936 lines
33 KiB
Nim
936 lines
33 KiB
Nim
# beacon_chain
|
|
# Copyright (c) 2018-2024 Status Research & Development GmbH
|
|
# Licensed and distributed under either of
|
|
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
|
|
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
|
|
# at your option. This file may not be copied, modified, or distributed except according to those terms.
|
|
|
|
{.push raises: [].}
|
|
|
|
import std/[strutils, sequtils, algorithm]
|
|
import stew/base10, chronos, chronicles, results
|
|
import
|
|
../spec/datatypes/[phase0, altair],
|
|
../spec/eth2_apis/rest_types,
|
|
../spec/[helpers, forks, network],
|
|
../networking/[peer_pool, peer_scores, eth2_network],
|
|
../gossip_processing/block_processor,
|
|
../beacon_clock,
|
|
"."/[sync_protocol, sync_queue]
|
|
|
|
export phase0, altair, merge, chronos, chronicles, results,
|
|
helpers, peer_scores, sync_queue, forks, sync_protocol
|
|
|
|
logScope:
|
|
topics = "syncman"
|
|
|
|
const
|
|
SyncWorkersCount* = 10
|
|
## Number of sync workers to spawn
|
|
|
|
StatusUpdateInterval* = chronos.minutes(1)
|
|
## Minimum time between two subsequent calls to update peer's status
|
|
|
|
StatusExpirationTime* = chronos.minutes(2)
|
|
## Time time it takes for the peer's status information to expire.
|
|
|
|
WeakSubjectivityLogMessage* =
|
|
"Database state missing or too old, cannot sync - resync the client " &
|
|
"using a trusted node or allow lenient long-range syncing with the " &
|
|
"`--long-range-sync=lenient` option. See " &
|
|
"https://nimbus.guide/faq.html#what-is-long-range-sync " &
|
|
"for more information"
|
|
|
|
type
|
|
SyncWorkerStatus* {.pure.} = enum
|
|
Sleeping, WaitingPeer, UpdatingStatus, Requesting, Downloading, Queueing,
|
|
Processing
|
|
|
|
SyncManagerFlag* {.pure.} = enum
|
|
NoMonitor, NoGenesisSync
|
|
|
|
SyncWorker*[A, B] = object
|
|
future: Future[void].Raising([CancelledError])
|
|
status: SyncWorkerStatus
|
|
|
|
SyncManager*[A, B] = ref object
|
|
pool: PeerPool[A, B]
|
|
DENEB_FORK_EPOCH: Epoch
|
|
MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: uint64
|
|
responseTimeout: chronos.Duration
|
|
maxHeadAge: uint64
|
|
isWithinWeakSubjectivityPeriod: GetBoolCallback
|
|
getLocalHeadSlot: GetSlotCallback
|
|
getLocalWallSlot: GetSlotCallback
|
|
getSafeSlot: GetSlotCallback
|
|
getFirstSlot: GetSlotCallback
|
|
getLastSlot: GetSlotCallback
|
|
progressPivot: Slot
|
|
workers: array[SyncWorkersCount, SyncWorker[A, B]]
|
|
notInSyncEvent: AsyncEvent
|
|
shutdownEvent: AsyncEvent
|
|
rangeAge: uint64
|
|
chunkSize: uint64
|
|
queue: SyncQueue[A]
|
|
syncFut: Future[void].Raising([CancelledError])
|
|
blockVerifier: BlockVerifier
|
|
inProgress*: bool
|
|
insSyncSpeed*: float
|
|
avgSyncSpeed*: float
|
|
syncStatus*: string
|
|
direction: SyncQueueKind
|
|
ident*: string
|
|
flags: set[SyncManagerFlag]
|
|
|
|
SyncMoment* = object
|
|
stamp*: chronos.Moment
|
|
slots*: uint64
|
|
|
|
BeaconBlocksRes =
|
|
NetRes[List[ref ForkedSignedBeaconBlock, Limit MAX_REQUEST_BLOCKS]]
|
|
BlobSidecarsRes =
|
|
NetRes[List[ref BlobSidecar, Limit(MAX_REQUEST_BLOB_SIDECARS)]]
|
|
|
|
SyncBlockData* = object
|
|
blocks*: seq[ref ForkedSignedBeaconBlock]
|
|
blobs*: Opt[seq[BlobSidecars]]
|
|
|
|
SyncBlockDataRes* = Result[SyncBlockData, string]
|
|
|
|
proc now*(sm: typedesc[SyncMoment], slots: uint64): SyncMoment {.inline.} =
|
|
SyncMoment(stamp: now(chronos.Moment), slots: slots)
