Adapt Doppelganger to Altair (#9969)

Co-authored-by: rkapka <rkapka@wp.pl>
This commit is contained in:
Potuz 2022-04-04 10:55:55 -03:00 committed by GitHub
parent 67c8776f3c
commit defa602e50
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 172 additions and 237 deletions

View File

@ -15,6 +15,7 @@ import (
"github.com/prysmaticlabs/prysm/encoding/bytesutil"
"github.com/prysmaticlabs/prysm/monitoring/tracing"
ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
"github.com/prysmaticlabs/prysm/runtime/version"
"github.com/prysmaticlabs/prysm/time/slots"
"go.opencensus.io/trace"
"google.golang.org/grpc/codes"
@ -25,7 +26,7 @@ var errPubkeyDoesNotExist = errors.New("pubkey does not exist")
var errOptimisticMode = errors.New("the node is currently optimistic and cannot serve validators")
var nonExistentIndex = types.ValidatorIndex(^uint64(0))
const numStatesToCheck = 2
var errParticipation = status.Errorf(codes.Internal, "Failed to obtain epoch participation")
// ValidatorStatus returns the validator status of the current epoch.
// The status response can be one of the following:
@ -110,44 +111,67 @@ func (vs *Server) CheckDoppelGanger(ctx context.Context, req *ethpb.DoppelGanger
return nil, status.Error(codes.Internal, "Could not get head state")
}
currEpoch := slots.ToEpoch(headState.Slot())
isRecent, resp := checkValidatorsAreRecent(currEpoch, req)
// Return early if we are in phase0.
if headState.Version() == version.Phase0 {
log.Info("Skipping goppelganger check for Phase 0")
resp := &ethpb.DoppelGangerResponse{
Responses: []*ethpb.DoppelGangerResponse_ValidatorResponse{},
}
for _, v := range req.ValidatorRequests {
resp.Responses = append(resp.Responses,
&ethpb.DoppelGangerResponse_ValidatorResponse{
PublicKey: v.PublicKey,
DuplicateExists: false,
})
}
return resp, nil
}
headSlot := headState.Slot()
currEpoch := slots.ToEpoch(headSlot)
// If all provided keys are recent we skip this check
// as we are unable to effectively determine if a doppelganger
// is active.
isRecent, resp := checkValidatorsAreRecent(currEpoch, req)
if isRecent {
return resp, nil
}
// We walk back from the current head state to the state at the beginning of the previous 2 epochs.
// Where S_i , i := 0,1,2. i = 0 would signify the current head state in this epoch.
previousEpoch, err := currEpoch.SafeSub(1)
if err != nil {
previousEpoch = currEpoch
}
olderEpoch, err := previousEpoch.SafeSub(1)
if err != nil {
olderEpoch = previousEpoch
}
prevState, err := vs.retrieveAfterEpochTransition(ctx, previousEpoch)
// We request a state 32 slots ago. We are guaranteed to have
// currentSlot > 32 since we assume that we are in Altair's fork.
prevState, err := vs.ReplayerBuilder.ReplayerForSlot(headSlot - params.BeaconConfig().SlotsPerEpoch).ReplayBlocks(ctx)
if err != nil {
return nil, status.Error(codes.Internal, "Could not get previous state")
}
olderState, err := vs.retrieveAfterEpochTransition(ctx, olderEpoch)
headCurrentParticipation, err := headState.CurrentEpochParticipation()
if err != nil {
return nil, status.Error(codes.Internal, "Could not get older state")
return nil, errParticipation
}
headPreviousParticipation, err := headState.PreviousEpochParticipation()
if err != nil {
return nil, errParticipation
}
prevCurrentParticipation, err := prevState.CurrentEpochParticipation()
if err != nil {
return nil, errParticipation
}
prevPreviousParticipation, err := prevState.PreviousEpochParticipation()
if err != nil {
return nil, errParticipation
}
resp = &ethpb.DoppelGangerResponse{
Responses: []*ethpb.DoppelGangerResponse_ValidatorResponse{},
}
for _, v := range req.ValidatorRequests {
// If the validator's last recorded epoch was
// less than or equal to `numStatesToCheck` epochs ago, this method will not
// be able to catch duplicates. This is due to how attestation
// inclusion works, where an attestation for the current epoch
// is able to included in the current or next epoch. Depending
// on which epoch it is included the balance change will be
// reflected in the following epoch.
