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VC: Use not-synced/opt-synced BNs. (#4635) 

* Initial commit.

* Address review comments and recommendations.

* Fix too often `Execution client not in sync` messages in logs.

* Add failure reason for duties requests.

* Add more reasons to every place of ValidatorApiError.

* Address race condition issue.

* Remove `vc` argument for getFailureReason().
This commit is contained in:
Eugene Kabanov 2023-02-23 02:11:00 +02:00 committed by GitHub
parent 1dd07d5def
commit 08b6bb7a6b
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 1099 additions and 502 deletions
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22
beacon_chain/nimbus_validator_client.nim
View File

@ -161,11 +161,33 @@ proc onSlotStart(vc: ValidatorClientRef, wallTime: BeaconTime,
if checkIfShouldStopAtEpoch(wallSlot.slot, vc.config.stopAtEpoch):
return true
if len(vc.beaconNodes) > 1:
let
counts = vc.getNodeCounts()
# Good nodes are nodes which can be used for ALL the requests.
goodNodes = counts.data[int(RestBeaconNodeStatus.Synced)]
# Viable nodes are nodes which can be used only SOME of the requests.
viableNodes = counts.data[int(RestBeaconNodeStatus.OptSynced)] +
counts.data[int(RestBeaconNodeStatus.NotSynced)] +
counts.data[int(RestBeaconNodeStatus.Compatible)]
# Bad nodes are nodes which can't be used at all.
badNodes = counts.data[int(RestBeaconNodeStatus.Offline)] +
counts.data[int(RestBeaconNodeStatus.Online)] +
counts.data[int(RestBeaconNodeStatus.Incompatible)]
info "Slot start",
slot = shortLog(wallSlot.slot),
attestationIn = vc.getDurationToNextAttestation(wallSlot.slot),
blockIn = vc.getDurationToNextBlock(wallSlot.slot),
validators = vc.attachedValidators[].count(),
good_nodes = goodNodes, viable_nodes = viableNodes, bad_nodes = badNodes,
delay = shortLog(delay)
else:
info "Slot start",
slot = shortLog(wallSlot.slot),
attestationIn = vc.getDurationToNextAttestation(wallSlot.slot),
blockIn = vc.getDurationToNextBlock(wallSlot.slot),
validators = vc.attachedValidators[].count(),
node_status = $vc.beaconNodes[0].status,
delay = shortLog(delay)
return false

1090
beacon_chain/validator_client/api.nim
View File

File diff suppressed because it is too large Load Diff

20
beacon_chain/validator_client/attestation_service.nim
View File

@ -81,11 +81,12 @@ proc serveAttestation(service: AttestationServiceRef, adata: AttestationData,
let res =
try:
await vc.submitPoolAttestations(@[attestation], ApiStrategyKind.First)
except ValidatorApiError:
except ValidatorApiError as exc:
error "Unable to publish attestation",
attestation = shortLog(attestation),
validator = shortLog(validator),
validator_index = vindex
validator_index = vindex,
reason = exc.getFailureReason()
return false
except CancelledError as exc:
debug "Attestation publishing process was interrupted"
@ -160,11 +161,12 @@ proc serveAggregateAndProof*(service: AttestationServiceRef,
let res =
try:
await vc.publishAggregateAndProofs(@[signedProof], ApiStrategyKind.First)
except ValidatorApiError:
except ValidatorApiError as exc:
error "Unable to publish aggregated attestation",
attestation = shortLog(signedProof.message.aggregate),
validator = shortLog(validator),
validator_index = vindex
validator_index = vindex,
reason = exc.getFailureReason()
return false
except CancelledError as exc:
debug "Publish aggregate and proofs request was interrupted"
@ -287,9 +289,10 @@ proc produceAndPublishAggregates(service: AttestationServiceRef,
try:
await vc.getAggregatedAttestation(slot, attestationRoot,
ApiStrategyKind.Best)
except ValidatorApiError:
except ValidatorApiError as exc:
error "Unable to get aggregated attestation data", slot = slot,
attestation_root = shortLog(attestationRoot)
attestation_root = shortLog(attestationRoot),
reason = exc.getFailureReason()
return
except CancelledError as exc:
debug "Aggregated attestation request was interrupted"
@ -360,9 +363,10 @@ proc publishAttestationsAndAggregates(service: AttestationServiceRef,
let ad =
try:
await service.produceAndPublishAttestations(slot, committee_index, duties)
except ValidatorApiError:
except ValidatorApiError as exc:
error "Unable to proceed attestations", slot = slot,
committee_index = committee_index, duties_count = len(duties)
committee_index = committee_index, duties_count = len(duties),
reason = exc.getFailureReason()
return
except CancelledError as exc:
debug "Publish attestation request was interrupted"

