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Posted to dev@logging.apache.org by "Dan Berindei (JIRA)" <ji...@apache.org> on 2017/09/15 16:47:00 UTC

[jira] [Created] (LOG4J2-2052) Disable thread name caching by default

Dan Berindei created LOG4J2-2052:
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             Summary: Disable thread name caching by default
                 Key: LOG4J2-2052
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2052
             Project: Log4j 2
          Issue Type: Improvement
            Reporter: Dan Berindei
            Priority: Minor


We run our tests in parallel with TestNG and we use {{Thread.setName()}} for easy filtering of log messages from a single test. But since LOG4J2-1334, all the thread names are logged as {{TestNG}}, unless we use {{-DAsyncLogger.ThreadNameStrategy=UNCACHED}}.

JDK 8u102 removed the {{String}} allocation in {{Thread.getName()}} (https://bugs.openjdk.java.net/browse/JDK-8148842), so I suggest changing the default strategy to {{UNCACHED}}. Users of older JDKs will still be able to use {{-DAsyncLogger.ThreadNameStrategy=CACHED}} for the performance improvement.



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