Re-drain rounds per view before a retired ladder is left for good (an
online event, a manual retry or a view change still re-open it). Each
round costs at most MAX_CONSECUTIVE_REFINEMENT_FAILURES steps, so a
rung that never recovers is attempted a bounded 21 times over about a minute.
Re-drain rounds per view before a retired ladder is left for good (an
onlineevent, a manual retry or a view change still re-open it). Each round costs at most MAX_CONSECUTIVE_REFINEMENT_FAILURES steps, so a rung that never recovers is attempted a bounded 21 times over about a minute.