All cases assume system has been set up (unless otherwise specify)

(server 1 lives in clue.ece.cmu.edu, server 2 lives in risk.ece.cmu.edu)

Case 1: testing baseline scenario

Description: accessing the application under normal circumstances as specified in baseline scenario

Steps:

• Go to http://chico.ece.cmu.edu:8080/examples/servlets/index.htm or http://chico.ece.cmu.edu:8080/examples/servlets/admin.htm
• Follows link and instructions for using the application
• Observe everything running normally as expected
• We assume that every user performs logout before closing the browser.

Case 2.1: testing FT scenario with first server crashes

Description: accessing the application while encounter fatal error in server 1

Steps:

• Go to http://chico.ece.cmu.edu:8080/examples/servlets/index.htm or  http://chico.ece.cmu.edu:8080/examples/servlets/admin.htm 
• Follows link and instructions for using the application

• Ctrl-c the server 1 (or kill –9)
• Observe everything running normally (from the client side) while at the server side, everything move toward to server 2

Case 2.2: testing FT scenario with first server recovered

Description: accessing the application while server 1 is down and then recover (follow up on case 2.1)

Steps:

• Follows link and instructions for using the application (continue from case 2.1)

• Restart server 1
• Observe everything running normally with server 1 becomes the primary server again

Case 2.3: testing FT scenario with second server crashes

Description: accessing the application while both servers are running and then server 2 crashes (follow up on case 2.2)

Steps:

• Follows link and instructions for using the application (continue from case 2.1)

• Ctrl-c the server 2 (or kill –9)
• Observe everything running normally (from the client side) while at the server side, everything stays at server 1

Case 3: testing FT scenario with Fault detector

Description: accessing the application while both servers are monitored by the fault detectors, servers are re-launching upon crashes are detected

Steps:

• Launch all programs and systems necessarily (except for the BookStoreServer)

• Go to http://chico.ece.cmu.edu:8080/examples/servlets/index.htm or

•           http://chico.ece.cmu.edu:8080/examples/servlets/admin.htm

• Follows link and instructions for using the application

• Observe everything running correctly since Fault Detector program will launch the BookStoreServer automatically