Backport bloatnet EL --chain=bloatnet support (#19095)

wmitsuda · web-flow · commit 7f62c825d612 · 2026-02-11T00:54:18.000Z
This is a backport of `--chain=bloatnet` support added in the `performance-stable` branch. It should be pretty isolated from mainnet settings now, so it is safe to backport to main in order to minimize branch differences. With that PR, you should be able to do `erigon --chain=bloatnet` and all network settings of the shadowfork should be applied, no custom overrides must be necessary (treat them as a bug if you find some). External CL is necessary (I have a separate PR with caplin support). You may encounter some webseeds warnings on start, but I have concluded that's a separate issue happening in main already: #19094
diff --git a/cl/clparams/config.go b/cl/clparams/config.go
@@ -1362,6 +1362,10 @@ func GetConfigsByNetworkName(net string) (*NetworkConfig, *BeaconChainConfig, Ne
 	case networkname.Hoodi:
 		networkCfg, beaconCfg := GetConfigsByNetwork(chainspec.HoodiChainID)
 		return networkCfg, beaconCfg, chainspec.HoodiChainID, nil
+	case networkname.Bloatnet:
+		// Bloatnet uses mainnet CL config but on isolated network
+		networkCfg, beaconCfg := GetConfigsByNetwork(chainspec.MainnetChainID)
+		return networkCfg, beaconCfg, chainspec.MainnetChainID, nil
 	default:
 		return nil, nil, chainspec.MainnetChainID, errors.New("chain not found")
 	}
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
@@ -1909,7 +1909,12 @@ func SetEthConfig(ctx *cli.Context, nodeConfig *nodecfg.Config, cfg *ethconfig.C
 			Fatalf("chain name is not recognized: %s", chain)
 			return
 		}
-		cfg.NetworkID = spec.Config.ChainID.Uint64()
+		// Use custom NetworkID from spec if set, otherwise use ChainID
+		if spec.NetworkID != 0 {
+			cfg.NetworkID = spec.NetworkID
+		} else {
+			cfg.NetworkID = spec.Config.ChainID.Uint64()
+		}
 	}
 
 	cfg.Dirs = nodeConfig.Dirs
diff --git a/db/snapcfg/util.go b/db/snapcfg/util.go
@@ -67,6 +67,7 @@ var registry = &preverifiedRegistry{
 		networkname.Gnosis:     fromEmbeddedToml(snapshothashes.Gnosis),
 		networkname.Chiado:     fromEmbeddedToml(snapshothashes.Chiado),
 		networkname.Hoodi:      fromEmbeddedToml(snapshothashes.Hoodi),
+		networkname.Bloatnet:   fromEmbeddedToml(snapshothashes.Bloatnet),
 	},
 	cached: make(map[string]*Cfg),
 }
@@ -494,6 +495,7 @@ var KnownWebseeds = map[string][]string{
 	networkname.Gnosis:     webseedsParse(webseed.Gnosis),
 	networkname.Chiado:     webseedsParse(webseed.Chiado),
 	networkname.Hoodi:      webseedsParse(webseed.Hoodi),
+	networkname.Bloatnet:   webseedsParse(webseed.Bloatnet),
 }
 
 func webseedsParse(in []byte) (res []string) {
@@ -544,6 +546,7 @@ func LoadRemotePreverified(ctx context.Context) (err error) {
 		networkname.Gnosis:     webseedsParse(webseed.Gnosis),
 		networkname.Chiado:     webseedsParse(webseed.Chiado),
 		networkname.Hoodi:      webseedsParse(webseed.Hoodi),
+		networkname.Bloatnet:   webseedsParse(webseed.Bloatnet),
 	}
 
