[jira] [Created] (LOG4J2-1387) Memory leak related to shutdown hook

["Remko Popma (JIRA)" <ji...@apache.org>]

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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: log4j-dev-unsubscribe@logging.apache.org
For additional commands, e-mail: log4j-dev-help@logging.apache.org