Github user jvz commented on a diff in the pull request: https://github.com/apache/zookeeper/pull/148#discussion_r96145218 --- 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"> + <Properties> + <Property name="consoleLayoutPattern">%d{ISO8601} [myid:%X{myid}] - %-5p [%t:%C{1}@%L] - %m%n</Property> --- End diff -- I'd generally advise against [enabling location information](http://logging.apache.org/log4j/2.x/manual/layouts.html#LocationInformation) by default due to performance issues. I personally don't find location information all that useful outside of caught exceptions anyways.
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