16
beacon_chain/validator_client/block_service.nim
View File

@ -38,8 +38,8 @@ proc produceBlock(
try:
await vc.produceBlockV2(slot, randao_reveal, graffiti,
ApiStrategyKind.Best)
except ValidatorApiError:
error "Unable to retrieve block data"
except ValidatorApiError as exc:
error "Unable to retrieve block data", reason = exc.getFailureReason()
return Opt.none(PreparedBeaconBlock)
except CancelledError as exc:
error "Block data production has been interrupted"
@ -69,7 +69,8 @@ proc produceBlindedBlock(
await vc.produceBlindedBlock(slot, randao_reveal, graffiti,
ApiStrategyKind.Best)
except ValidatorApiError as exc:
error "Unable to retrieve blinded block data", error_msg = exc.msg
error "Unable to retrieve blinded block data", error_msg = exc.msg,
reason = exc.getFailureReason()
return Opt.none(PreparedBlindedBeaconBlock)
except CancelledError as exc:
error "Blinded block data production has been interrupted"
@ -214,8 +215,9 @@ proc publishBlock(vc: ValidatorClientRef, currentSlot, slot: Slot,
try:
debug "Sending blinded block"
await vc.publishBlindedBlock(signedBlock, ApiStrategyKind.First)
except ValidatorApiError:
error "Unable to publish blinded block"
except ValidatorApiError as exc:
error "Unable to publish blinded block",
reason = exc.getFailureReason()
return
except CancelledError as exc:
debug "Blinded block publication has been interrupted"
@ -275,8 +277,8 @@ proc publishBlock(vc: ValidatorClientRef, currentSlot, slot: Slot,
try:
debug "Sending block"
await vc.publishBlock(signedBlock, ApiStrategyKind.First)
except ValidatorApiError:
error "Unable to publish block"
except ValidatorApiError as exc:
error "Unable to publish block", reason = exc.getFailureReason()
return
except CancelledError as exc:
debug "Block publication has been interrupted"