if v.Epoch+numStatesToCheck >= currEpoch {
// If the validator's last recorded epoch was less than 1 epoch
// ago, the current doppelganger check will not be able to
// identify dopplelgangers since an attestation can take up to
// 31 slots to be included.
if v.Epoch+1 >= currEpoch {
resp.Responses = append(resp.Responses,
&ethpb.DoppelGangerResponse_ValidatorResponse{
PublicKey: v.PublicKey,
@ -155,37 +179,15 @@ func (vs *Server) CheckDoppelGanger(ctx context.Context, req *ethpb.DoppelGanger
})
continue
}
valIndex, ok := olderState.ValidatorIndexByPubkey(bytesutil.ToBytes48(v.PublicKey))
valIndex, ok := prevState.ValidatorIndexByPubkey(bytesutil.ToBytes48(v.PublicKey))
if !ok {
// Ignore if validator pubkey doesn't exist.
continue
}
baseBal, err := olderState.BalanceAtIndex(valIndex)
if err != nil {
return nil, status.Error(codes.Internal, "Could not get validator's balance")
}
nextBal, err := prevState.BalanceAtIndex(valIndex)
if err != nil {
return nil, status.Error(codes.Internal, "Could not get validator's balance")
}
// If the next epoch's balance is higher, we mark it as an existing
// duplicate.
if nextBal > baseBal {
log.Infof("current %d with last epoch %d and difference in bal %d gwei", currEpoch, v.Epoch, nextBal-baseBal)
resp.Responses = append(resp.Responses,
&ethpb.DoppelGangerResponse_ValidatorResponse{
PublicKey: v.PublicKey,
DuplicateExists: true,
})
continue
}
currBal, err := headState.BalanceAtIndex(valIndex)
if err != nil {
return nil, status.Error(codes.Internal, "Could not get validator's balance")
}
// If the current epoch's balance is higher, we mark it as an existing
// duplicate.
if currBal > nextBal {
if (headCurrentParticipation[valIndex] != 0) || (headPreviousParticipation[valIndex] != 0) ||
(prevCurrentParticipation[valIndex] != 0) || (prevPreviousParticipation[valIndex] != 0) {
log.WithField("ValidatorIndex", valIndex).Infof("Participation flag found")
resp.Responses = append(resp.Responses,
&ethpb.DoppelGangerResponse_ValidatorResponse{
PublicKey: v.PublicKey,
@ -374,8 +376,8 @@ func checkValidatorsAreRecent(headEpoch types.Epoch, req *ethpb.DoppelGangerRequ
// Due to how balances are reflected for individual
// validators, we can only effectively determine if a
// validator voted or not if we are able to look
// back more than `numStatesToCheck` epochs into the past.
if v.Epoch+numStatesToCheck < headEpoch {
// back more than 1 epoch into the past.
if v.Epoch+1 < headEpoch {
validatorsAreRecent = false
// Zero out response if we encounter non-recent validators to
// guard against potential misuse.

