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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5288) running multiple suites.All concurrently should be possible
Date Thu, 23 Jun 2011 23:12:47 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13054166#comment-13054166

Knut Anders Hatlen commented on DERBY-5288:

FWIW, I've never been able to run suites.All on jdk16 with default memory settings without
getting the PermGen space error you saw, even when not running concurrent tests (default PermGen
size is 64MB, I run with 256MB).

Another thing to take into consideration is that some of the tests fork a new JVM for the
network server, so you may get into the situation where your 8 test runs have 16 processes
running at the same time (if all happen to be in such a test at the same time). Then you'd
only have ~240 MB per process, which in my experience is too little for suites.All. When I
run concurrent tests, I typically split up suites.All in smaller test suites (jdbcapi._Suite,
lang._Suite, etc...) and run them individually so that each process doesn't grow too big.

> running multiple suites.All concurrently should be possible
> -----------------------------------------------------------
>                 Key: DERBY-5288
>                 URL: https://issues.apache.org/jira/browse/DERBY-5288
>             Project: Derby
>          Issue Type: Bug
>          Components: Test
>    Affects Versions:,,,
>            Reporter: Myrna van Lunteren
>            Assignee: Myrna van Lunteren
>         Attachments: DERBY-5288_1.diff, join-threads.diff
> When attempting to run multiple suites.All runs at the same time, using a different location
& jvm & a different value for
> -Dderby.tests.basePort, there are still a few tests that fail regularly.
> The first one is SecureServerTest.
> See also the discussion on this thread: http://osdir.com/ml/derby-dev-db-apache/2011-06/msg00337.html

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