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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-4252) Detect/Fail tests when they leak RAM in static fields
Date Wed, 25 Jul 2012 12:51:34 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Muir updated LUCENE-4252:
--------------------------------

    Attachment: LUCENE-4252.patch

heres the update patch, it just doesnt do the part before, and looks at the static fields
at the end.

we dont care how they were initialized, we dont want them hogging up RAM!
                
> Detect/Fail tests when they leak RAM in static fields
> -----------------------------------------------------
>
>                 Key: LUCENE-4252
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4252
>             Project: Lucene - Core
>          Issue Type: Test
>          Components: general/test
>            Reporter: Robert Muir
>         Attachments: LUCENE-4252.patch, LUCENE-4252.patch
>
>
> We run our junit tests without firing up a JVM each time.
> But some tests initialize lots of stuff in @BeforeClass and don't properly null it out
in an @AfterClass, which can cause a subsequent test in the same JVM to OOM, which is difficult
to debug.
> Inspiration for this was me committing Mike's cool TestPostingsFormat, which forgot to
do this: then we were seeing OOMs in several jenkins runs.
> We should try to detect these leaks in LuceneTestCase with RAMUsageEstimator and fail
the test.

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