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Posted to issues@ozone.apache.org by "Marton Elek (Jira)" <ji...@apache.org> on 2021/02/09 15:05:01 UTC

[jira] [Created] (HDDS-4814) Ozone couldn't be started with Java 15

Marton Elek created HDDS-4814:
---------------------------------

             Summary: Ozone couldn't be started with Java 15
                 Key: HDDS-4814
                 URL: https://issues.apache.org/jira/browse/HDDS-4814
             Project: Apache Ozone
          Issue Type: Improvement
            Reporter: Marton Elek


The magic -- which tries to provide sensible GC defaults -- fails on Java 15: 

{code}
No '-XX:...' jvm parameters are set. Adding safer GC settings '-XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=70 -XX:+CMSParallelRemarkEnabled' to the OZONE_OPTS
WARNING: /opt/ozone/logs does not exist. Creating.
Unrecognized VM option 'UseConcMarkSweepGC'
{code}



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