mhenke1 commented on issue #2990: Change log level dynamically URL: https://github.com/apache/incubator-openwhisk/pull/2990#issuecomment-346155636 @chetanmeh Thank you for your feedback. Learning from proven solutions like Apache Sling is always a valuable asset to avoid making the same things wrong :-) Indeed we also looked into using Turbofilter, but had to learn that in our case they do not work well. The reason is that we use Akka Logging. Log message are passed through the Akka Event Bus (we win asynchronicity on this way) before passed to Logback. When running on INFO level all DEBUG level messaged are not put into the event bus and therefore do not reach Logback and it's filters. The only way to exploit Logback filtering would have been to put all messages into the event bus and use Logback to filter out the one with the appropriate level. But in this case we would would again see increased memory pressure due to bigger internal buffers needed by the event bus. So we decided for this simpler solution.
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