<?xml version="1.0" encoding="UTF-8"?> <configuration> <!-- This is a development logging configuration that logs to standard out, for an example of a production logging config, see the Akka docs: https://doc.akka.io/docs/akka/2.6/typed/logging.html#logback --> <appender name="STDOUT" target="System.out" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>[%date{ISO8601}] [%level] [%logger] [%thread] [%X{akkaSource}] - %msg%n</pattern> </encoder> </appender> <appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender"> <queueSize>1024</queueSize> <neverBlock>true</neverBlock> <appender-ref ref="STDOUT" /> </appender> <root level="INFO"> <appender-ref ref="ASYNC"/> </root> </configuration>