Bug #8799
Updated by Peter Amstutz about 8 years ago
If node manager crashes or otherwise fails during node shutdown, a node can go into drained state; when node manager recovers the drained node is not a candidate for shutdown (because it's not "idle") but is still considered "up".
Node manager should not count these nodes as "up".
In addition, if a node is "drained" but not being actively shut down, node manager should either put it back into idle state, or go ahead and start a new shutdown actor.