eth/executionclient: use go-eth2-client with el_offline support

beacon/goclient/goclient.go

@@ -234,7 +234,7 @@ func (gc *GoClient) addSingleClient(ctx context.Context, addr string) error {
 		eth2clienthttp.WithReducedMemoryUsage(true),
 		eth2clienthttp.WithAllowDelayedStart(true),
 		eth2clienthttp.WithHooks(gc.singleClientHooks()),
-		eth2clienthttp.WithSyncDistanceTolerance(gc.syncDistanceTolerance),
+		eth2clienthttp.WithELConnectionCheck(true),
 	)
 	if err != nil {
 		gc.log.Error("Consensus http client initialization failed",
@@ -367,7 +367,6 @@ func (gc *GoClient) Healthy(ctx context.Context) error {
 	recordBeaconClientStatus(ctx, statusSyncing, gc.multiClient.Address())
 	recordSyncDistance(ctx, syncState.SyncDistance, gc.multiClient.Address())
 
-	// TODO: also check if syncState.ElOffline when github.com/attestantio/go-eth2-client supports it
 	if syncState.IsSyncing && syncState.SyncDistance > gc.syncDistanceTolerance {
 		gc.log.Error("Consensus client is not synced")
 		return errSyncing
@@ -376,6 +375,10 @@ func (gc *GoClient) Healthy(ctx context.Context) error {
 		gc.log.Error("Consensus client is in optimistic mode")
 		return fmt.Errorf("optimistic")
 	}
+	if syncState.ELOffline {
+		gc.log.Error("Consensus client's EL node is offline")
+		return fmt.Errorf("EL is offline")
+	}
 
 	recordBeaconClientStatus(ctx, statusSynced, gc.multiClient.Address())
 

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/dgraph-io/badger/v4 v4.2.0
 	github.com/dgraph-io/ristretto v0.1.1
 	github.com/ethereum/go-ethereum v1.14.8
-	github.com/ferranbt/fastssz v0.1.3
+	github.com/ferranbt/fastssz v0.1.4
 	github.com/go-chi/chi/v5 v5.0.8
 	github.com/go-chi/render v1.0.2
 	github.com/golang/gddo v0.0.0-20200528160355-8d077c1d8f4c
@@ -19,7 +19,7 @@ require (
 	github.com/gorilla/websocket v1.5.3
 	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/herumi/bls-eth-go-binary v1.29.1
-	github.com/holiman/uint256 v1.3.1
+	github.com/holiman/uint256 v1.3.2
 	github.com/ilyakaznacheev/cleanenv v1.4.2
 	github.com/jellydator/ttlcache/v3 v3.2.0
 	github.com/libp2p/go-libp2p v0.36.3
@@ -30,7 +30,7 @@ require (
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.20.5
-	github.com/prysmaticlabs/go-bitfield v0.0.0-20240328144219-a1caa50c3a1e
+	github.com/prysmaticlabs/go-bitfield v0.0.0-20240618144021-706c95b2dd15
 	github.com/prysmaticlabs/prysm/v4 v4.0.8
 	github.com/rs/zerolog v1.32.0
 	github.com/sanity-io/litter v1.5.6
@@ -50,13 +50,15 @@ require (
 	go.uber.org/zap v1.27.0
 	golang.org/x/exp v0.0.0-20240808152545-0cdaa3abc0fa
 	golang.org/x/mod v0.20.0
-	golang.org/x/sync v0.8.0
-	golang.org/x/text v0.18.0
+	golang.org/x/sync v0.10.0
+	golang.org/x/text v0.21.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 	gopkg.in/yaml.v3 v3.0.1
 	tailscale.com v1.72.0
 )
 
+require github.com/emicklei/dot v1.6.4 // indirect
+
 require (
 	github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c // indirect
 	github.com/DataDog/zstd v1.5.2 // indirect
@@ -89,7 +91,7 @@ require (
 	github.com/elastic/gosigar v0.14.3 // indirect
 	github.com/ethereum/c-kzg-4844 v1.0.0 // indirect
 	github.com/ethereum/go-verkle v0.1.1-0.20240306133620-7d920df305f0 // indirect
-	github.com/fatih/color v1.17.0 // indirect
+	github.com/fatih/color v1.18.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/flynn/noise v1.1.0 // indirect
 	github.com/francoispqt/gojay v1.2.13 // indirect
@@ -132,7 +134,7 @@ require (
 	github.com/jbenet/goprocess v0.1.4 // indirect
 	github.com/joho/godotenv v1.4.0 // indirect
 	github.com/klauspost/compress v1.17.9 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.9 // indirect
 	github.com/koron/go-ssdp v0.0.4 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
@@ -150,7 +152,7 @@ require (
 	github.com/libp2p/go-yamux/v4 v4.0.1 // indirect
 	github.com/libp2p/zeroconf/v2 v2.2.0 // indirect
 	github.com/marten-seemann/tcp v0.0.0-20210406111302-dfbc87cc63fd // indirect
-	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/miekg/dns v1.1.62 // indirect
@@ -230,13 +232,13 @@ require (
 	go.opentelemetry.io/otel/trace v1.32.0 // indirect
 	go.uber.org/dig v1.18.0 // indirect
 	go.uber.org/fx v1.22.2 // indirect
-	golang.org/x/crypto v0.27.0 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/net v0.29.0 // indirect
-	golang.org/x/sys v0.27.0 // indirect
-	golang.org/x/term v0.24.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
+	golang.org/x/term v0.28.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
 	golang.org/x/tools v0.24.0 // indirect
-	golang.org/x/xerrors v0.0.0-20240716161551-93cc26a95ae9 // indirect
+	golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect
 	gonum.org/v1/gonum v0.13.0 // indirect
 	google.golang.org/protobuf v1.35.1 // indirect
 	gopkg.in/Knetic/govaluate.v3 v3.0.0 // indirect
@@ -251,9 +253,8 @@ replace github.com/google/flatbuffers => github.com/google/flatbuffers v1.11.0
 
 replace github.com/dgraph-io/ristretto => github.com/dgraph-io/ristretto v0.1.1-0.20211108053508-297c39e6640f
 
-// github.com/attestantio/go-eth2-client considers node as synced if is_syncing is false,
-// however, it's been observed that it may take up to around 50 slots until is_syncing becomes true,
-// which causes downtime.
-// Using el_offline flag doesn't solve the issue because Prysm doesn't set it (TODO: check behavior of other clients).
-// Using a fix from https://github.com/ssvlabs/go-eth2-client/commits/fix-multi-rotation-v0.21.7/
-replace github.com/attestantio/go-eth2-client => github.com/ssvlabs/go-eth2-client v0.6.31-0.20250128220448-69c1f6bda599
+// github.com/attestantio/go-eth2-client doesn't support el_offline flag, it causes downtime when EL node is down but CL node is up
+// Using a fix from https://github.com/ssvlabs/go-eth2-client/commits/syncing-el-offline/ (https://github.com/attestantio/go-eth2-client/pull/192)
+// NOTE: Prysm doesn't set el_offline correctly (https://github.com/prysmaticlabs/prysm/issues/14226),
+// so the fix uses workaround with checking sync distance to check if EL is offline
+replace github.com/attestantio/go-eth2-client => github.com/ssvlabs/go-eth2-client v0.6.31-0.20250203205310-2b7a98912f15