|
|
|
|
proc speed*(start, finish: SyncMoment): float {.inline.} =
|
|
## Returns number of slots per second.
|
|
if finish.slots <= start.slots or finish.stamp <= start.stamp:
|
|
0.0 # replays for example
|
|
else:
|
|
let
|
|
slots = float(finish.slots - start.slots)
|
|
dur = toFloatSeconds(finish.stamp - start.stamp)
|
|
slots / dur
|
|
|
|
proc initQueue[A, B](man: SyncManager[A, B]) =
|
|
case man.direction
|
|
of SyncQueueKind.Forward:
|
|
man.queue = SyncQueue.init(A, man.direction, man.getFirstSlot(),
|
|
man.getLastSlot(), man.chunkSize,
|
|
man.getSafeSlot, man.blockVerifier,
|
|
1, man.ident)
|
|
of SyncQueueKind.Backward:
|
|
let
|
|
firstSlot = man.getFirstSlot()
|
|
lastSlot = man.getLastSlot()
|
|
startSlot = if firstSlot == lastSlot:
|
|
# This case should never be happened in real life because
|
|
# there is present check `needsBackfill().
|
|
firstSlot
|
|
else:
|
|
firstSlot - 1'u64
|
|
man.queue = SyncQueue.init(A, man.direction, startSlot, lastSlot,
|
|
man.chunkSize, man.getSafeSlot,
|
|
man.blockVerifier, 1, man.ident)
|
|
|
|
proc newSyncManager*[A, B](pool: PeerPool[A, B],
|
|
denebEpoch: Epoch,
|
|
minEpochsForBlobSidecarsRequests: uint64,
|
|
direction: SyncQueueKind,
|
|
getLocalHeadSlotCb: GetSlotCallback,
|
|
getLocalWallSlotCb: GetSlotCallback,
|
|
getFinalizedSlotCb: GetSlotCallback,
|
|
getBackfillSlotCb: GetSlotCallback,
|
|
getFrontfillSlotCb: GetSlotCallback,
|
|
weakSubjectivityPeriodCb: GetBoolCallback,
|
|
progressPivot: Slot,
|
|
blockVerifier: BlockVerifier,
|
|
shutdownEvent: AsyncEvent,
|
|
maxHeadAge = uint64(SLOTS_PER_EPOCH * 1),
|
|
chunkSize = uint64(SLOTS_PER_EPOCH),
|
|
flags: set[SyncManagerFlag] = {},
|
|
ident = "main"
|
|
): SyncManager[A, B] =
|
|
let (getFirstSlot, getLastSlot, getSafeSlot) = case direction
|
|
of SyncQueueKind.Forward:
|
|
(getLocalHeadSlotCb, getLocalWallSlotCb, getFinalizedSlotCb)
|
|
of SyncQueueKind.Backward:
|
|
(getBackfillSlotCb, getFrontfillSlotCb, getBackfillSlotCb)
|
|
|
|
var res = SyncManager[A, B](
|
|
pool: pool,
|
|
DENEB_FORK_EPOCH: denebEpoch,
|
|
MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS: minEpochsForBlobSidecarsRequests,
|
|
getLocalHeadSlot: getLocalHeadSlotCb,
|
|
getLocalWallSlot: getLocalWallSlotCb,
|
|
isWithinWeakSubjectivityPeriod: weakSubjectivityPeriodCb,
|
|
getSafeSlot: getSafeSlot,
|
|
getFirstSlot: getFirstSlot,
|
|
getLastSlot: getLastSlot,
|
|
progressPivot: progressPivot,
|
|
maxHeadAge: maxHeadAge,
|
|
chunkSize: chunkSize,
|
|
blockVerifier: blockVerifier,
|
|
notInSyncEvent: newAsyncEvent(),
|
|
direction: direction,
|
|
shutdownEvent: shutdownEvent,
|
|
ident: ident,
|
|
flags: flags
|
|
)
|
|
res.initQueue()
|
|
res
|
|
|
|
proc getBlocks[A, B](man: SyncManager[A, B], peer: A,
|
|
req: SyncRequest[A]): Future[BeaconBlocksRes] {.
