Hi, So basically, one of the examples of how we could violate such an invariant is that when, f.e., `controller.quorum.fetch.timeout.ms = 800ms`:
T=0ms: Follower sends fetch request and starts 800ms *fetchTimer* T=100ms: Leader receives request (100ms network latency) ... T=600ms: Leader waits 500ms for new data (MAX_FETCH_WAIT_MS) T=600ms: Leader sends response T=700ms: Response arrives at follower (100ms network latency) ... T=800ms: Follower *fetchTimer *expires. then the follower transitions to the *Prospective state*, and it triggers election... (wasted resources even leader is working fine). Is my understanding correct? If so, maybe adding such an example would be great to add to KIP? Maros.
