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https://issues.apache.org/jira/browse/HADOOP-5916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12713300#action_12713300
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Hong Tang commented on HADOOP-5916:
-----------------------------------

Conflicting instructions have been provided here:

 
https://issues.apache.org/jira/browse/HADOOP-4677?focusedCommentId=12650526&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12650526
 

Where Chris suggests to use /tmp as default. test.build.data should always be 
set to build/test/data by ant, shouldn't it? 

> Standardize fall-back value of test.build.data for testing directories
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-5916
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5916
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: test
>            Reporter: Jakob Homan
>         Attachments: test.build.data.txt
>
>
> Currently when the test.build.data property is not set, as happens when run 
> through some configurations of Eclipse, the fall-back value varies wildly.  
> Most calls set to /tmp, which is not good as it is beyond the scope of the 
> ant clean task and thus will not be deleted.  Others default to "." which can 
> drop the test files right in the current directory.  Speaking with Konstanin, 
> it seems the correct location should be "build/test/data" to ensure any files 
> that are created are within the scope of Ant's clean command.
> Attached is the current variation in this setting.

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