|
|
async: (raises: [CancelledError], raw: true).} =
|
|
mixin getScore, `==`
|
|
|
|
logScope:
|
|
peer_score = peer.getScore()
|
|
peer_speed = peer.netKbps()
|
|
sync_ident = man.ident
|
|
direction = man.direction
|
|
topics = "syncman"
|
|
|
|
doAssert(not(req.isEmpty()), "Request must not be empty!")
|
|
debug "Requesting blocks from peer", request = req
|
|
|
|
beaconBlocksByRange_v2(peer, req.slot, req.count, 1'u64)
|
|
|
|
proc shouldGetBlobs[A, B](man: SyncManager[A, B], s: Slot): bool =
|
|
let
|
|
wallEpoch = man.getLocalWallSlot().epoch
|
|
epoch = s.epoch()
|
|
(epoch >= man.DENEB_FORK_EPOCH) and
|
|
(wallEpoch < man.MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS or
|
|
epoch >= wallEpoch - man.MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS)
|
|
|
|
proc shouldGetBlobs[A, B](man: SyncManager[A, B], r: SyncRequest[A]): bool =
|
|
man.shouldGetBlobs(r.slot) or man.shouldGetBlobs(r.slot + (r.count - 1))
|
|
|
|
proc getBlobSidecars[A, B](man: SyncManager[A, B], peer: A,
|
|
req: SyncRequest[A]): Future[BlobSidecarsRes]
|
|
{.async: (raises: [CancelledError], raw: true).} =
|
|
mixin getScore, `==`
|
|
|
|
logScope:
|
|
peer_score = peer.getScore()
|
|
peer_speed = peer.netKbps()
|
|
sync_ident = man.ident
|
|
direction = man.direction
|
|
topics = "syncman"
|
|
|
|
doAssert(not(req.isEmpty()), "Request must not be empty!")
|
|
debug "Requesting blobs sidecars from peer", request = req
|
|
blobSidecarsByRange(peer, req.slot, req.count)
|
|
|
|
proc remainingSlots(man: SyncManager): uint64 =
|
|
let
|
|
first = man.getFirstSlot()
|
|
last = man.getLastSlot()
|
|
if man.direction == SyncQueueKind.Forward:
|
|
if last > first:
|
|
man.getLastSlot() - man.getFirstSlot()
|
|
else:
|
|
0'u64
|
|
else:
|
|
if first > last:
|
|
man.getFirstSlot() - man.getLastSlot()
|
|
else:
|
|
0'u64
|
|
|
|
func groupBlobs*(
|
|
blocks: seq[ref ForkedSignedBeaconBlock],
|
|
blobs: seq[ref BlobSidecar]
|
|
): Result[seq[BlobSidecars], string] =
|
|
var
|
|
grouped = newSeq[BlobSidecars](len(blocks))
|
|
blob_cursor = 0
|
|
for block_idx, blck in blocks:
|
|
withBlck(blck[]):
|
|
when consensusFork >= ConsensusFork.Deneb:
|
|
template kzgs: untyped = forkyBlck.message.body.blob_kzg_commitments
|
|
if kzgs.len == 0:
