tysonnorris commented on a change in pull request #2648: Overhaul logging
URL: 
https://github.com/apache/incubator-openwhisk/pull/2648#discussion_r137381432
 
 

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 File path: common/scala/src/main/resources/logback.xml
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 @@ -0,0 +1,16 @@
+<configuration>
+  <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
 
 Review comment:
   Recommend an AsyncAppender here; from the docs 
https://logback.qos.ch/manual/appenders.html
   > This strategy has an amazingly favorable effect on performance at the cost 
of event loss.
   
   (and its worth adding a comment to the config to advise on the lossy 
behavior when discarding TRACE/DEBUG/INFO events when writing to stream is 
backed up to 80% of queue size)
   
 
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