71
beacon_chain/validator_client/common.nim
View File

@ -64,7 +64,7 @@ type
DutiesServiceRef* = ref object of ClientServiceRef
FallbackServiceRef* = ref object of ClientServiceRef
onlineEvent*: AsyncEvent
changesEvent*: AsyncEvent
ForkServiceRef* = ref object of ClientServiceRef
@ -127,7 +127,16 @@ type
duties*: Table[Epoch, SyncCommitteeDuty]
RestBeaconNodeStatus* {.pure.} = enum
Uninitalized, Offline, Incompatible, NotSynced, Online
Offline, ## BN is offline.
Online, ## BN is online, passed checkOnline() check.
Incompatible, ## BN configuration is NOT compatible with VC configuration.
Compatible, ## BN configuration is compatible with VC configuration.
NotSynced, ## BN is not in sync.
OptSynced, ## BN is optimistically synced (EL is not in sync).
Synced ## BN and EL are synced.
BeaconNodesCounters* = object
data*: array[int(high(RestBeaconNodeStatus)) + 1, int]
BeaconNodeServerRef* = ref BeaconNodeServer
@ -176,10 +185,18 @@ type
validatorsRegCache*: Table[ValidatorPubKey, SignedValidatorRegistrationV1]
rng*: ref HmacDrbgContext
ApiFailure* {.pure.} = enum
Communication, Invalid, NotFound, NotSynced, Internal, Unexpected
ApiNodeFailure* = object
node*: BeaconNodeServerRef
failure*: ApiFailure
ValidatorClientRef* = ref ValidatorClient
ValidatorClientError* = object of CatchableError
ValidatorApiError* = object of ValidatorClientError
data*: seq[ApiNodeFailure]
const
DefaultDutyAndProof* = DutyAndProof(epoch: Epoch(0xFFFF_FFFF_FFFF_FFFF'u64))
@ -225,6 +242,49 @@ proc `$`*(roles: set[BeaconNodeRole]): string =
else:
"{}"
proc `$`*(status: RestBeaconNodeStatus): string =
case status
of RestBeaconNodeStatus.Offline: "offline"
of RestBeaconNodeStatus.Online: "online"
of RestBeaconNodeStatus.Incompatible: "incompatible"
of RestBeaconNodeStatus.Compatible: "compatible"
of RestBeaconNodeStatus.NotSynced: "bn-unsynced"
of RestBeaconNodeStatus.OptSynced: "el-unsynced"
of RestBeaconNodeStatus.Synced: "synced"
proc `$`*(failure: ApiFailure): string =
case failure
of ApiFailure.Communication: "Connection with beacon node has been lost"
of ApiFailure.Invalid: "Invalid response received from beacon node"
of ApiFailure.NotFound: "Beacon node did not found requested entity"
of ApiFailure.NotSynced: "Beacon node not in sync with network"
of ApiFailure.Internal: "Beacon node reports internal failure"
of ApiFailure.Unexpected: "Beacon node reports unexpected status"
proc getNodeCounts*(vc: ValidatorClientRef): BeaconNodesCounters =
var res = BeaconNodesCounters()
for node in vc.beaconNodes: inc(res.data[int(node.status)])
res
proc getFailureReason*(exc: ref ValidatorApiError): string =
var counts: array[int(high(ApiFailure)) + 1, int]
let errors = exc[].data
if len(errors) > 1:
var maxFailure =
block:
var maxCount = -1
var res = ApiFailure.Unexpected
for item in errors:
inc(counts[int(item.failure)])
if counts[int(item.failure)] > maxCount:
maxCount = counts[int(item.failure)]
res = item.failure
res
$maxFailure
else:
$errors[0].failure
proc shortLog*(roles: set[BeaconNodeRole]): string =
var r = "AGBSD"
if BeaconNodeRole.AttestationData in roles:
@ -362,7 +422,8 @@ proc init*(t: typedesc[BeaconNodeServerRef], remote: Uri,
let server = BeaconNodeServerRef(
client: client, endpoint: $remote, index: index, roles: roles,
logIdent: client.address.hostname & ":" &
Base10.toString(client.address.port)
Base10.toString(client.address.port),
status: RestBeaconNodeStatus.Offline
)
ok(server)
@ -731,3 +792,7 @@ proc prepareRegistrationList*(
incorrect_time = timed
return registrations
proc init*(t: typedesc[ApiNodeFailure], node: BeaconNodeServerRef,
failure: ApiFailure): ApiNodeFailure =
ApiNodeFailure(node: node, failure: failure)

