Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/pull/628#issuecomment-97035552
I changed the TaskManager logging to make it consistent with the way the
other actors do the logging. Furthermore, by using a trait to mix the logger
in, we can easily switch between asynchronous and synchronous logging. We could
even make this configurable if the synchronous logging should become a
performance issue.
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