|
|
continue
|
|
# Clients MUST include all blob sidecars of each block from which they include blob sidecars.
|
|
# The following blob sidecars, where they exist, MUST be sent in consecutive (slot, index) order.
|
|
# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/p2p-interface.md#blobsidecarsbyrange-v1
|
|
let header = forkyBlck.toSignedBeaconBlockHeader()
|
|
for blob_idx, kzg_commitment in kzgs:
|
|
if blob_cursor >= blobs.len:
|
|
return err("BlobSidecar: response too short")
|
|
let blob_sidecar = blobs[blob_cursor]
|
|
if blob_sidecar.index != BlobIndex blob_idx:
|
|
return err("BlobSidecar: unexpected index")
|
|
if blob_sidecar.kzg_commitment != kzg_commitment:
|
|
return err("BlobSidecar: unexpected kzg_commitment")
|
|
if blob_sidecar.signed_block_header != header:
|
|
return err("BlobSidecar: unexpected signed_block_header")
|
|
grouped[block_idx].add(blob_sidecar)
|
|
inc blob_cursor
|
|
|
|
if blob_cursor != len(blobs):
|
|
# we reached end of blocks without consuming all blobs so either
|
|
# the peer we got too few blocks in the paired request, or the
|
|
# peer is sending us spurious blobs.
|
|
Result[seq[BlobSidecars], string].err "invalid block or blob sequence"
|
|
else:
|
|
Result[seq[BlobSidecars], string].ok grouped
|
|
|
|
func checkBlobs(blobs: seq[BlobSidecars]): Result[void, string] =
|
|
for blob_sidecars in blobs:
|
|
for blob_sidecar in blob_sidecars:
|
|
? blob_sidecar[].verify_blob_sidecar_inclusion_proof()
|
|
ok()
|
|
|
|
proc getSyncBlockData*[T](
|
|
peer: T,
|
|
slot: Slot
|
|
): Future[SyncBlockDataRes] {.async: (raises: [CancelledError]).} =
|
|
mixin getScore
|
|
|
|
logScope:
|
|
slot = slot
|
|
peer_score = peer.getScore()
|
|
peer_speed = peer.netKbps()
|
|
topics = "syncman"
|
|
|
|
debug "Requesting block from peer"
|
|
|
|
let blocksRange =
|
|
block:
|
|
let res = await beaconBlocksByRange_v2(peer, slot, 1'u64, 1'u64)
|
|
if res.isErr():
|
|
peer.updateScore(PeerScoreNoValues)
|
|
return err("Failed to receive blocks on request [" & $res.error & "]")
|
|
res.get().asSeq
|
|
|
|
if len(blocksRange) == 0:
|
|
peer.updateScore(PeerScoreNoValues)
|
|
return err("An empty range of blocks was returned by peer")
|
|
|
|
if len(blocksRange) != 1:
|
|
peer.updateScore(PeerScoreBadResponse)
|
|
return err("Incorrect number of blocks was returned by peer, " &
|
|
$len(blocksRange))
|
|
|
|
debug "Received block on request"
|
|
|
|
if blocksRange[0][].slot != slot:
|
|
peer.updateScore(PeerScoreBadResponse)
|
|
return err("The received block is not in the requested range")
|
|
|
|
let (shouldGetBlob, blobsCount) =
|
|
withBlck(blocksRange[0][]):
|
|
when consensusFork >= ConsensusFork.Deneb:
|
|
let res = len(forkyBlck.message.body.blob_kzg_commitments)
|
|
if res > 0:
|
|
