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https://issues.apache.org/jira/browse/LOG4J2-1387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Remko Popma updated LOG4J2-1387:
--------------------------------
Description:
[~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}
was:
[~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.
> 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}
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