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From "Tibor Digana (JIRA)" <j...@codehaus.org>
Subject [jira] (SUREFIRE-1110) Document the memory requirements to run unit- and integration tests for a release test
Date Mon, 10 Nov 2014 14:44:10 GMT

    [ https://jira.codehaus.org/browse/SUREFIRE-1110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=355939#comment-355939
] 

Tibor Digana commented on SUREFIRE-1110:
----------------------------------------

Hi Karl, Andreas

I have to use -Xmx768m -XX:MaxPermSize=768m on JDK 7 x64 on my PC.
It looks like the resources Karl has described 2G/1G is exhausting memory resources.

I tried to make failsafe-plugin in surefire-integration-tests/pom.xml forked without specifying
memory options in MAVEN_OPTS, but the build failed on
java.lang.OutOfMemoryError: GC Overload Limit Exceeded
This has maybe happened due to very low memory limits for heaped and non-heaped memory (I
tried -Xmx256m). The JConsole says that these boundaries are on the edge.
Why the IT have to run in the main process (see the POM failsafe-plugin in surefire-integration-tests/pom.xml)
?
Do you think that removing <forkMode>never</forkMode> and increasing Xmx and MaxPermSize
would be acceptable?
<argLine>-Xmx512m -XX:MaxPermSize=356m</argLine>
I think nowadays with non-forked failsafe-plugin, the argLine should not influence the main
process in which the plugin is running.
So if we make it forked with memory limits -Xmx768m -XX:MaxPermSize=768m, then the main process
would not need memory limit in MAVEN_OPTS on the system. Usually the unit tests run with unspecified
Xmx and MaxPermSize.

> Document the memory requirements to run unit- and integration tests for a release test
> --------------------------------------------------------------------------------------
>
>                 Key: SUREFIRE-1110
>                 URL: https://jira.codehaus.org/browse/SUREFIRE-1110
>             Project: Maven Surefire
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 2.18
>            Reporter: Karl-Heinz Marbaise
>            Priority: Minor
>             Fix For: 2.19
>
>
> It should be documented how to run unit and integration tests for a release check during
the vote.
> The following memory requirements are needed:
> {{export MAVEN_OPTS="-Xmx2048m -Xms1024m -XX:MaxPermSize=512m -Djava.awt.headless=true"}}.



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