(true, res)
|
|
else:
|
|
(false, 0)
|
|
else:
|
|
(false, 0)
|
|
|
|
let blobsRange =
|
|
if shouldGetBlob:
|
|
let blobData =
|
|
block:
|
|
debug "Requesting blobs sidecars from peer"
|
|
let res = await blobSidecarsByRange(peer, slot, 1'u64)
|
|
if res.isErr():
|
|
peer.updateScore(PeerScoreNoValues)
|
|
return err(
|
|
"Failed to receive blobs on request, reason: " & $res.error)
|
|
res.get().asSeq()
|
|
|
|
if len(blobData) == 0:
|
|
peer.updateScore(PeerScoreNoValues)
|
|
return err("An empty range of blobs was returned by peer")
|
|
|
|
if len(blobData) != blobsCount:
|
|
peer.updateScore(PeerScoreBadResponse)
|
|
return err("Incorrect number of received blobs in the requested range")
|
|
|
|
debug "Received blobs on request", blobs_count = len(blobData)
|
|
|
|
let groupedBlobs = groupBlobs(blocksRange, blobData).valueOr:
|
|
peer.updateScore(PeerScoreNoValues)
|
|
return err("Received blobs sequence is inconsistent, reason: " & error)
|
|
|
|
groupedBlobs.checkBlobs().isOkOr:
|
|
peer.updateScore(PeerScoreBadResponse)
|
|
return err("Received blobs sequence is invalid, reason: " & error)
|
|
|
|
Opt.some(groupedBlobs)
|
|
else:
|
|
Opt.none(seq[BlobSidecars])
|
|
|
|
ok(SyncBlockData(blocks: blocksRange, blobs: blobsRange))
|
|
|
|
proc syncStep[A, B](
|
|
man: SyncManager[A, B], index: int, peer: A
|
|
) {.async: (raises: [CancelledError]).} =
|
|
logScope:
|
|
peer_score = peer.getScore()
|
|
peer_speed = peer.netKbps()
|
|
index = index
|
|
sync_ident = man.ident
|
|
topics = "syncman"
|
|
|
|
var
|
|
headSlot = man.getLocalHeadSlot()
|
|
wallSlot = man.getLocalWallSlot()
|
|
peerSlot = peer.getHeadSlot()
|
|
|
|
block: # Check that peer status is recent and relevant
|
|
logScope:
|
|
peer = peer
|
|
direction = man.direction
|
|
|
|
debug "Peer's syncing status", wall_clock_slot = wallSlot,
|
|
remote_head_slot = peerSlot, local_head_slot = headSlot
|
|
|
|
let
|
|
peerStatusAge = Moment.now() - peer.getStatusLastTime()
|
|
needsUpdate =
|
|
# Latest status we got is old
|
|
peerStatusAge >= StatusExpirationTime or
|
|
# The point we need to sync is close to where the peer is
|
|
man.getFirstSlot() >= peerSlot
|
|
|
|
if needsUpdate:
|
|
man.workers[index].status = SyncWorkerStatus.UpdatingStatus
|
|
|
|
# Avoid a stampede of requests, but make them more frequent in case the
|
|
# peer is "close" to the slot range of interest
|
|
if peerStatusAge < StatusExpirationTime div 2:
|
|
await sleepAsync(StatusExpirationTime div 2 - peerStatusAge)
|
|
|
|
trace "Updating peer's status information", wall_clock_slot = wallSlot,
|
|
remote_head_slot = peerSlot, local_head_slot = headSlot
|
|
|
|
if not(await peer.updateStatus()):
|
|
peer.updateScore(PeerScoreNoStatus)
|
|
debug "Failed to get remote peer's status, exiting",