25
beacon_chain/validator_client/duties_service.nim
View File

@ -65,8 +65,9 @@ proc pollForValidatorIndices*(vc: ValidatorClientRef) {.async.} =
let res =
try:
await vc.getValidators(idents, ApiStrategyKind.First)
except ValidatorApiError:
error "Unable to get head state's validator information"
except ValidatorApiError as exc:
error "Unable to get head state's validator information",
reason = exc.getFailureReason()
return
except CancelledError as exc:
debug "Validator's indices processing was interrupted"
@ -138,8 +139,9 @@ proc pollForAttesterDuties*(vc: ValidatorClientRef,
let res =
try:
await vc.getAttesterDuties(epoch, indices, ApiStrategyKind.First)
except ValidatorApiError:
error "Unable to get attester duties", epoch = epoch
except ValidatorApiError as exc:
notice "Unable to get attester duties", epoch = epoch,
reason = exc.getFailureReason()
return 0
except CancelledError as exc:
debug "Attester duties processing was interrupted"
@ -271,8 +273,9 @@ proc pollForSyncCommitteeDuties*(vc: ValidatorClientRef,
res =
try:
await vc.getSyncCommitteeDuties(epoch, indices, ApiStrategyKind.First)
except ValidatorApiError:
error "Unable to get sync committee duties", epoch = epoch
except ValidatorApiError as exc:
notice "Unable to get sync committee duties", epoch = epoch,
reason = exc.getFailureReason()
return 0
except CancelledError as exc:
debug "Sync committee duties processing was interrupted"
@ -502,9 +505,9 @@ proc pollForBeaconProposers*(vc: ValidatorClientRef) {.async.} =
else:
debug "No relevant proposer duties received", slot = currentSlot,
duties_count = len(duties)
except ValidatorApiError:
debug "Unable to get proposer duties", slot = currentSlot,
epoch = currentEpoch
except ValidatorApiError as exc:
notice "Unable to get proposer duties", slot = currentSlot,
epoch = currentEpoch, reason = exc.getFailureReason()
except CancelledError as exc:
debug "Proposer duties processing was interrupted"
raise exc
@ -531,7 +534,7 @@ proc prepareBeaconProposers*(service: DutiesServiceRef) {.async.} =
except ValidatorApiError as exc:
warn "Unable to prepare beacon proposers", slot = currentSlot,
epoch = currentEpoch, err_name = exc.name,
err_msg = exc.msg
err_msg = exc.msg, reason = exc.getFailureReason()
0
except CancelledError as exc:
debug "Beacon proposer preparation processing was interrupted"
@ -575,7 +578,7 @@ proc registerValidators*(service: DutiesServiceRef) {.async.} =
except ValidatorApiError as exc:
warn "Unable to register validators", slot = currentSlot,
fork = genesisFork, err_name = exc.name,
err_msg = exc.msg
err_msg = exc.msg, reason = exc.getFailureReason()
0
except CancelledError as exc:
debug "Validator registration was interrupted", slot = currentSlot,

