nimbus-eth2/beacon_chain/validator_client/fork_service.nim

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import std/algorithm
New validator client using REST API. (#2651) * Initial commit. * Exporting getConfig(). * Add beacon node checking procedures. * Post rebase fixes. * Use runSlotLoop() from nimbus_beacon_node. Fallback implementation. Fixes for ETH2 REST serialization. * Add beacon_clock.durationToNextSlot(). Move type declarations from beacon_rest_api to json_rest_serialization. Fix seq[ValidatorIndex] serialization. Refactor ValidatorPool and add some utility procedures. Create separate version of validator_client. * Post-rebase fixes. Remove CookedPubKey from validator_pool.nim. * Now we should be able to produce attestations and aggregate and proofs. But its not working yet. * Debugging attestation sending. * Add durationToNextAttestation. Optimize some debug logs. Fix aggregation_bits encoding. Bump chronos/presto. * Its alive. * Fixes for launch_local_testnet script. Bump chronos. * Switch client API to not use `/api` prefix. * Post-rebase adjustments. * Fix endpoint for publishBlock(). * Add CONFIG_NAME. Add more checks to ensure that beacon_node is compatible. * Add beacon committee subscription support to validator_client. * Fix stacktrace should be an array of strings. Fix committee subscriptions should not be `data` keyed. * Log duration to next block proposal. * Fix beacon_node_status import. * Use jsonMsgResponse() instead of jsonError(). * Fix graffityBytes usage. Remove unnecessary `await`. Adjust creation of SignedBlock instance. Remove legacy files. * Rework durationToNextSlot() and durationToNextEpoch() to use `fromNow`. * Fix race condition for block proposal and attestations for same slot. Fix local_testnet script to properly kill tasks on Windows. Bump chronos and nim-http-tools, to allow connections to infura.io (basic auth). * Catch services errors. Improve performance of local_testnet.sh script on Windows. Fix race condition when attestation producing. * Post-rebase fixes. * Bump chronos and presto. * Calculate block publishing delay. Fix pkill in one more place. * Add error handling and timeouts to firstSuccess() template. Add onceToAll() template. Add checkNodes() procedure. Refactor firstSuccess() template. Add error checking to api.nim calls. * Deprecated usage onceToAll() for better stability. Address comment and send attestations asap. * Avoid unnecessary loop when calculating minimal duration.
2021-07-13 11:15:07 +00:00
import chronicles
import common, api
New validator client using REST API. (#2651) * Initial commit. * Exporting getConfig(). * Add beacon node checking procedures. * Post rebase fixes. * Use runSlotLoop() from nimbus_beacon_node. Fallback implementation. Fixes for ETH2 REST serialization. * Add beacon_clock.durationToNextSlot(). Move type declarations from beacon_rest_api to json_rest_serialization. Fix seq[ValidatorIndex] serialization. Refactor ValidatorPool and add some utility procedures. Create separate version of validator_client. * Post-rebase fixes. Remove CookedPubKey from validator_pool.nim. * Now we should be able to produce attestations and aggregate and proofs. But its not working yet. * Debugging attestation sending. * Add durationToNextAttestation. Optimize some debug logs. Fix aggregation_bits encoding. Bump chronos/presto. * Its alive. * Fixes for launch_local_testnet script. Bump chronos. * Switch client API to not use `/api` prefix. * Post-rebase adjustments. * Fix endpoint for publishBlock(). * Add CONFIG_NAME. Add more checks to ensure that beacon_node is compatible. * Add beacon committee subscription support to validator_client. * Fix stacktrace should be an array of strings. Fix committee subscriptions should not be `data` keyed. * Log duration to next block proposal. * Fix beacon_node_status import. * Use jsonMsgResponse() instead of jsonError(). * Fix graffityBytes usage. Remove unnecessary `await`. Adjust creation of SignedBlock instance. Remove legacy files. * Rework durationToNextSlot() and durationToNextEpoch() to use `fromNow`. * Fix race condition for block proposal and attestations for same slot. Fix local_testnet script to properly kill tasks on Windows. Bump chronos and nim-http-tools, to allow connections to infura.io (basic auth). * Catch services errors. Improve performance of local_testnet.sh script on Windows. Fix race condition when attestation producing. * Post-rebase fixes. * Bump chronos and presto. * Calculate block publishing delay. Fix pkill in one more place. * Add error handling and timeouts to firstSuccess() template. Add onceToAll() template. Add checkNodes() procedure. Refactor firstSuccess() template. Add error checking to api.nim calls. * Deprecated usage onceToAll() for better stability. Address comment and send attestations asap. * Avoid unnecessary loop when calculating minimal duration.
