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https://issues.apache.org/jira/browse/LOG4J2-1116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15192745#comment-15192745
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Ralph Goers commented on LOG4J2-1116:
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I have actually started work on this but am nowhere near done. I was actually
able to leave Log4jThreadLocal in core as everything in the API thinks it is
just using a ThreadLocal. There is a ThreadLocalRegistry that is added to the
API along with a ThreadLocalRegistryAware. The Registry implementation actually
creates the Log4jThreadLocal as the caller just requests the ThreadLocal it
wants by name.
> Web app-friendly thread locals for gc-free logging (was: upgrade to log4j2
> causes too frequent minor gc)
> --------------------------------------------------------------------------------------------------------
>
> Key: LOG4J2-1116
> URL: https://issues.apache.org/jira/browse/LOG4J2-1116
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.3
> Environment: jdk1.6
> slf4j 1.7.9
> log4j2.3
> Reporter: Mingjiang Shi
> Assignee: Remko Popma
> Priority: Critical
> Fix For: 2.6
>
> Attachments: Log4jThreadLocal.java
>
>
> We used slf4j+log1.2 in our spring web application. Due to the log4j1.0
> performance issue, we upgrade it to log4j2. When it goes to production, it
> experienced very frequent minor gc (once per second) even though the eden
> area is not full. For example, the eden area just occupied 10%, the minor gc
> also happens. The issue disappears when rolling back to log4j1.2.
> Can anyone show some hints on diagnose this issue? Thanks!
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