|
|
peer_head_slot = peerSlot
|
|
|
|
return
|
|
|
|
let newPeerSlot = peer.getHeadSlot()
|
|
if peerSlot >= newPeerSlot:
|
|
peer.updateScore(PeerScoreStaleStatus)
|
|
debug "Peer's status information is stale",
|
|
wall_clock_slot = wallSlot, remote_old_head_slot = peerSlot,
|
|
local_head_slot = headSlot, remote_new_head_slot = newPeerSlot
|
|
else:
|
|
debug "Peer's status information updated", wall_clock_slot = wallSlot,
|
|
remote_old_head_slot = peerSlot, local_head_slot = headSlot,
|
|
remote_new_head_slot = newPeerSlot
|
|
peer.updateScore(PeerScoreGoodStatus)
|
|
peerSlot = newPeerSlot
|
|
|
|
# Time passed - enough to move slots, if sleep happened
|
|
headSlot = man.getLocalHeadSlot()
|
|
wallSlot = man.getLocalWallSlot()
|
|
|
|
if man.remainingSlots() <= man.maxHeadAge:
|
|
logScope:
|
|
peer = peer
|
|
direction = man.direction
|
|
|
|
case man.direction
|
|
of SyncQueueKind.Forward:
|
|
info "We are in sync with network", wall_clock_slot = wallSlot,
|
|
remote_head_slot = peerSlot, local_head_slot = headSlot
|
|
of SyncQueueKind.Backward:
|
|
info "Backfill complete", wall_clock_slot = wallSlot,
|
|
remote_head_slot = peerSlot, local_head_slot = headSlot
|
|
|
|
# We clear SyncManager's `notInSyncEvent` so all the workers will become
|
|
# sleeping soon.
|
|
man.notInSyncEvent.clear()
|
|
return
|
|
|
|
# Find out if the peer potentially can give useful blocks - in the case of
|
|
# forward sync, they can be useful if they have blocks newer than our head -
|
|
# in the case of backwards sync, they're useful if they have blocks newer than
|
|
# the backfill point
|
|
if man.getFirstSlot() >= peerSlot:
|
|
# This is not very good solution because we should not discriminate and/or
|
|
# penalize peers which are in sync process too, but their latest head is
|
|
# lower then our latest head. We should keep connections with such peers
|
|
# (so this peers are able to get in sync using our data), but we should
|
|
# not use this peers for syncing because this peers are useless for us.
|
|
# Right now we decreasing peer's score a bit, so it will not be
|
|
# disconnected due to low peer's score, but new fresh peers could replace
|
|
# peers with low latest head.
|
|
debug "Peer's head slot is lower then local head slot", peer = peer,
|
|
wall_clock_slot = wallSlot, remote_head_slot = peerSlot,
|
|
local_last_slot = man.getLastSlot(),
|
|
local_first_slot = man.getFirstSlot(),
|
|
direction = man.direction
|
|
peer.updateScore(PeerScoreUseless)
|
|
return
|
|
|
|
# Wall clock keeps ticking, so we need to update the queue
|
|
man.queue.updateLastSlot(man.getLastSlot())
|
|
|
|
man.workers[index].status = SyncWorkerStatus.Requesting
|
|
let req = man.queue.pop(peerSlot, peer)
|
|
if req.isEmpty():