View File

@ -8,7 +8,6 @@ import (
"github.com/d4l3k/messagediff"
types "github.com/prysmaticlabs/eth2-types"
"github.com/prysmaticlabs/go-bitfield"
mockChain "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
@ -17,7 +16,6 @@ import (
mockstategen "github.com/prysmaticlabs/prysm/beacon-chain/state/stategen/mock"
v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
mockSync "github.com/prysmaticlabs/prysm/beacon-chain/sync/initial-sync/testing"
fieldparams "github.com/prysmaticlabs/prysm/config/fieldparams"
"github.com/prysmaticlabs/prysm/config/params"
"github.com/prysmaticlabs/prysm/container/trie"
"github.com/prysmaticlabs/prysm/crypto/bls"
@ -961,27 +959,15 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
name: "normal doppelganger request",
wantErr: false,
svSetup: func(t *testing.T) (*Server, *ethpb.DoppelGangerRequest, *ethpb.DoppelGangerResponse) {
hs, ps, os, keys, builder := createStateSetup(t, 4)
// Previous Epoch State
for i := 0; i < 3; i++ {
bal, err := ps.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 100 gwei, to mock an inactivity leak
assert.NoError(t, ps.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal+1000000000))
}
// Older Epoch State
for i := 0; i < 3; i++ {
bal, err := os.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 200 gwei, to mock an inactivity leak
assert.NoError(t, os.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal+2000000000))
}
hs, ps, keys := createStateSetupAltair(t, 3)
rb := mockstategen.NewMockReplayerBuilder()
rb.SetMockStateForSlot(ps, 20)
vs := &Server{
HeadFetcher: &mockChain.ChainService{
State: hs,
},
SyncChecker: &mockSync.Sync{IsSyncing: false},
ReplayerBuilder: builder,
ReplayerBuilder: rb,
}
request := &ethpb.DoppelGangerRequest{
ValidatorRequests: make([]*ethpb.DoppelGangerRequest_ValidatorRequest, 0),
@ -1005,37 +991,19 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
name: "doppelganger exists current epoch",
wantErr: false,
svSetup: func(t *testing.T) (*Server, *ethpb.DoppelGangerRequest, *ethpb.DoppelGangerResponse) {
hs, ps, os, keys, builder := createStateSetup(t, 4)
// Previous Epoch State
for i := 0; i < 2; i++ {
bal, err := ps.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 100 gwei, to mock an inactivity leak
assert.NoError(t, ps.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal+1000000000))
}
bal, err := ps.BalanceAtIndex(types.ValidatorIndex(2))
assert.NoError(t, err)
// Sub 100 gwei, to mock an active validator.
assert.NoError(t, ps.UpdateBalancesAtIndex(types.ValidatorIndex(2), bal-1000000000))
// Older Epoch State
for i := 0; i < 2; i++ {
bal, err := os.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 200 gwei, to mock an inactivity leak
assert.NoError(t, os.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal+2000000000))
}
bal, err = os.BalanceAtIndex(types.ValidatorIndex(2))
assert.NoError(t, err)
// Sub 100 gwei, to mock an active validator.
assert.NoError(t, os.UpdateBalancesAtIndex(types.ValidatorIndex(2), bal-1000000000))
hs, ps, keys := createStateSetupAltair(t, 3)
rb := mockstategen.NewMockReplayerBuilder()
rb.SetMockStateForSlot(ps, 20)
currentIndices := make([]byte, 64)
currentIndices[2] = 1
require.NoError(t, hs.SetCurrentParticipationBits(currentIndices))
vs := &Server{
HeadFetcher: &mockChain.ChainService{
State: hs,
},
SyncChecker: &mockSync.Sync{IsSyncing: false},
ReplayerBuilder: builder,
ReplayerBuilder: rb,
}
request := &ethpb.DoppelGangerRequest{
ValidatorRequests: make([]*ethpb.DoppelGangerRequest_ValidatorRequest, 0),
@ -1070,37 +1038,19 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
name: "doppelganger exists previous epoch",
wantErr: false,
svSetup: func(t *testing.T) (*Server, *ethpb.DoppelGangerRequest, *ethpb.DoppelGangerResponse) {
hs, ps, os, keys, builder := createStateSetup(t, 4)
// Previous Epoch State
for i := 0; i < 2; i++ {
bal, err := ps.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 100 gwei, to mock an inactivity leak
assert.NoError(t, ps.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal+1000000000))
}
bal, err := ps.BalanceAtIndex(types.ValidatorIndex(2))
assert.NoError(t, err)
// Sub 100 gwei, to mock an active validator.
assert.NoError(t, ps.UpdateBalancesAtIndex(types.ValidatorIndex(2), bal-1000000000))
// Older Epoch State
for i := 0; i < 2; i++ {
bal, err := os.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 200 gwei, to mock an inactivity leak
assert.NoError(t, os.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal+2000000000))
}
bal, err = os.BalanceAtIndex(types.ValidatorIndex(2))
assert.NoError(t, err)
// Sub 200 gwei, to mock an active validator.
