title: How does Log42 async logger behaves on sudden shutdown of application?
body: <p>For asynchronous logging, what happens to the logs that are not yet written to the destination appender and the application/system goes down? Do we loose these logs (since they are in memory) or is there a way to recover them?</p>
  
  <p>I don't want to loose any ERROR level logging. So my next question is: Is there a way to configure sync and async logging for a single appender at log level? For e.g. I want my file appender to perform ERROR level logging synchronously while INFO/DEBUG asynchronously?</p>
  
  <p>Thanks in advance!</p>