Feat/log catchup (#877)

* add logging when doing catchup

* adding decision log

* log for full queue for sync beacon

* Update chain/beacon/node.go

* Apply suggestions from code review

Co-authored-by: Yolan Romailler <AnomalRoil@users.noreply.github.com>

chain/beacon/chain.go

@@ -204,6 +204,7 @@ func (c *chainStore) tryAppend(last, newB *chain.Beacon) bool {
 	// only send if it's not full already
 	case c.catchupBeacons <- newB:
 	default:
+		c.l.Debugw("", "chain_store", "catchup", "channel", "full")
 	}
 	return true
 }

chain/beacon/node.go

@@ -328,6 +328,7 @@ func (h *Handler) run(startTime int64) {
 				go h.chain.RunSync(context.Background(), current.round, nil)
 			}
 		case b := <-h.chain.AppendedBeaconNoSync():
+			h.l.Debugw("", "beacon_loop", "catchupmode", "last_is", b.Round, "current", current.round, "catchup_launch", b.Round < current.round)
 			if b.Round < current.round {
 				// When network is down, all alive nodes will broadcast their
 				// signatures periodically with the same period. As soon as one
@@ -339,7 +340,9 @@ func (h *Handler) run(startTime int64) {
 				// channel will trigger again etc until we arrive at the correct
 				// round.
 				go func(c roundInfo, latest *chain.Beacon) {
+					h.l.Debugw("sleeping now", "beacon_loop", "catchupmode", "last_is", latest.Round, "seep_for", h.conf.Group.CatchupPeriod)
 					h.conf.Clock.Sleep(h.conf.Group.CatchupPeriod)
+					h.l.Debugw("broadcast next partial", "beacon_loop", "catchupmode", "last_is", latest.Round)
 					h.broadcastNextPartial(c, latest)
 				}(current, b)
 			}