title: Is it possible to recover when a slot has been removed during a Flink streaming
body: <p>I have a standalone cluster where there is a Flink streaming job with 1-hour event time windows. After 2-3 hour of a run, the job dies with the "org.apache.flink.util.FlinkException: The assigned slot ... was removed" exception. </p>
  
  <p>The job is working well when my windows are only 15minutes.</p>
  
  <p>How can the job recover after losing a slot? 
  Is it possible to run the same calculations on multiple slots to prevent this error? 
  Shall I increase any of the timeouts? if so which one?</p>