[jira] Commented: (PIG-1391) pig unit tests leave behind files in temp directory because MiniCluster files don't get deleted

["V.V.Chaitanya Krishna (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-1391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12860717#action_12860717 ] 

V.V.Chaitanya Krishna commented on PIG-1391:
--------------------------------------------

bq. 2. Annotate the class with @RunWith(JUnit4.class) so that junit4 is used . Without that it will run in junit3.x mode, which ignores @AfterClass annotation.

Since ivy cache currently gets junit-4.5.jar, the tests run with junit4 mode, no?

> pig unit tests leave behind files in temp directory because MiniCluster files don't get deleted
> -----------------------------------------------------------------------------------------------
>
>                 Key: PIG-1391
>                 URL: https://issues.apache.org/jira/browse/PIG-1391
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Thejas M Nair
>            Assignee: Thejas M Nair
>             Fix For: 0.7.0
>
>         Attachments: minicluster.patch
>
>
> Pig unit test runs leave behind files in temp dir (/tmp) and there are too many files in the directory over time.
> Most of the files are left behind by MiniCluster . It closes/shutsdown MiniDFSCluster, MiniMRCluster and the FileSystem that it has created when the constructor is called, only in finalize(). And java does not guarantee that finalize() will be called. 

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