 	// Re-load the preverified hashes
@@ -555,6 +558,7 @@ func LoadRemotePreverified(ctx context.Context) (err error) {
 		networkname.Gnosis:     fromEmbeddedToml(snapshothashes.Gnosis),
 		networkname.Chiado:     fromEmbeddedToml(snapshothashes.Chiado),
 		networkname.Hoodi:      fromEmbeddedToml(snapshothashes.Hoodi),
+		networkname.Bloatnet:   fromEmbeddedToml(snapshothashes.Bloatnet),
 	})
 	return
 }
@@ -581,6 +585,8 @@ func GetToml(networkName string) []byte {
 		return snapshothashes.Chiado
 	case networkname.Hoodi:
 		return snapshothashes.Hoodi
+	case networkname.Bloatnet:
+		return snapshothashes.Bloatnet
 	default:
 		return nil
 	}
diff --git a/db/snaptype2/block_types.go b/db/snaptype2/block_types.go
@@ -48,6 +48,7 @@ func init() {
 	snapcfg.RegisterKnownTypes(networkname.Gnosis, ethereumTypes)
 	snapcfg.RegisterKnownTypes(networkname.Chiado, ethereumTypes)
 	snapcfg.RegisterKnownTypes(networkname.Hoodi, ethereumTypes)
+	snapcfg.RegisterKnownTypes(networkname.Bloatnet, ethereumTypes)
 }
 
 var Enums = struct {
diff --git a/execution/chain/networkname/network_name.go b/execution/chain/networkname/network_name.go
@@ -34,6 +34,7 @@ const (
 	BorE2ETestChain2Val = "bor-e2e-test-2Val"
 	Chiado              = "chiado"
 	Test                = "test"
+	Bloatnet            = "bloatnet"
 )
 
 var All = []string{
@@ -47,6 +48,7 @@ var All = []string{
 	Gnosis,
 	Chiado,
 	Test,
+	Bloatnet,
 }
 
 // Supported checks if the given network name is supported by Erigon.
diff --git a/execution/chain/spec/bootnodes.go b/execution/chain/spec/bootnodes.go
@@ -31,6 +31,17 @@ var mainnetBootnodes = []string{
 	"enode://4aeb4ab6c14b23e2c4cfdce879c04b0748a20d8e9b59e25ded2a08143e265c6c25936e74cbc8e641e3312ca288673d91f2f93f8e277de3cfa444ecdaaf982052@157.90.35.166:30303", // bootnode-hetzner-fsn
 }
 
