Github user jvz commented on a diff in the pull request: https://github.com/apache/zookeeper/pull/148#discussion_r96145164 --- Diff: conf/log4j2.xml --- @@ -0,0 +1,56 @@ +<?xml version="1.0" encoding="UTF-8" ?> +<!-- All loggers are Async if + -DLog4jContextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector if is set --> +<Configuration status="warn" strict="true"> --- End diff -- Not sure why you're using strict mode here. You're not using the right XML elements for strict mode. See the [docs](http://logging.apache.org/log4j/2.x/manual/configuration.html#Strict_XML). It'd be simpler to just remove the strict attribute as it's not the same type of strict as JS or Perl, for example (it's mainly useful for XSD validation).
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