|
|
# SyncQueue could return empty request in 2 cases:
|
|
# 1. There no more slots in SyncQueue to download (we are synced, but
|
|
# our ``notInSyncEvent`` is not yet cleared).
|
|
# 2. Current peer's known head slot is too low to satisfy request.
|
|
#
|
|
# To avoid endless loop we going to wait for RESP_TIMEOUT time here.
|
|
# This time is enough for all pending requests to finish and it is also
|
|
# enough for main sync loop to clear ``notInSyncEvent``.
|
|
debug "Empty request received from queue, exiting", peer = peer,
|
|
local_head_slot = headSlot, remote_head_slot = peerSlot,
|
|
queue_input_slot = man.queue.inpSlot,
|
|
queue_output_slot = man.queue.outSlot,
|
|
queue_last_slot = man.queue.finalSlot, direction = man.direction
|
|
await sleepAsync(RESP_TIMEOUT_DUR)
|
|
return
|
|
|
|
debug "Creating new request for peer", wall_clock_slot = wallSlot,
|
|
remote_head_slot = peerSlot, local_head_slot = headSlot,
|
|
request = req
|
|
|
|
man.workers[index].status = SyncWorkerStatus.Downloading
|
|
|
|
let blocks = await man.getBlocks(peer, req)
|
|
if blocks.isErr():
|
|
peer.updateScore(PeerScoreNoValues)
|
|
man.queue.push(req)
|
|
debug "Failed to receive blocks on request",
|
|
request = req, err = blocks.error
|
|
return
|
|
let blockData = blocks.get().asSeq()
|
|
debug "Received blocks on request", blocks_count = len(blockData),
|
|
blocks_map = getShortMap(req, blockData), request = req
|
|
|
|
let slots = mapIt(blockData, it[].slot)
|
|
checkResponse(req, slots).isOkOr:
|
|
peer.updateScore(PeerScoreBadResponse)
|
|
man.queue.push(req)
|
|
warn "Incorrect blocks sequence received",
|
|
blocks_count = len(blockData),
|
|
blocks_map = getShortMap(req, blockData),
|
|
request = req,
|
|
reason = error
|
|
return
|
|
|
|
let shouldGetBlobs =
|
|
if not man.shouldGetBlobs(req):
|
|
false
|
|
else:
|
|
var hasBlobs = false
|
|
for blck in blockData:
|
|
withBlck(blck[]):
|
|
when consensusFork >= ConsensusFork.Deneb:
|
|
if forkyBlck.message.body.blob_kzg_commitments.len > 0:
|
|
hasBlobs = true
|
|
break
|
|
hasBlobs
|
|
|
|
let blobData =
|
|
if shouldGetBlobs:
|
|
let blobs = await man.getBlobSidecars(peer, req)
|
|
if blobs.isErr():
|
|
peer.updateScore(PeerScoreNoValues)
|
|
man.queue.push(req)
|
|
debug "Failed to receive blobs on request",
|
|
request = req, err = blobs.error
|
|
return
|
|
let blobData = blobs.get().asSeq()
|
|
debug "Received blobs on request",
|
|
blobs_count = len(blobData),
|
|
blobs_map = getShortMap(req, blobData), request = req
|
|
|
|
if len(blobData) > 0:
|
|
let slots = mapIt(blobData, it[].signed_block_header.message.slot)
|
|
checkBlobsResponse(req, slots).isOkOr:
|
|
peer.updateScore(PeerScoreBadResponse)
|
|
man.queue.push(req)
|
|
warn "Incorrect blobs sequence received",
|
|
blobs_count = len(blobData),
|
|
blobs_map = getShortMap(req, blobData),
|
|
request = req,
|
|
reason = error
|
|
return
|
|
let groupedBlobs = groupBlobs(blockData, blobData).valueOr:
|
|
peer.updateScore(PeerScoreNoValues)
|
|
man.queue.push(req)
|
|
info "Received blobs sequence is inconsistent",
|
|
blobs_map = getShortMap(req, blobData),
|
|
request = req, msg = error
|
|
return
|
|
groupedBlobs.checkBlobs().isOkOr:
|
|
peer.updateScore(PeerScoreBadResponse)
|
|
man.queue.push(req)
|
|
warn "Received blobs verification failed",
|
|
blobs_count = len(blobData),
|
|
blobs_map = getShortMap(req, blobData),
|
|
request = req,
|
|
reason = error
|
|
return
|
|
Opt.some(groupedBlobs)
|
|
else:
|
|
Opt.none(seq[BlobSidecars])
|
|
|
|
if len(blockData) == 0 and man.direction == SyncQueueKind.Backward and
|
|
req.contains(man.getSafeSlot()):
