NewDreamNetwork/ceph — comment on commit ae08a7ea1ffa53136b3e3f568de0cffb3d02db4c
File:  line 0
By gregsfortytwo:

I really don't know how you're getting that out of this patch set. Elaborate? Looks to me like we set last_ack whenever get an Ack, and in tick() if we've exceeded the timeout since last_ack then we fail the mon. With a little extra so that we aren't checking it if we don't actually have unacked PG stats, and don't expect instant responses if we go from clean to dirty stats...