+// bloatnetBootnodes are the enode URLs of the P2P bootstrap nodes running on
+// the bloatnet (perfdevnet-2) network.
+var bloatnetBootnodes = []string{
+	// ethpandaops bootnodes
+	"enode://22c1dd13d7738ae461740bbe1340733bdabe88c0682b5788bb308bb80f0d6281085196600416f187dc0f1d5d9613b1c2590e6e5b4003329a464910f613bd096a@157.180.14.229:30303",
+	"enode://d220de2edb15e5170383435fa9e55d9e2997c9dd4c8a07f6414ca46ac178375eec0274cd2fbcb70967c8f46b1d5150b5cac54a33907a47d6d954a0fdc477e2ad@157.180.14.230:30303",
+	"enode://3ba5f46aa1a9d863de4ce5ff67ec46704c43b2a1d5100e272dbfec5e56b350113018d3e67c400f09db60d4ec55df025bd209802c67826717a33a48acbe13b305@157.180.14.226:30303",
+	"enode://6867a722d721cc444ae26f58d896844694264f7532b409f1d31797e77c5603728cc834b46b1e8f0d8dcd734e50280dc711cfab8c5fc5211430894c5fbcf0a86e@157.180.14.225:30303",
+	"enode://d38286e50eea1bb75da0f89a65fa8236255d0e52b2980998c7d903be4c69e3477f9f0e54f6039c2308d8e3c41123f3d1aeee2ad4f2811ebd48557a3dc406a273@157.180.14.228:30303",
+}
+
 // hoodiBootnodes are the enode URLs of the P2P bootstrap nodes running on the
 // Hoodi test network.
 var hoodiBootnodes = []string{
diff --git a/execution/chain/spec/chainspecs/bloatnet.json b/execution/chain/spec/chainspecs/bloatnet.json
@@ -0,0 +1,39 @@
+{
+  "chainName": "bloatnet",
+  "chainId": 1,
+  "consensus": "ethash",
+  "homesteadBlock": 1150000,
+  "daoForkBlock": 1920000,
+  "eip150Block": 2463000,
+  "eip155Block": 2675000,
+  "byzantiumBlock": 4370000,
+  "constantinopleBlock": 7280000,
+  "petersburgBlock": 7280000,
+  "istanbulBlock": 9069000,
+  "muirGlacierBlock": 9200000,
+  "berlinBlock": 12244000,
+  "londonBlock": 12965000,
+  "arrowGlacierBlock": 13773000,
+  "grayGlacierBlock": 15050000,
+  "terminalTotalDifficulty": 58750000000000000000000,
+  "terminalTotalDifficultyPassed": true,
+  "mergeBlock": 15537394,
+  "shanghaiTime": 1681338455,
+  "cancunTime": 1710338135,
+  "pragueTime": 1746612311,
+  "blobSchedule": {
+    "cancun": {
+      "target": 3,
+      "max": 6,
+      "baseFeeUpdateFraction": 3338477
+    },
+    "prague": {
+      "target": 6,
+      "max": 9,
+      "baseFeeUpdateFraction": 5007716
+    }
+  },
+  "depositContractAddress": "0x00000000219ab540356cBB839Cbe05303d7705Fa",
+  "ethash": {},
+  "defaultBlockGasLimit": 60000000
+}
diff --git a/execution/chain/spec/config.go b/execution/chain/spec/config.go
@@ -41,6 +41,7 @@ func init() {
 	RegisterChainSpec(networkname.Gnosis, Gnosis)
 	RegisterChainSpec(networkname.Chiado, Chiado)
 	RegisterChainSpec(networkname.Test, Test)
+	RegisterChainSpec(networkname.Bloatnet, Bloatnet)
 
 	// verify registered chains
 	for _, spec := range registeredChainsByName {
@@ -118,7 +119,13 @@ func ChainSpecByGenesisHash(genesisHash common.Hash) (Spec, error) {
 // If the name already exists, it will be overwritten.
 func RegisterChainSpec(name string, spec Spec) {
 	registeredChainsByName[name] = spec
-	NetworkNameByID[spec.Config.ChainID.Uint64()] = name
+
+	// Use custom NetworkID if specified, otherwise use ChainID
+	networkID := spec.NetworkID
+	if networkID == 0 {
+		networkID = spec.Config.ChainID.Uint64()
+	}
+	NetworkNameByID[networkID] = name
 
 	if spec.GenesisHash != (common.Hash{}) {
 		registeredChainsByGenesisHash[spec.GenesisHash] = spec
@@ -133,6 +140,7 @@ type Spec struct {
 	Config           *chain.Config
 	Bootnodes        []string // list of bootnodes for the chain, if any
 	DNSNetwork       string   // address of a public DNS-based node list. See https://github.com/ethereum/discv4-dns-lists for more information.
+	NetworkID        uint64   // Optional custom network ID (defaults to ChainID if 0)
 }
 
 func (cs Spec) IsEmpty() bool {
@@ -204,6 +212,16 @@ var (
 		//Bootnodes:   TestBootnodes,
 		Genesis: TestGenesisBlock(),
 	}
+
+	Bloatnet = Spec{
+		Name:        networkname.Bloatnet,
+		GenesisHash: common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3"), // Same as mainnet
+		Bootnodes:   bloatnetBootnodes,
+		Config:      ReadChainConfig(chainspecs, "chainspecs/bloatnet.json"),
+		Genesis:     BloatnetGenesisBlock(),
+		DNSNetwork:  "", // No DNS discovery
+		NetworkID:   12159,
+	}
 )
 
 var chainNamesPoS = []string{
diff --git a/execution/chain/spec/genesis.go b/execution/chain/spec/genesis.go
@@ -56,11 +56,12 @@ func ReadPrealloc(fileSys fs.FS, filename string) types.GenesisAlloc {
 var (
 	// to preserve same pointer in genesis.Config and Spec.Config, init once and reuse configs
 