234
beacon_chain/validator_client/fallback_service.nim
View File

@ -12,71 +12,47 @@ const
logScope: service = ServiceName
type
BeaconNodesCounters* = object
online*: int
offline*: int
uninitalized*: int
incompatible*: int
nosync*: int
proc onlineNodes*(vc: ValidatorClientRef,
roles: set[BeaconNodeRole] = {}): seq[BeaconNodeServerRef] =
if len(roles) == 0:
vc.beaconNodes.filterIt(it.status == RestBeaconNodeStatus.Online)
else:
vc.beaconNodes.filterIt((it.roles * roles != {}) and
(it.status == RestBeaconNodeStatus.Online))
proc onlineNodesCount*(vc: ValidatorClientRef,
proc nodesCount*(vc: ValidatorClientRef,
statuses: set[RestBeaconNodeStatus],
roles: set[BeaconNodeRole] = {}): int =
if len(roles) == 0:
vc.beaconNodes.countIt(it.status == RestBeaconNodeStatus.Online)
vc.beaconNodes.countIt(it.status in statuses)
else:
vc.beaconNodes.countIt((it.roles * roles != {}) and
(it.status == RestBeaconNodeStatus.Online))
vc.beaconNodes.countIt((it.roles * roles != {}) and (it.status in statuses))
proc unusableNodes*(vc: ValidatorClientRef): seq[BeaconNodeServerRef] =
vc.beaconNodes.filterIt(it.status != RestBeaconNodeStatus.Online)
proc filterNodes*(vc: ValidatorClientRef, statuses: set[RestBeaconNodeStatus],
roles: set[BeaconNodeRole] = {}): seq[BeaconNodeServerRef] =
if len(roles) == 0:
vc.beaconNodes.filterIt(it.status in statuses)
else:
vc.beaconNodes.filterIt((it.roles * roles != {}) and
(it.status in statuses))
proc unusableNodesCount*(vc: ValidatorClientRef): int =
vc.beaconNodes.countIt(it.status != RestBeaconNodeStatus.Online)
proc otherNodes*(vc: ValidatorClientRef): seq[BeaconNodeServerRef] =
vc.beaconNodes.filterIt(it.status != RestBeaconNodeStatus.Synced)
proc getNodeCounts*(vc: ValidatorClientRef): BeaconNodesCounters =
var res = BeaconNodesCounters()
for node in vc.beaconNodes:
case node.status
of RestBeaconNodeStatus.Uninitalized:
inc(res.uninitalized)
of RestBeaconNodeStatus.Offline:
inc(res.offline)
of RestBeaconNodeStatus.Incompatible:
inc(res.incompatible)
of RestBeaconNodeStatus.NotSynced:
inc(res.nosync)
of RestBeaconNodeStatus.Online:
inc(res.online)
res
proc otherNodesCount*(vc: ValidatorClientRef): int =
vc.beaconNodes.countIt(it.status != RestBeaconNodeStatus.Synced)
proc waitOnlineNodes*(vc: ValidatorClientRef, timeoutFut: Future[void] = nil,
roles: set[BeaconNodeRole] = {}) {.async.} =
proc waitNodes*(vc: ValidatorClientRef, timeoutFut: Future[void],
statuses: set[RestBeaconNodeStatus],
roles: set[BeaconNodeRole], waitChanges: bool) {.async.} =
doAssert(not(isNil(vc.fallbackService)))
var iterations = 0
while true:
if vc.onlineNodesCount(roles) != 0:
if not(waitChanges) or (iterations != 0):
if vc.nodesCount(statuses, roles) != 0:
break
else:
if vc.fallbackService.onlineEvent.isSet():
vc.fallbackService.onlineEvent.clear()
warn "Connection with beacon node(s) has been lost",
online_nodes = vc.onlineNodesCount(),
unusable_nodes = vc.unusableNodesCount(),
total_nodes = len(vc.beaconNodes)
if vc.fallbackService.changesEvent.isSet():
vc.fallbackService.changesEvent.clear()
if isNil(timeoutFut):
await vc.fallbackService.onlineEvent.wait()
await vc.fallbackService.changesEvent.wait()
else:
let breakLoop =
block:
let waitFut = vc.fallbackService.onlineEvent.wait()
let waitFut = vc.fallbackService.changesEvent.wait()
try:
discard await race(waitFut, timeoutFut)
except CancelledError as exc:
@ -92,8 +68,12 @@ proc waitOnlineNodes*(vc: ValidatorClientRef, timeoutFut: Future[void] = nil,
if breakLoop:
break
proc checkCompatible(vc: ValidatorClientRef,
node: BeaconNodeServerRef) {.async.} =
inc(iterations)
proc checkCompatible(
vc: ValidatorClientRef,
node: BeaconNodeServerRef
): Future[RestBeaconNodeStatus] {.async.} =
logScope: endpoint = node
let info =
try:
@ -102,18 +82,17 @@ proc checkCompatible(vc: ValidatorClientRef,
res.data.data
except CancelledError as exc:
debug "Configuration request was interrupted"
node.status = RestBeaconNodeStatus.Offline
raise exc
except RestError as exc:
if node.status != RestBeaconNodeStatus.Offline:
debug "Unable to obtain beacon node's configuration",
error_name = exc.name, error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
