[jboss-jira] [JBoss JIRA] (DROOLS-2485) SpeedTest often fails with "java.lang.OutOfMemoryError: GC overhead limit exceeded"

[Jan Hrcek (JIRA)]

Jan Hrcek created DROOLS-2485:
---------------------------------

             Summary: SpeedTest often fails with "java.lang.OutOfMemoryError: GC overhead limit exceeded"
                 Key: DROOLS-2485
                 URL: https://issues.jboss.org/browse/DROOLS-2485
             Project: Drools
          Issue Type: Task
          Components: decision tables
    Affects Versions: 7.8.0.Final
            Reporter: Jan Hrcek
            Assignee: Toni Rikkola
            Priority: Minor
         Attachments: drools-wb_run1.png, drools-wb_run2.png

- when I run just that test class locally from IntelliJ, it runs ~20
seconds, with small Metaspace/heap consumption

- on jenkins (there's maven module-level build parallelism with -T2),
it runs 110-180s - no idea why it runs so much slower.

- I tried several time running identical command as is running on
jenkins [2], including version of JDK and memory settings == xmx=2G:
    - the Heap/Metaspace usage didn't get near the 2G maximum (see
screenshots from VisualVM from 2 runs)
    - the running time of that SpeedTest was 40-80s

- slaves used for full downstream build have 24G RAM + 8G swap, so
lack of RAM shouldn't be an issue

- there seems to be no connection to the issue you mentioned [3]

- looking at history of this SpeedTest I see that you committed it
initially as @Ignore, but Jozef later un-ignored it. Since this can be
considered performance test and is failing randomly from time to time,
I think we should mark it with @Ignore again. Wdyt? Any other ideas
what I could check to troubleshoot this?

[1] http://janhrcek.cz/random-failures/#/class/org.drools.workbench.services.verifier.webworker.client.SpeedTest/method/noConflictTable
[2] JAVA_HOME=/home/jhrcek/Tmp/jdk1.8.0_152 MAVEN_OPTS=-Xmx2g mvn -e
-nsu -fae -B -T2 -Pkie-wb,wildfly11,sourcemaps clean install
-Dfull=true -Dcontainer=wildfly11 -Dcontainer.profile=wildfly11
-Dintegration-tests=true -Dmaven.test.failure.ignore=true
-Dmaven.test.redirectTestOutputToFile=true
-Dgwt.compiler.localWorkers=1
[3] https://issues.jboss.org/browse/RHDM-488



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