15:41:48 +0000 (UTC)
From: "Suneel Marthi (JIRA)" <jira@apache.org>
To: dev@mahout.apache.org
Message-ID: <JIRA.12657412.1373614326323.119426.1374853308984@arcas>
In-Reply-To: <JIRA.12657412.1373614326323@arcas>
References: <JIRA.12657412.1373614326323@arcas>
Subject: [jira] [Commented] (MAHOUT-1284) DummyRecordWriter's bug with
 reused Writables
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    [ https://issues.apache.org/jira/browse/MAHOUT-1284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13720894#comment-13720894 ] 

Suneel Marthi commented on MAHOUT-1284:
---------------------------------------

Thanks for the patch Maysam, will look into this and commit the same.
                
> DummyRecordWriter's bug with reused Writables
> ---------------------------------------------
>
>                 Key: MAHOUT-1284
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1284
>             Project: Mahout
>          Issue Type: Bug
>    Affects Versions: 0.7, 0.8
>            Reporter: Maysam Yabandeh
>            Assignee: Suneel Marthi
>            Priority: Minor
>              Labels: test
>             Fix For: 0.9
>
>         Attachments: MAHOUT-1284.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> It is a recommended practice to reuse the Writable objects. DummyRecordWriter, which is used for testing in Mahout, however keeps the same Writable instance in a map: next time that the user reuses the Writable object, the internal map of DummyRecordWriter changes as well. This makes DummyRecordWriter fail for testing the MapReduce jobs that reuse the Writables.

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