return RestBeaconNodeStatus.Offline
except CatchableError as exc:
if node.status != RestBeaconNodeStatus.Offline:
error "Unexpected exception", error_name = exc.name,
error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
return RestBeaconNodeStatus.Offline
let genesis =
try:
@ -122,18 +101,17 @@ proc checkCompatible(vc: ValidatorClientRef,
res.data.data
except CancelledError as exc:
debug "Genesis request was interrupted"
node.status = RestBeaconNodeStatus.Offline
raise exc
except RestError as exc:
if node.status != RestBeaconNodeStatus.Offline:
debug "Unable to obtain beacon node's genesis",
error_name = exc.name, error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
return RestBeaconNodeStatus.Offline
except CatchableError as exc:
if node.status != RestBeaconNodeStatus.Offline:
error "Unexpected exception", error_name = exc.name,
error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
return RestBeaconNodeStatus.Offline
let genesisFlag = (genesis != vc.beaconGenesis)
let configFlag =
@ -160,18 +138,24 @@ proc checkCompatible(vc: ValidatorClientRef,
info.DOMAIN_SELECTION_PROOF != DOMAIN_SELECTION_PROOF or
info.DOMAIN_AGGREGATE_AND_PROOF != DOMAIN_AGGREGATE_AND_PROOF
let res =
if configFlag or genesisFlag:
node.status = RestBeaconNodeStatus.Incompatible
if node.status != RestBeaconNodeStatus.Incompatible:
warn "Beacon node has incompatible configuration",
genesis_flag = genesisFlag, config_flag = configFlag
RestBeaconNodeStatus.Incompatible
else:
info "Beacon node has compatible configuration"
if node.status != RestBeaconNodeStatus.Compatible:
debug "Beacon node has compatible configuration"
node.config = some(info)
node.genesis = some(genesis)
node.status = RestBeaconNodeStatus.Online
RestBeaconNodeStatus.Compatible
return res
proc checkSync(vc: ValidatorClientRef,
node: BeaconNodeServerRef) {.async.} =
proc checkSync(
vc: ValidatorClientRef,
node: BeaconNodeServerRef
): Future[RestBeaconNodeStatus] {.async.} =
logScope: endpoint = node
let syncInfo =
try:
@ -180,20 +164,19 @@ proc checkSync(vc: ValidatorClientRef,
res.data.data
except CancelledError as exc:
debug "Sync status request was interrupted"
node.status = RestBeaconNodeStatus.Offline
raise exc
except RestError as exc:
if node.status != RestBeaconNodeStatus.Offline:
debug "Unable to obtain beacon node's sync status",
error_name = exc.name, error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
return RestBeaconNodeStatus.Offline
except CatchableError as exc:
if node.status != RestBeaconNodeStatus.Offline:
error "Unexpected exception", error_name = exc.name,
error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
return RestBeaconNodeStatus.Offline
node.syncInfo = some(syncInfo)
node.status =
let res =
block:
let optimistic =
if syncInfo.is_optimistic.isNone():
@ -203,20 +186,29 @@ proc checkSync(vc: ValidatorClientRef,
if not(syncInfo.is_syncing) or (syncInfo.sync_distance < SYNC_TOLERANCE):
if not(syncInfo.is_optimistic.get(false)):
info "Beacon node is in sync", sync_distance = syncInfo.sync_distance,
if node.status != RestBeaconNodeStatus.Synced:
info "Beacon node is in sync",
sync_distance = syncInfo.sync_distance,
head_slot = syncInfo.head_slot, is_optimistic = optimistic
RestBeaconNodeStatus.Online
RestBeaconNodeStatus.Synced
else:
warn "Execution client not in sync (beacon node optimistically synced)",
if node.status != RestBeaconNodeStatus.OptSynced:
info "Execution client not in sync " &
"(beacon node optimistically synced)",
sync_distance = syncInfo.sync_distance,
head_slot = syncInfo.head_slot, is_optimistic = optimistic
RestBeaconNodeStatus.OptSynced
else:
if node.status != RestBeaconNodeStatus.NotSynced:
warn "Beacon node not in sync",
sync_distance = syncInfo.sync_distance,
head_slot = syncInfo.head_slot, is_optimistic = optimistic
RestBeaconNodeStatus.NotSynced
else:
warn "Beacon node not in sync", sync_distance = syncInfo.sync_distance,
head_slot = syncInfo.head_slot, is_optimistic = optimistic
RestBeaconNodeStatus.NotSynced
return res
proc checkOnline(node: BeaconNodeServerRef) {.async.} =
proc checkOnline(
node: BeaconNodeServerRef
