Remko Popma created LOG4J2-1387:
-----------------------------------
Summary: Memory leak related to shutdown hook
Key: LOG4J2-1387
URL: https://issues.apache.org/jira/browse/LOG4J2-1387
Project: Log4j 2
Issue Type: Bug
Components: Core
Affects Versions: 2.5
Reporter: Yang ZHONG
[~yang_zhong] reported this issue with the shutdown hook on LOG4J2-868 (cannot
raise a new issue because this is disabled to defend against an Denial of
Service attack):
{quote}
It's leaking memory in log4J 2.5 (AsyncLoggerContext) @ JDK 8u92.
Total 2G memory used by 2 AsyncLoggerContext, each references 1G
DefaultShutdownCallBackRegistry$1
which references 4G DefaultShutdownCallBackRegistry
which references 4G CopyOnWriteArrayList
which references many many many DefaultShutdownCallBackRegistry$1
How to turn it off or what's the work-around please?
{quote}
A workaround is to disable the shutdown hook in the configuration with
{code}
<Configuration status="WARN" shutdownHook="disable">
...
{code}
Any more information to address the memory leak is welcome. I have not done
much analysis on this yet. If you can provide a patch that would be ideal but
additional analysis on what the problem is would be useful too.
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