Handle quorum certificate failure gracefully (BFT-386) #48
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Leader should not panic when it fails to create commit/prepare quorum certificate. Instead, the triggering message processing should return the unexpected error, after cleaning caches, and let the current iteration time out.
No tests were added since reaching this code path is unexpected and should be unproducible.
Another option would be to explicitly advertise the renunciation of the leader’s role within the current view by introducing a new variant of
ConsensusMsg.