): Future[RestBeaconNodeStatus] {.async.} =
logScope: endpoint = node
debug "Checking beacon node status"
let agent =
@ -225,40 +217,60 @@ proc checkOnline(node: BeaconNodeServerRef) {.async.} =
res.data.data
except CancelledError as exc:
debug "Status request was interrupted"
node.status = RestBeaconNodeStatus.Offline
raise exc
except RestError as exc:
if node.status != RestBeaconNodeStatus.Offline:
debug "Unable to check beacon node's status",
error_name = exc.name, error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
return RestBeaconNodeStatus.Offline
except CatchableError as exc:
if node.status != RestBeaconNodeStatus.Offline:
error "Unexpected exception", error_name = exc.name,
error_message = exc.msg
node.status = RestBeaconNodeStatus.Offline
return
info "Beacon node has been identified", agent = agent.version
node.ident = some(agent.version)
node.status = RestBeaconNodeStatus.Online
return RestBeaconNodeStatus.Offline
if node.status != RestBeaconNodeStatus.Online:
debug "Beacon node has been identified", agent = agent.version
return RestBeaconNodeStatus.Online
proc checkNode(vc: ValidatorClientRef,
node: BeaconNodeServerRef) {.async.} =
debug "Checking beacon node", endpoint = node
await node.checkOnline()
if node.status != RestBeaconNodeStatus.Online:
return
await vc.checkCompatible(node)
if node.status != RestBeaconNodeStatus.Online:
return
await vc.checkSync(node)
node: BeaconNodeServerRef): Future[bool] {.async.} =
let nstatus = node.status
debug "Checking beacon node", endpoint = node, status = node.status
proc checkNodes*(service: FallbackServiceRef) {.async.} =
if nstatus in {RestBeaconNodeStatus.Offline}:
let status = await node.checkOnline()
node.status = status
if status != RestBeaconNodeStatus.Online:
return nstatus != status
if nstatus in {RestBeaconNodeStatus.Offline,
RestBeaconNodeStatus.Online,
RestBeaconNodeStatus.Incompatible}:
let status = await vc.checkCompatible(node)
node.status = status
if status != RestBeaconNodeStatus.Compatible:
return nstatus != status
if nstatus in {RestBeaconNodeStatus.Offline,
RestBeaconNodeStatus.Online,
RestBeaconNodeStatus.Incompatible,
RestBeaconNodeStatus.Compatible,
RestBeaconNodeStatus.OptSynced,
RestBeaconNodeStatus.NotSynced}:
let status = await vc.checkSync(node)
node.status = status
return nstatus != status
proc checkNodes*(service: FallbackServiceRef): Future[bool] {.async.} =
let
nodesToCheck = service.client.unusableNodes()
nodesToCheck = service.client.otherNodes()
pendingChecks = nodesToCheck.mapIt(service.client.checkNode(it))
var res = false
try:
await allFutures(pendingChecks)
for fut in pendingChecks:
if fut.completed() and fut.read():
res = true
except CancelledError as exc:
var pending: seq[Future[void]]
for future in pendingChecks:
@ -266,6 +278,7 @@ proc checkNodes*(service: FallbackServiceRef) {.async.} =
pending.add(future.cancelAndWait())
await allFutures(pending)
raise exc
return res
proc mainLoop(service: FallbackServiceRef) {.async.} =
let vc = service.client
@ -278,19 +291,8 @@ proc mainLoop(service: FallbackServiceRef) {.async.} =
# become safe to combine loops, breaks and exception handlers.
let breakLoop =
try:
await service.checkNodes()
if await service.checkNodes(): service.changesEvent.fire()
await sleepAsync(2.seconds)
if service.client.onlineNodesCount() != 0:
service.onlineEvent.fire()
else:
let counter = vc.getNodeCounts()
warn "No suitable beacon nodes available",
online_nodes = counter.online,
offline_nodes = counter.offline,
uninitalized_nodes = counter.uninitalized,
incompatible_nodes = counter.incompatible,
nonsynced_nodes = counter.nosync,
total_nodes = len(vc.beaconNodes)
false
except CancelledError as exc:
debug "Service interrupted"
@ -308,10 +310,10 @@ proc init*(t: typedesc[FallbackServiceRef],
logScope: service = ServiceName
var res = FallbackServiceRef(name: ServiceName, client: vc,
state: ServiceState.Initialized,
onlineEvent: newAsyncEvent())
changesEvent: newAsyncEvent())
debug "Initializing service"
# Perform initial nodes check.
await res.checkNodes()
if await res.checkNodes(): res.changesEvent.fire()
return res
proc start*(service: FallbackServiceRef) =