-	mainnetChainConfig = ReadChainConfig(chainspecs, "chainspecs/mainnet.json")
-	sepoliaChainConfig = ReadChainConfig(chainspecs, "chainspecs/sepolia.json")
-	hoodiChainConfig   = ReadChainConfig(chainspecs, "chainspecs/hoodi.json")
-	gnosisChainConfig  = ReadChainConfig(chainspecs, "chainspecs/gnosis.json")
-	chiadoChainConfig  = ReadChainConfig(chainspecs, "chainspecs/chiado.json")
+	mainnetChainConfig  = ReadChainConfig(chainspecs, "chainspecs/mainnet.json")
+	sepoliaChainConfig  = ReadChainConfig(chainspecs, "chainspecs/sepolia.json")
+	hoodiChainConfig    = ReadChainConfig(chainspecs, "chainspecs/hoodi.json")
+	gnosisChainConfig   = ReadChainConfig(chainspecs, "chainspecs/gnosis.json")
+	chiadoChainConfig   = ReadChainConfig(chainspecs, "chainspecs/chiado.json")
+	bloatnetChainConfig = ReadChainConfig(chainspecs, "chainspecs/bloatnet.json")
 )
 
 // MainnetGenesisBlock returns the Ethereum main net genesis block.
@@ -75,6 +76,18 @@ func MainnetGenesisBlock() *types.Genesis {
 	}
 }
 
+// BloatnetGenesisBlock returns the bloatnet genesis block (identical to mainnet).
+func BloatnetGenesisBlock() *types.Genesis {
+	return &types.Genesis{
+		Config:     bloatnetChainConfig,
+		Nonce:      66,
+		ExtraData:  hexutil.MustDecode("0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa"),
+		GasLimit:   5000,
+		Difficulty: big.NewInt(17179869184),
+		Alloc:      ReadPrealloc(allocs, "allocs/mainnet.json"),
+	}
+}
+
 // SepoliaGenesisBlock returns the Sepolia network genesis block.
 func SepoliaGenesisBlock() *types.Genesis {
 	return &types.Genesis{
diff --git a/go.mod b/go.mod
@@ -7,7 +7,7 @@ replace github.com/holiman/bloomfilter/v2 => github.com/AskAlexSharov/bloomfilte
 replace github.com/holiman/uint256 => github.com/erigontech/uint256 v0.0.0-20260128213548-c9ef4c05bfe3
 
