The rest of the graph

The rest of the graph shows multiple requests. We'll focus on the following two:

Notice that in the first set of requests, in green, we made three attempts. Note also, in red, the requests were load-balanced, in a round-robin manner, among web03, web01, and web02. INFO indicates a FAILURE!.

The first request of the next set of requests began 10 seconds later and was sent to the web03 backend server. INFO indicates SUCCESS!