[jira] [Assigned] (LOG4J2-2409) Mixed async loggers should not fully initialize ThrowableProxy unless it is used

["Carter Kozak (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4J2-2409?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carter Kozak reassigned LOG4J2-2409:
------------------------------------

    Assignee: Carter Kozak

> Mixed async loggers should not fully initialize ThrowableProxy unless it is used
> --------------------------------------------------------------------------------
>
>                 Key: LOG4J2-2409
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2409
>             Project: Log4j 2
>          Issue Type: Sub-task
>          Components: Core
>    Affects Versions: 2.11.1
>            Reporter: Carter Kozak
>            Assignee: Carter Kozak
>            Priority: Major
>
> Mixed async loggers pay the full cost for the extended stack trace regardless of whether it's used in the pattern. This involves class loading for each stack frame, which is heavily dependent on the runtime environment, and is generally several times slower than writing the raw stack trace, even with disk IO taken into account.
> Fixing LOG4J2-2407 will cause the same issue for fully async loggers unless we implement deferred initialization.



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