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List:       log4j-dev
Subject:    [jira] [Commented] (LOG4J2-1340) AsyncLogger's Ringbuffer holding all JVM memory
From:       "Remko Popma (JIRA)" <jira () apache ! org>
Date:       2016-03-31 22:42:25
Message-ID: JIRA.12954874.1459406891000.106287.1459464145443 () Atlassian ! JIRA
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    [ https://issues.apache.org/jira/browse/LOG4J2-1340?page=com.atlassian.jira.plugin \
.system.issuetabpanels:comment-tabpanel&focusedCommentId=15220797#comment-15220797 ] 

Remko Popma commented on LOG4J2-1340:
-------------------------------------

To use a ringbuffer with 128 slots, the value to set is 128, not 128*1024 (that's \
just to make the number more readable).

Currently this cannot be set in the log4j configuration file. You have two options:
# Web containers usually have a file where you can specify system properties. Add an \
entry  {{AsyncLoggerConfig.RingBufferSize=128}} to that file.  # Create a file named \
{{log4j2.component.properties}} and include it in the classpath of your application. \
Add an entry  {{AsyncLoggerConfig.RingBufferSize=128}} to that file. 

> AsyncLogger's Ringbuffer holding all JVM memory
> -----------------------------------------------
> 
> Key: LOG4J2-1340
> URL: https://issues.apache.org/jira/browse/LOG4J2-1340
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.5
> Environment: Linux 2.6.32-431.17.1.el6.x86_64 x86_64
> java version "1.7.0_75"
> OpenJDK Runtime Environment (rhel-2.5.4.0.el6_6-x86_64 u75-b13)
> OpenJDK 64-Bit Server VM (build 24.75-b04, mixed mode)
> Reporter: Soma
> Attachments: heapdump.JPG
> 
> 
> JVM getting Out of memory. when I see the heapdump analysis I found 93% of memory \
> occupied by AsyncLogger's RingBuffer. we have total of 5 AsyncLoggers in our \
> applications each having default buffer size.



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