 require (
-	github.com/erigontech/erigon-snapshot v1.3.1-0.20260105114333-2f59a10db72b
+	github.com/erigontech/erigon-snapshot v1.3.1-0.20260210221902-e495954c7e78
 	github.com/erigontech/erigonwatch v0.0.0-20240718131902-b6576bde1116
 	github.com/erigontech/mdbx-go v0.39.12
 	github.com/erigontech/secp256k1 v1.2.0
diff --git a/go.sum b/go.sum
@@ -299,8 +299,8 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
 github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
 github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
-github.com/erigontech/erigon-snapshot v1.3.1-0.20260105114333-2f59a10db72b h1:xXkx2s/uCiBujVSBih1esDtwH2NKfP/R7F7+Om13iv8=
-github.com/erigontech/erigon-snapshot v1.3.1-0.20260105114333-2f59a10db72b/go.mod h1:ooHlCl+eEYzebiPu+FP6Q6SpPUeMADn8Jxabv3IKb9M=
+github.com/erigontech/erigon-snapshot v1.3.1-0.20260210221902-e495954c7e78 h1:z3x7o3QoOw96XDs7noQ3KdQpiWZR51PGKF428kLLPCU=
+github.com/erigontech/erigon-snapshot v1.3.1-0.20260210221902-e495954c7e78/go.mod h1:ooHlCl+eEYzebiPu+FP6Q6SpPUeMADn8Jxabv3IKb9M=
 github.com/erigontech/erigonwatch v0.0.0-20240718131902-b6576bde1116 h1:KCFa2uXEfZoBjV4buzjWmCmoqVLXiGCq0ZmQ2OjeRvQ=
 github.com/erigontech/erigonwatch v0.0.0-20240718131902-b6576bde1116/go.mod h1:8vQ+VjvLu2gkPs8EwdPrOTAAo++WuLuBi54N7NuAF0I=
 github.com/erigontech/mdbx-go v0.39.12 h1:WjvPzloxXOYfRamIxt8NOB7i3/M8cSCSfWQHvMNANrE=
diff --git a/node/paths/paths.go b/node/paths/paths.go
@@ -114,6 +114,8 @@ func DataDirForNetwork(datadir string, network string) string {
 		return networkDataDirCheckingLegacy(datadir, "gnosis")
 	case networkname.Chiado:
 		return networkDataDirCheckingLegacy(datadir, "chiado")
+	case networkname.Bloatnet:
+		return networkDataDirCheckingLegacy(datadir, "bloatnet")
 
 	default:
 		return datadir

Original file line number	Diff line number	Diff line change
`@@ -1909,7 +1909,12 @@ func SetEthConfig(ctx cli.Context, nodeConfig nodecfg.Config, cfg *ethconfig.C`
`1909`	`1909`	`Fatalf("chain name is not recognized: %s", chain)`
`1910`	`1910`	`return`
`1911`	`1911`	`}`
`1912`		`- cfg.NetworkID = spec.Config.ChainID.Uint64()`
	`1912`	`+ // Use custom NetworkID from spec if set, otherwise use ChainID`
	`1913`	`+ if spec.NetworkID != 0 {`
	`1914`	`+ cfg.NetworkID = spec.NetworkID`
	`1915`	`+ } else {`
	`1916`	`+ cfg.NetworkID = spec.Config.ChainID.Uint64()`
	`1917`	`+ }`
`1913`	`1918`	`}`
`1914`	`1919`
`1915`	`1920`	`cfg.Dirs = nodeConfig.Dirs`
Original file line number	Diff line number	Diff line change
`@@ -48,6 +48,7 @@ func init() {`
`48`	`48`	`snapcfg.RegisterKnownTypes(networkname.Gnosis, ethereumTypes)`
`49`	`49`	`snapcfg.RegisterKnownTypes(networkname.Chiado, ethereumTypes)`
`50`	`50`	`snapcfg.RegisterKnownTypes(networkname.Hoodi, ethereumTypes)`
	`51`	`+ snapcfg.RegisterKnownTypes(networkname.Bloatnet, ethereumTypes)`
`51`	`52`	`}`
`52`	`53`
`53`	`54`	`var Enums = struct {`
Original file line number	Diff line number	Diff line change
`@@ -34,6 +34,7 @@ const (`
`34`	`34`	`BorE2ETestChain2Val = "bor-e2e-test-2Val"`
`35`	`35`	`Chiado = "chiado"`
`36`	`36`	`Test = "test"`
	`37`	`+ Bloatnet = "bloatnet"`
`37`	`38`	`)`
`38`	`39`
`39`	`40`	`var All = []string{`
`@@ -47,6 +48,7 @@ var All = []string{`
`47`	`48`	`Gnosis,`
`48`	`49`	`Chiado,`
`49`	`50`	`Test,`
	`51`	`+ Bloatnet,`
`50`	`52`	`}`
`51`	`53`
`52`	`54`	`// Supported checks if the given network name is supported by Erigon.`