Removed outdated check. (#4574)

* Removed outdated check.

* Fallback for old sync for BeaconBlockChannel.

node/node.go

@@ -499,10 +499,6 @@ func (node *Node) validateNodeMessage(ctx context.Context, payload []byte) (
 					utils.Logger().Debug().Uint64("receivedNum", block.NumberU64()).
 						Uint64("currentNum", curBeaconHeight).Msg("beacon block sync message rejected")
 					return nil, 0, errors.New("beacon block height smaller than current height beyond tolerance")
-				} else if block.NumberU64()-beaconBlockHeightTolerance > curBeaconHeight {
-					utils.Logger().Debug().Uint64("receivedNum", block.NumberU64()).
-						Uint64("currentNum", curBeaconHeight).Msg("beacon block sync message rejected")
-					return nil, 0, errors.Errorf("beacon block height too much higher than current height beyond tolerance, block %d, current %d, epoch %d , current %d", block.NumberU64(), curBeaconHeight, block.Epoch().Uint64(), curBeaconBlock.Epoch().Uint64())
 				} else if block.NumberU64() <= curBeaconHeight {
 					utils.Logger().Debug().Uint64("receivedNum", block.NumberU64()).
 						Uint64("currentNum", curBeaconHeight).Msg("beacon block sync message ignored")

node/node_handler.go

@@ -76,8 +76,6 @@ func (node *Node) HandleNodeMessage(
 				if node.Blockchain().ShardID() != shard.BeaconChainShardID {
 					for _, block := range blocks {
 						if block.ShardID() == 0 {
-							utils.Logger().Info().
-								Msgf("Beacon block being handled by block channel: %d", block.NumberU64())
 							if block.IsLastBlockInEpoch() {
 								go func(blk *types.Block) {
 									node.BeaconBlockChannel <- blk

node/node_syncing.go

@@ -231,7 +231,16 @@ func (node *Node) doBeaconSyncing() {
 		// If Downloader is not working, we need also deal with blocks from beaconBlockChannel
 		go func(node *Node) {
 			// TODO ek – infinite loop; add shutdown/cleanup logic
-			for _ = range node.BeaconBlockChannel {
+			for b := range node.BeaconBlockChannel {
+				if b != nil && b.IsLastBlockInEpoch() {
+					_, err := node.EpochChain().InsertChain(types.Blocks{b}, true)
+					if err != nil {
+						utils.Logger().Error().Err(err).Msgf("[SYNC] InsertChain failed shard: %d epoch:%d number:%d", b.Header().ShardID(), b.Epoch().Uint64(), b.NumberU64())
+					} else {
+						utils.Logger().Info().
+							Msgf("Beacon block being handled by block channel: epoch: %d, number: %d", b.Epoch().Uint64(), b.NumberU64())
+					}
+				}
 			}
 		}(node)
 	}