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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