2021-07-13 11:15:07 +00:00
logScope: service = "fork_service"
proc validateForkSchedule(forks: openArray[Fork]): bool {.raises: [Defect].} =
# Check if `forks` list is linked list.
var current_version = forks[0].current_version
for index, item in forks:
if index > 0:
if item.previous_version != current_version:
return false
else:
if item.previous_version != item.current_version:
return false
current_version = item.current_version
true
proc sortForks(forks: openArray[Fork]): Result[seq[Fork], cstring] {.
raises: [Defect].} =
proc cmp(x, y: Fork): int {.closure.} =
if uint64(x.epoch) == uint64(y.epoch): return 0
if uint64(x.epoch) < uint64(y.epoch): return -1
return 1
if len(forks) == 0:
return err("Empty fork schedule")
let sortedForks = sorted(forks, cmp)
if not(validateForkSchedule(sortedForks)):
return err("Invalid fork schedule")
ok(sortedForks)
New validator client using REST API. (#2651) * Initial commit. * Exporting getConfig(). * Add beacon node checking procedures. * Post rebase fixes. * Use runSlotLoop() from nimbus_beacon_node. Fallback implementation. Fixes for ETH2 REST serialization. * Add beacon_clock.durationToNextSlot(). Move type declarations from beacon_rest_api to json_rest_serialization. Fix seq[ValidatorIndex] serialization. Refactor ValidatorPool and add some utility procedures. Create separate version of validator_client. * Post-rebase fixes. Remove CookedPubKey from validator_pool.nim. * Now we should be able to produce attestations and aggregate and proofs. But its not working yet. * Debugging attestation sending. * Add durationToNextAttestation. Optimize some debug logs. Fix aggregation_bits encoding. Bump chronos/presto. * Its alive. * Fixes for launch_local_testnet script. Bump chronos. * Switch client API to not use `/api` prefix. * Post-rebase adjustments. * Fix endpoint for publishBlock(). * Add CONFIG_NAME. Add more checks to ensure that beacon_node is compatible. * Add beacon committee subscription support to validator_client. * Fix stacktrace should be an array of strings. Fix committee subscriptions should not be `data` keyed. * Log duration to next block proposal. * Fix beacon_node_status import. * Use jsonMsgResponse() instead of jsonError(). * Fix graffityBytes usage. Remove unnecessary `await`. Adjust creation of SignedBlock instance. Remove legacy files. * Rework durationToNextSlot() and durationToNextEpoch() to use `fromNow`. * Fix race condition for block proposal and attestations for same slot. Fix local_testnet script to properly kill tasks on Windows. Bump chronos and nim-http-tools, to allow connections to infura.io (basic auth). * Catch services errors. Improve performance of local_testnet.sh script on Windows. Fix race condition when attestation producing. * Post-rebase fixes. * Bump chronos and presto. * Calculate block publishing delay. Fix pkill in one more place. * Add error handling and timeouts to firstSuccess() template. Add onceToAll() template. Add checkNodes() procedure. Refactor firstSuccess() template. Add error checking to api.nim calls. * Deprecated usage onceToAll() for better stability. Address comment and send attestations asap. * Avoid unnecessary loop when calculating minimal duration.
