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Posted to notifications@logging.apache.org by "Carter Kozak (Jira)" <ji...@apache.org> on 2019/12/31 14:49:00 UTC

[jira] [Resolved] (LOG4J2-2752) Reduce memory overhead using thread locals with non-reusable messages

     [ https://issues.apache.org/jira/browse/LOG4J2-2752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carter Kozak resolved LOG4J2-2752.
----------------------------------
    Resolution: Fixed

> Reduce memory overhead using thread locals with non-reusable messages
> ---------------------------------------------------------------------
>
>                 Key: LOG4J2-2752
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2752
>             Project: Log4j 2
>          Issue Type: Improvement
>    Affects Versions: 2.13.0
>            Reporter: Carter Kozak
>            Assignee: Carter Kozak
>            Priority: Major
>             Fix For: 2.13.1
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Using ParameterizedMessageFactory (non-reusable) with thread locals for asynchronous logging results in unused object parameter arrays and empty StringBuilder buffers.
> We can update RingBufferLogEvent and MutableLogEvent to create both the StringBuilder buffer and parameter array lazily in order to avoid the memory overhead entirely when reusable messages are not used.



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