fix: stop trying to sync with uncooperative peers

node/consensus/ceremony/broadcast_messaging.go

@@ -158,6 +158,10 @@ func (e *CeremonyDataClockConsensusEngine) handleCeremonyPeerListAnnounce(
 
 	e.peerMapMx.Lock()
 	for _, p := range announce.PeerList {
+		if _, ok := e.uncooperativePeersMap[string(p.PeerId)]; ok {
+			continue
+		}
+
 		if bytes.Equal(p.PeerId, e.pubSub.GetPeerID()) {
 			continue
 		}

node/consensus/ceremony/ceremony_data_clock_consensus_engine.go

@@ -87,6 +87,7 @@ type CeremonyDataClockConsensusEngine struct {
 	peerAnnounceMap                map[string]*protobufs.CeremonyPeerListAnnounce
 	peerMap                        map[string]*peerInfo
 	activeChannelsMap              map[string]ChannelServer
+	uncooperativePeersMap          map[string]*peerInfo
 	fullResync                     bool
 }
 
@@ -157,6 +158,7 @@ func NewCeremonyDataClockConsensusEngine(
 		syncingStatus:         SyncStatusNotSyncing,
 		peerAnnounceMap:       map[string]*protobufs.CeremonyPeerListAnnounce{},
 		peerMap:               map[string]*peerInfo{},
+		uncooperativePeersMap: map[string]*peerInfo{},
 	}
 
 	logger.Info("constructing consensus engine")

node/consensus/ceremony/consensus_frames.go

@@ -892,6 +892,10 @@ func (e *CeremonyDataClockConsensusEngine) collect(
 					"could not establish direct channel",
 					zap.Error(err),
 				)
+				e.peerMapMx.Lock()
+				e.uncooperativePeersMap[string(peerId)] = e.peerMap[string(peerId)]
+				delete(e.peerMap, string(peerId))
+				e.peerMapMx.Unlock()
 			} else {
 				from := latest.FrameNumber
 				if from == 0 {