Low Description
The Master tries to obtain a session to the RMI host:port that is defined int he web.xml file of the Slave. If for some reason, such as a typo in the above definition, then it is supposed to try again after retryDelay milliseconds as many times as the value of numberOfRetries.
I have forced that the Master could not locate the host of the Slave (Master and Slave are running on two different hosts but in web.xml of the Master, <host> is set to localhost.
I have attached the console output, because although numberOfRetries is set to 5 (default value), it does actually try 1 to 6 times (problem 1), and continues after the sixth retry has failed.