Check txMaxSize.

pkg/relay/ethereum/chain.go

@@ -47,6 +47,8 @@ type Chain struct {
 	ibcHandler *ibchandler.Ibchandler
 	multicall3 *multicall3.Multicall3
 
+	txMaxSize uint64
+
 	ethereumSigner EthereumSigner
 
 	errorRepository ErrorRepository
@@ -59,6 +61,8 @@ type Chain struct {
 var _ core.Chain = (*Chain)(nil)
 
 func NewChain(config ChainConfig) (*Chain, error) {
+	logger := GetModuleLogger()
+
 	id := big.NewInt(int64(config.EthChainId))
 	client, err := client.NewETHClient(
 		config.RpcAddr,
@@ -105,6 +109,11 @@ func NewChain(config ChainConfig) (*Chain, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to create error repository: %v", err)
 	}
+	txMaxSize := config.GetTxMaxSize()
+	if txMaxSize == 0 {
+		txMaxSize = 128 * 1024  // go-ethereum/core/txpool/legacypool/legacypool.go
+		logger.Info(fmt.Sprintf("txMaxSize is zero. set to %v", txMaxSize));
+	}
 
 	return &Chain{
 		config:  config,
@@ -118,6 +127,8 @@ func NewChain(config ChainConfig) (*Chain, error) {
 
 		errorRepository: errorRepository,
 
+		txMaxSize: txMaxSize,
+
 		allowLCFunctions: alfs,
 	}, nil
 }

pkg/relay/ethereum/log.go

@@ -8,6 +8,7 @@ const (
 	logAttrRawErrorData    = "raw_error_data"
 	logAttrRawTxData       = "raw_tx_data"
 	logAttrTxHash          = "tx_hash"
+	logAttrTxSize          = "tx_size"
 	logAttrBlockHash       = "block_hash"
 	logAttrBlockNumber     = "block_number"
 	logAttrTxIndex         = "tx_index"

pkg/relay/ethereum/tx.go

@@ -60,7 +60,10 @@ func (c *Chain) SendMsgs(msgs []sdk.Msg) ([]core.MsgID, error) {
 			break
 		} else {
 			logger = iter.updateLoggerMessageInfo(logger, from, built.count)
-			logger = &log.RelayLogger{Logger: logger.With(logAttrTxHash, built.tx.Hash())}
+			logger = &log.RelayLogger{Logger: logger.With(
+				logAttrTxHash, built.tx.Hash(),
+				logAttrTxSize, built.tx.Size(),
+			)}
 		}
 
 		if rawTxData, err := built.tx.MarshalBinary(); err != nil {
@@ -747,6 +750,10 @@ func (iter *CallIter) buildMultiTx(ctx context.Context, c *Chain) (*CallIterBuil
 				return err
 			}
 
+			if 1 < count && c.txMaxSize < multiTx.Size() {
+				return fmt.Errorf("tx size exceeds txMaxSize: tx=%v, max=%v", multiTx.Size(), c.txMaxSize)
+			}
+
 			txGasLimit, err := estimateGas(ctx, c, multiTx, 1 == count, logger)
 			if err != nil {
 				return err

proto/relayer/chains/ethereum/config/config.proto

@@ -40,6 +40,8 @@ message ChainConfig {
   repeated string abi_paths = 17;
 
   string multicall3_address = 18;
+
+  optional uint64 tx_max_size = 19;
 }
 
 message AllowLCFunctionsConfig {