[jira] [Created] (LOG4J2-1121) LoggerConfig performance improvement: remove waitForCompletion and associated fields

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

Remko Popma created LOG4J2-1121:
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             Summary: LoggerConfig performance improvement: remove waitForCompletion and associated fields
                 Key: LOG4J2-1121
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1121
             Project: Log4j 2
          Issue Type: Improvement
          Components: Core
    Affects Versions: 2.3
            Reporter: Remko Popma


This ticket follows up on LOG4J2-1120. Out of the three changes identified in LOG4J2-1120, only two could be implemented in time for the 2.4 release.

This ticket tracks the remaining work for the third change:
* Since {{clearAppenders()}} is only called after all appenders have been stopped, {{waitForCompletion()}} may no longer be necessary (unless I am missing something here). If so, the {{shutdownLock}}, {{shutdown}} and {{counter}} fields can be removed. Not incrementing the atomic counters with every event in the hot path should give better performance.

LOG4J2-1120 shows benchmark results that support this.



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