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https://issues.apache.org/jira/browse/LOG4J2-505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13909161#comment-13909161
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Remko Popma commented on LOG4J2-505:
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About the Disruptor in general, I am not aware of any issues. Personally I love
the design and the kind of architecture it affords and I am using the Disruptor
extensively in a project at work. There is a Google group about the Disruptor
that you may be interested in:
https://groups.google.com/forum/#!forum/lmax-disruptor
This is the place to look to see if other people experience problems with the
Disruptor.
About Async Loggers, I would say that the more threads you have doing logging,
and the more messages you are logging, the more attractive Async Loggers
become. AFAIK all AsyncLogger-specific problems have been resolved or have a
workaround (except LOG4J2-520, which applies to both AsyncLoggers and Async
Appenders, still need to investigate that).
All I can say furthermore is that if a new issue is found I will try to address
it as soon as possible.
Does that answer your question?
> Memory leak with
> org.apache.logging.log4j.core.async.AsyncLoggerConfigHelper$Log4jEventWrapper
> ----------------------------------------------------------------------------------------------
>
> Key: LOG4J2-505
> URL: https://issues.apache.org/jira/browse/LOG4J2-505
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0-beta9
> Reporter: Tal Liron
> Assignee: Remko Popma
> Fix For: 2.0-beta9
>
>
> Instances of this class seem to be created but never garbage collected. Here
> is a jmap dump of the problem:
> https://dl.dropboxusercontent.com/u/122806/jvm8_gc2.zip
> Use jhat to analyze it: if you go to the instance count, you will see that
> the aforementioned class is way out of control.
> Some background on how I discovered this, which may help: I am currently
> working with the Oracle OpenJDK team to debug a memory leak that has existed
> with JSR-292 (invokedynamic) that has been present since 7u40, and also
> plagues OpenJDK 8 right now. The bug is prevalent in the Nashorn engine,
> which is being shipped with JDK 8. Indeed, in the memory dump above, you'll
> see that JSR-292 and Nashorn classes are also out of control -- but still
> second to the log4j class!
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