3
beacon_chain/validator_client/fork_service.nim
View File

@ -53,7 +53,8 @@ proc pollForFork(vc: ValidatorClientRef) {.async.} =
try:
await vc.getForkSchedule(ApiStrategyKind.Best)
except ValidatorApiError as exc:
error "Unable to retrieve fork schedule", reason = exc.msg
error "Unable to retrieve fork schedule",
reason = exc.getFailureReason(), err_msg = exc.msg
return
except CancelledError as exc:
debug "Fork retrieval process was interrupted"

26
beacon_chain/validator_client/sync_committee_service.nim
View File

@ -57,11 +57,12 @@ proc serveSyncCommitteeMessage*(service: SyncCommitteeServiceRef,
let res =
try:
await vc.submitPoolSyncCommitteeSignature(message, ApiStrategyKind.First)
except ValidatorApiError:
except ValidatorApiError as exc:
error "Unable to publish sync committee message",
message = shortLog(message),
validator = shortLog(validator),
validator_index = vindex
validator_index = vindex,
reason = exc.getFailureReason()
return false
except CancelledError:
debug "Publish sync committee message request was interrupted"
@ -171,12 +172,13 @@ proc serveContributionAndProof*(service: SyncCommitteeServiceRef,
try:
await vc.publishContributionAndProofs(@[restSignedProof],
ApiStrategyKind.First)
except ValidatorApiError as err:
except ValidatorApiError as exc:
error "Unable to publish sync contribution",
contribution = shortLog(proof.contribution),
validator = shortLog(validator),
validator_index = validatorIdx,
err_msg = err.msg
err_msg = exc.msg,
reason = exc.getFailureReason()
false
except CancelledError:
debug "Publish sync contribution request was interrupted"
@ -278,9 +280,10 @@ proc produceAndPublishContributions(service: SyncCommitteeServiceRef,
let aggContribution =
try:
await contributionsFuts[item.subcommitteeIdx]
except ValidatorApiError:
except ValidatorApiError as exc:
error "Unable to get sync message contribution data", slot = slot,
beaconBlockRoot = shortLog(beaconBlockRoot)
beaconBlockRoot = shortLog(beaconBlockRoot),
reason = exc.getFailureReason()
return
except CancelledError:
debug "Request for sync message contribution was interrupted"
@ -357,12 +360,13 @@ proc publishSyncMessagesAndContributions(service: SyncCommitteeServiceRef,
res.data.root
else:
if res.execution_optimistic.get():
error "Could not obtain head block's root because beacon node " &
"only optimistically synced", slot = slot
notice "Execution client not in sync; skipping validator duties " &
"for now", slot = slot
return
res.data.root
except ValidatorApiError as exc:
error "Unable to retrieve head block's root to sign", reason = exc.msg
error "Unable to retrieve head block's root to sign", reason = exc.msg,
reason = exc.getFailureReason()
return
except CancelledError:
debug "Block root request was interrupted"
@ -376,9 +380,9 @@ proc publishSyncMessagesAndContributions(service: SyncCommitteeServiceRef,
await service.produceAndPublishSyncCommitteeMessages(slot,
beaconBlockRoot,
duties)
except ValidatorApiError:
except ValidatorApiError as exc:
error "Unable to proceed sync committee messages", slot = slot,
duties_count = len(duties)
duties_count = len(duties), reason = exc.getFailureReason()
return
except CancelledError:
debug "Sync committee producing process was interrupted"