2021-07-13 11:15:07 +00:00
proc pollForFork(vc: ValidatorClientRef) {.async.} =
let sres = vc.getCurrentSlot()
if sres.isSome():
let
currentSlot = sres.get()
currentEpoch = currentSlot.epoch()
let forks =
try:
await vc.getForkSchedule()
except ValidatorApiError as exc:
error "Unable to retrieve fork schedule", reason = exc.msg
return
except CatchableError as exc:
error "Unexpected error occured while getting fork information",
err_name = exc.name, err_msg = exc.msg
return
let sortedForks =
block:
let res = sortForks(forks)
if res.isErr():
error "Invalid fork schedule received", reason = res.error()
return
res.get()
if (len(vc.forks) == 0) or (vc.forks != sortedForks):
vc.forks = sortedForks
notice "Fork schedule updated", fork_schedule = sortedForks
vc.forksAvailable.fire()
New validator client using REST API. (#2651) * Initial commit. * Exporting getConfig(). * Add beacon node checking procedures. * Post rebase fixes. * Use runSlotLoop() from nimbus_beacon_node. Fallback implementation. Fixes for ETH2 REST serialization. * Add beacon_clock.durationToNextSlot(). Move type declarations from beacon_rest_api to json_rest_serialization. Fix seq[ValidatorIndex] serialization. Refactor ValidatorPool and add some utility procedures. Create separate version of validator_client. * Post-rebase fixes. Remove CookedPubKey from validator_pool.nim. * Now we should be able to produce attestations and aggregate and proofs. But its not working yet. * Debugging attestation sending. * Add durationToNextAttestation. Optimize some debug logs. Fix aggregation_bits encoding. Bump chronos/presto. * Its alive. * Fixes for launch_local_testnet script. Bump chronos. * Switch client API to not use `/api` prefix. * Post-rebase adjustments. * Fix endpoint for publishBlock(). * Add CONFIG_NAME. Add more checks to ensure that beacon_node is compatible. * Add beacon committee subscription support to validator_client. * Fix stacktrace should be an array of strings. Fix committee subscriptions should not be `data` keyed. * Log duration to next block proposal. * Fix beacon_node_status import. * Use jsonMsgResponse() instead of jsonError(). * Fix graffityBytes usage. Remove unnecessary `await`. Adjust creation of SignedBlock instance. Remove legacy files. * Rework durationToNextSlot() and durationToNextEpoch() to use `fromNow`. * Fix race condition for block proposal and attestations for same slot. Fix local_testnet script to properly kill tasks on Windows. Bump chronos and nim-http-tools, to allow connections to infura.io (basic auth). * Catch services errors. Improve performance of local_testnet.sh script on Windows. Fix race condition when attestation producing. * Post-rebase fixes. * Bump chronos and presto. * Calculate block publishing delay. Fix pkill in one more place. * Add error handling and timeouts to firstSuccess() template. Add onceToAll() template. Add checkNodes() procedure. Refactor firstSuccess() template. Add error checking to api.nim calls. * Deprecated usage onceToAll() for better stability. Address comment and send attestations asap. * Avoid unnecessary loop when calculating minimal duration.
2021-07-13 11:15:07 +00:00
proc waitForNextEpoch(service: ForkServiceRef) {.async.} =
let vc = service.client
let sleepTime = vc.beaconClock.durationToNextEpoch() + TIME_DELAY_FROM_SLOT
debug "Sleeping until next epoch", sleep_time = sleepTime
await sleepAsync(sleepTime)
proc mainLoop(service: ForkServiceRef) {.async.} =
service.state = ServiceState.Running
let vc = service.client
debug "Service started"
try:
while true:
await vc.pollForFork()
await service.waitForNextEpoch()
except CatchableError as exc:
warn "Service crashed with unexpected error", err_name = exc.name,
err_msg = exc.msg
proc init*(t: typedesc[ForkServiceRef],
vc: ValidatorClientRef): Future[ForkServiceRef] {.async.} =
debug "Initializing service"
var res = ForkServiceRef(client: vc, state: ServiceState.Initialized)
await vc.pollForFork()
return res
proc start*(service: ForkServiceRef) =
service.lifeFut = mainLoop(service)