assert.NoError(t, os.UpdateBalancesAtIndex(types.ValidatorIndex(2), bal-2000000000))
hs, ps, keys := createStateSetupAltair(t, 3)
prevIndices := make([]byte, 64)
prevIndices[2] = 1
require.NoError(t, ps.SetPreviousParticipationBits(prevIndices))
rb := mockstategen.NewMockReplayerBuilder()
rb.SetMockStateForSlot(ps, 20)
vs := &Server{
HeadFetcher: &mockChain.ChainService{
State: hs,
},
SyncChecker: &mockSync.Sync{IsSyncing: false},
ReplayerBuilder: builder,
ReplayerBuilder: rb,
}
request := &ethpb.DoppelGangerRequest{
ValidatorRequests: make([]*ethpb.DoppelGangerRequest_ValidatorRequest, 0),
@ -1135,29 +1085,26 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
name: "multiple doppelganger exists",
wantErr: false,
svSetup: func(t *testing.T) (*Server, *ethpb.DoppelGangerRequest, *ethpb.DoppelGangerResponse) {
hs, ps, os, keys, builder := createStateSetup(t, 4)
// Previous Epoch State
for i := 10; i < 15; i++ {
bal, err := ps.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 100 gwei, to mock an inactivity leak
assert.NoError(t, ps.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal-1000000000))
}
hs, ps, keys := createStateSetupAltair(t, 3)
currentIndices := make([]byte, 64)
currentIndices[10] = 1
currentIndices[11] = 2
require.NoError(t, hs.SetPreviousParticipationBits(currentIndices))
rb := mockstategen.NewMockReplayerBuilder()
rb.SetMockStateForSlot(ps, 20)
// Older Epoch State
for i := 10; i < 15; i++ {
bal, err := os.BalanceAtIndex(types.ValidatorIndex(i))
assert.NoError(t, err)
// Add 200 gwei, to mock an inactivity leak
assert.NoError(t, os.UpdateBalancesAtIndex(types.ValidatorIndex(i), bal-2000000000))
prevIndices := make([]byte, 64)
for i := 12; i < 20; i++ {
prevIndices[i] = 1
}
require.NoError(t, ps.SetCurrentParticipationBits(prevIndices))
vs := &Server{
HeadFetcher: &mockChain.ChainService{
State: hs,
},
SyncChecker: &mockSync.Sync{IsSyncing: false},
ReplayerBuilder: builder,
ReplayerBuilder: rb,
}
request := &ethpb.DoppelGangerRequest{
ValidatorRequests: make([]*ethpb.DoppelGangerRequest_ValidatorRequest, 0),
@ -1175,6 +1122,17 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
DuplicateExists: true,
})
}
for i := 15; i < 20; i++ {
request.ValidatorRequests = append(request.ValidatorRequests, &ethpb.DoppelGangerRequest_ValidatorRequest{
PublicKey: keys[i].PublicKey().Marshal(),
Epoch: 3,
SignedRoot: []byte{'A'},
})
response.Responses = append(response.Responses, &ethpb.DoppelGangerResponse_ValidatorResponse{
PublicKey: keys[i].PublicKey().Marshal(),
DuplicateExists: false,
})
}
return vs, request, response
},
@ -1183,14 +1141,16 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
name: "attesters are too recent",
wantErr: false,
svSetup: func(t *testing.T) (*Server, *ethpb.DoppelGangerRequest, *ethpb.DoppelGangerResponse) {
hs, _, _, keys, _ := createStateSetup(t, 4)
hs, ps, keys := createStateSetupAltair(t, 3)
rb := mockstategen.NewMockReplayerBuilder()
rb.SetMockStateForSlot(ps, 20)
vs := &Server{
HeadFetcher: &mockChain.ChainService{
State: hs,
},
SyncChecker: &mockSync.Sync{IsSyncing: false},
ReplayerBuilder: nil,
