faster disconnect for hosts

synced-pool.go

@@ -313,6 +313,11 @@ func (p *SyncedPool) RequestOwnership(id CartId) error {
 		err := r.ConfirmChange(id, p.Hostname)
 		all++
 		if err != nil {
+			r.MissedPings++
+			if r.MissedPings > 3 {
+				p.RemoveHost(r)
+				return fmt.Errorf("remote grain change failed %v", err)
+			}
 			log.Printf("Error confirming change: %v from %s\n", err, p.Hostname)
 			continue
 		}