public void handleLostHost(String host) {
    //Do nothing, the task will timeout anyway.
    //The actions can be failed faster as an optimization
    //if action timeout happens to be much larger than
    //heartbeat timeout.
  }
Find if the command report is for an in progress command
@param report
@return
ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionManager.java