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Posted to issues@karaf.apache.org by "Jean-Baptiste Onofré (Jira)" <ji...@apache.org> on 2022/11/26 06:02:00 UTC
[jira] [Updated] (KARAF-6697) karaf-maven-plugin verify goal leaks threads
[ https://issues.apache.org/jira/browse/KARAF-6697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Baptiste Onofré updated KARAF-6697:
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Target Version/s: 4.2.17, 4.4.3, 4.3.9
> karaf-maven-plugin verify goal leaks threads
> --------------------------------------------
>
> Key: KARAF-6697
> URL: https://issues.apache.org/jira/browse/KARAF-6697
> Project: Karaf
> Issue Type: Bug
> Components: karaf
> Affects Versions: 4.2.7, 4.2.8
> Reporter: Wouter Born
> Assignee: Jean-Baptiste Onofré
> Priority: Major
> Attachments: karaf-no-threads-leak.png, karaf-threads-leak.png
>
>
> We use the verify goal of the karaf-maven-plugin to verify 200+ features in our openHAB add-ons build (see [pom.xml|https://github.com/openhab/openhab-addons/blob/2.5.x/bundles/pom.xml]).
> When monitoring the build using [VisualVM|https://visualvm.github.io/] the live thread counts keep increasing each time the verify goal is executed.
> It increases to ~2000 threads after invoking the goal 200+ times:
>
> !karaf-threads-leak.png!
>
> When the [plugin|https://github.com/openhab/openhab-addons/blob/65eff40dba68a346845f4c69db495bed2086b05f/bundles/pom.xml#L399-L402] is removed from the build everything returns to normal (this was a full build with tests):
>
> !karaf-no-threads-leak.png!
>
> To reproduce it on our code:
> # {{git clone -b 2.5.x --single-branch git@github.com:openhab/openhab-addons.git}}
> # {{cd openhab-addons}}
> # {{mvn clean install -DskipChecks -DskipTests}}
> # Monitor the live thread counts using a tool like VisualVM
> When re-running the same build without Karaf feature validation, VisualVM will show that the live thread counts peak at 20 instead:
> # {{mvn clean install -DskipChecks -DskipTests -Dfeatures.verify.skip=true}}
> I also tested the 4.2.8 version of the plugin but it was still leaking threads.
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