ReplayerBuilder: rb,
}
request := &ethpb.DoppelGangerRequest{
ValidatorRequests: make([]*ethpb.DoppelGangerRequest_ValidatorRequest, 0),
@ -1208,6 +1168,39 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
})
}
return vs, request, response
},
},
{
name: "exit early for Phase 0",
wantErr: false,
svSetup: func(t *testing.T) (*Server, *ethpb.DoppelGangerRequest, *ethpb.DoppelGangerResponse) {
hs, _, keys := createStateSetupPhase0(t, 3)
vs := &Server{
HeadFetcher: &mockChain.ChainService{
State: hs,
},
SyncChecker: &mockSync.Sync{IsSyncing: false},
}
request := &ethpb.DoppelGangerRequest{
ValidatorRequests: []*ethpb.DoppelGangerRequest_ValidatorRequest{
{
PublicKey: keys[0].PublicKey().Marshal(),
Epoch: 1,
SignedRoot: []byte{'A'},
},
},
}
response := &ethpb.DoppelGangerResponse{
Responses: []*ethpb.DoppelGangerResponse_ValidatorResponse{
{
PublicKey: keys[0].PublicKey().Marshal(),
DuplicateExists: false,
},
},
}
return vs, request, response
},
},
@ -1228,104 +1221,36 @@ func TestServer_CheckDoppelGanger(t *testing.T) {
}
}
func createStateSetup(t *testing.T, head types.Epoch) (state.BeaconState,
state.BeaconState, state.BeaconState, []bls.SecretKey, *mockstategen.MockReplayerBuilder) {
rb := &mockstategen.MockReplayerBuilder{}
func createStateSetupPhase0(t *testing.T, head types.Epoch) (state.BeaconState,
state.BeaconState, []bls.SecretKey) {
gs, keys := util.DeterministicGenesisState(t, 64)
hs := gs.Copy()
// Head State
headEpoch := head
headSlot := types.Slot(headEpoch) * params.BeaconConfig().SlotsPerEpoch
headSlot := types.Slot(head)*params.BeaconConfig().SlotsPerEpoch + params.BeaconConfig().SlotsPerEpoch/2
assert.NoError(t, hs.SetSlot(headSlot))
assingments, _, err := helpers.CommitteeAssignments(context.Background(), hs, headEpoch)
assert.NoError(t, err)
for _, ctr := range assingments {
pendingAtt := &ethpb.PendingAttestation{
AggregationBits: bitfield.NewBitlist64(uint64(len(ctr.Committee))).ToBitlist().Not(),
Data: &ethpb.AttestationData{
Slot: ctr.AttesterSlot,
CommitteeIndex: ctr.CommitteeIndex,
BeaconBlockRoot: make([]byte, fieldparams.RootLength),
Source: &ethpb.Checkpoint{
Epoch: 0,
Root: make([]byte, fieldparams.RootLength),
},
Target: &ethpb.Checkpoint{
Epoch: 1,
Root: make([]byte, fieldparams.RootLength),
},
},
InclusionDelay: 1,
ProposerIndex: 10,
}
assert.NoError(t, hs.AppendCurrentEpochAttestations(pendingAtt))
}
rb.SetMockState(hs)
// Previous Epoch State
prevEpoch := headEpoch - 1
prevSlot := headSlot - params.BeaconConfig().SlotsPerEpoch
ps := gs.Copy()
prevSlot, err := slots.EpochEnd(prevEpoch)
assert.NoError(t, err)
assert.NoError(t, ps.SetSlot(prevSlot))
assingments, _, err = helpers.CommitteeAssignments(context.Background(), ps, prevEpoch)
assert.NoError(t, err)
for _, ctr := range assingments {
pendingAtt := &ethpb.PendingAttestation{
AggregationBits: bitfield.NewBitlist64(uint64(len(ctr.Committee))).ToBitlist().Not(),
Data: &ethpb.AttestationData{
Slot: ctr.AttesterSlot,
CommitteeIndex: ctr.CommitteeIndex,
BeaconBlockRoot: make([]byte, fieldparams.RootLength),
Source: &ethpb.Checkpoint{
Epoch: 0,
Root: make([]byte, fieldparams.RootLength),
