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From "Raghav Kumar Gautam (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FALCON-587) Don't delete input data in @AfterClass in falcon-regression tests
Date Wed, 27 Aug 2014 19:59:58 GMT

    [ https://issues.apache.org/jira/browse/FALCON-587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14112741#comment-14112741
] 

Raghav Kumar Gautam commented on FALCON-587:
--------------------------------------------

I can give you another counter example for this case:
1. user1 creates feed1 and test data for it in @BeforeClass setup method
2. user2 creates feed2 and test data for it in @BeforeClass setup method
3. user2 uses feed1 and feed2 for testing
4. in the @AfterClass cleanup method cleanup the data
The problem is that we are not sure if test's cleanup method is called first or BaseTestClass's
@AfterClass method called first. These race conditions once introduced are hard to reproduce
and debug. That is why we had decided to stay away from using any After/Before Method/Class
tags in the BaseTestClass. Data creation and cleanup are very test specific and individual
tests should have complete control of them. Last time when we had a similar issue with BaseTestClass.removeBundles()
we instead added a call to the method from all of the tearDown() method of the tests.

> Don't delete input data in @AfterClass in falcon-regression tests
> -----------------------------------------------------------------
>
>                 Key: FALCON-587
>                 URL: https://issues.apache.org/jira/browse/FALCON-587
>             Project: Falcon
>          Issue Type: Bug
>          Components: merlin
>    Affects Versions: 0.5
>            Reporter: Ruslan Ostafiychuk
>            Assignee: Ruslan Ostafiychuk
>            Priority: Minor
>             Fix For: 0.5
>
>         Attachments: FALCON-587.patch, FALCON-587_v2.patch, FALCON-587_v3.patch
>
>
> We can leave input data after tests for debug. Input data will be deleted if we run tests
again in @BeforeMethod (during HadoopUtil.flattenAndPutDataInFolder()).



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