},
Target: &ethpb.Checkpoint{
Epoch: 1,
Root: make([]byte, fieldparams.RootLength),
},
},
InclusionDelay: 1,
ProposerIndex: 10,
}
assert.NoError(t, ps.AppendCurrentEpochAttestations(pendingAtt))
}
rb.SetMockState(ps)
// Older Epoch State
olderEpoch := prevEpoch - 1
os := gs.Copy()
olderSlot, err := slots.EpochEnd(olderEpoch)
assert.NoError(t, err)
assert.NoError(t, os.SetSlot(olderSlot))
assingments, _, err = helpers.CommitteeAssignments(context.Background(), os, olderEpoch)
assert.NoError(t, err)
for _, ctr := range assingments {
attSlot := ctr.AttesterSlot
if attSlot == olderSlot {
continue
}
pendingAtt := &ethpb.PendingAttestation{
AggregationBits: bitfield.NewBitlist64(uint64(len(ctr.Committee))).ToBitlist().Not(),
Data: &ethpb.AttestationData{
Slot: attSlot,
CommitteeIndex: ctr.CommitteeIndex,
BeaconBlockRoot: make([]byte, fieldparams.RootLength),
Source: &ethpb.Checkpoint{
Epoch: 0,
Root: make([]byte, fieldparams.RootLength),
},
Target: &ethpb.Checkpoint{
Epoch: 1,
Root: make([]byte, fieldparams.RootLength),
},
},
InclusionDelay: 1,
ProposerIndex: 10,
}
assert.NoError(t, os.AppendCurrentEpochAttestations(pendingAtt))
}
rb.SetMockState(os)
return hs, ps, os, keys, rb
return hs, ps, keys
}
func createStateSetupAltair(t *testing.T, head types.Epoch) (state.BeaconState,
state.BeaconState, []bls.SecretKey) {
gs, keys := util.DeterministicGenesisStateAltair(t, 64)
hs := gs.Copy()
// Head State
headSlot := types.Slot(head)*params.BeaconConfig().SlotsPerEpoch + params.BeaconConfig().SlotsPerEpoch/2
assert.NoError(t, hs.SetSlot(headSlot))
// Previous Epoch State
prevSlot := headSlot - params.BeaconConfig().SlotsPerEpoch
ps := gs.Copy()
assert.NoError(t, ps.SetSlot(prevSlot))
return hs, ps, keys
}

View File

@ -41,6 +41,13 @@ func (b *MockReplayerBuilder) SetMockState(s state.BeaconState) {
b.forSlot[s.Slot()] = &MockReplayer{State: s}
}
func (b *MockReplayerBuilder) SetMockStateForSlot(s state.BeaconState, slot types.Slot) {
if b.forSlot == nil {
b.forSlot = make(map[types.Slot]*MockReplayer)
}
b.forSlot[slot] = &MockReplayer{State: s}
}
func (b *MockReplayerBuilder) SetMockSlotError(s types.Slot, e error) {
if b.forSlot == nil {
b.forSlot = make(map[types.Slot]*MockReplayer)

View File

@ -83,14 +83,7 @@ func run(ctx context.Context, v iface.Validator) {
if err != nil {
log.Fatalf("Could not wait for validator activation: %v", err)
}
err = v.CheckDoppelGanger(ctx)
if isConnectionError(err) {
log.Warnf("Could not wait for checking doppelganger: %v", err)
continue
}
if err != nil {
log.Fatalf("Could not succeed with doppelganger check: %v", err)
}
headSlot, err = v.CanonicalHeadSlot(ctx)
if isConnectionError(err) {
log.Warnf("Could not get current canonical head slot: %v", err)
@ -99,6 +92,14 @@ func run(ctx context.Context, v iface.Validator) {
if err != nil {
log.Fatalf("Could not get current canonical head slot: %v", err)
}
err = v.CheckDoppelGanger(ctx)
if isConnectionError(err) {
log.Warnf("Could not wait for checking doppelganger: %v", err)
continue
}
if err != nil {
log.Fatalf("Could not succeed with doppelganger check: %v", err)
}
break
}