|
|
# The sync protocol does not distinguish between:
|
|
# - All requested slots are empty
|
|
# - Peer does not have data available about requested range
|
|
#
|
|
# However, we include the `backfill` slot in backward sync requests.
|
|
# If we receive an empty response to a request covering that slot,
|
|
# we know that the response is incomplete and can descore.
|
|
peer.updateScore(PeerScoreNoValues)
|
|
man.queue.push(req)
|
|
debug "Response does not include known-to-exist block", request = req
|
|
return
|
|
|
|
# Scoring will happen in `syncUpdate`.
|
|
man.workers[index].status = SyncWorkerStatus.Queueing
|
|
let
|
|
peerFinalized = peer.getFinalizedEpoch().start_slot()
|
|
lastSlot = req.slot + req.count
|
|
# The peer claims the block is finalized - our own block processing will
|
|
# verify this point down the line
|
|
# TODO descore peers that lie
|
|
maybeFinalized = lastSlot < peerFinalized
|
|
|
|
await man.queue.push(req, blockData, blobData, maybeFinalized, proc() =
|
|
man.workers[index].status = SyncWorkerStatus.Processing)
|
|
|
|
proc syncWorker[A, B](
|
|
man: SyncManager[A, B], index: int
|
|
) {.async: (raises: [CancelledError]).} =
|
|
mixin getKey, getScore, getHeadSlot
|
|
|
|
logScope:
|
|
index = index
|
|
sync_ident = man.ident
|
|
direction = man.direction
|
|
topics = "syncman"
|
|
|
|
debug "Starting syncing worker"
|
|
|
|
var peer: A = nil
|
|
|
|
try:
|
|
while true:
|
|
man.workers[index].status = SyncWorkerStatus.Sleeping
|
|
# This event is going to be set until we are not in sync with network
|
|
await man.notInSyncEvent.wait()
|
|
man.workers[index].status = SyncWorkerStatus.WaitingPeer
|
|
peer = await man.pool.acquire()
|
|
await man.syncStep(index, peer)
|
|
man.pool.release(peer)
|
|
peer = nil
|
|
finally:
|
|
if not(isNil(peer)):
|
|
man.pool.release(peer)
|
|
|
|
debug "Sync worker stopped"
|
|
|
|
proc getWorkersStats[A, B](man: SyncManager[A, B]): tuple[map: string,
|
|
sleeping: int,
|
|
waiting: int,
|
|
pending: int] =
|
|
var map = newString(len(man.workers))
|
|
var sleeping, waiting, pending: int
|
|
for i in 0 ..< len(man.workers):
|
|
var ch: char
|
|
case man.workers[i].status
|
|
of SyncWorkerStatus.Sleeping:
|
|
ch = 's'
|
|
inc(sleeping)
|
|
of SyncWorkerStatus.WaitingPeer:
|
|
ch = 'w'
|
|
inc(waiting)
|
|
of SyncWorkerStatus.UpdatingStatus:
|
|
ch = 'U'
|
|
inc(pending)
|
|
of SyncWorkerStatus.Requesting:
|
|
ch = 'R'
|
|
inc(pending)
|
|
of SyncWorkerStatus.Downloading:
|
|
ch = 'D'
|
|
inc(pending)
|
|
of SyncWorkerStatus.Queueing:
|
|
ch = 'Q'
|
|
inc(pending)
|
|
of SyncWorkerStatus.Processing:
|
|
ch = 'P'
|
|
inc(pending)
|
|
map[i] = ch
|
|
(map, sleeping, waiting, pending)
|
|
|
|
proc startWorkers[A, B](man: SyncManager[A, B]) =
|
|
# Starting all the synchronization workers.
|
|
for i in 0 ..< len(man.workers):
|
|
man.workers[i].future = syncWorker[A, B](man, i)
|
|
|
|
proc stopWorkers[A, B](man: SyncManager[A, B]) {.async: (raises: []).} =
|
|
# Cancelling all the synchronization workers.
|
|
let pending = man.workers.mapIt(it.future.cancelAndWait())
|
|
await noCancel allFutures(pending)
|
|
|
|
proc toTimeLeftString*(d: Duration): string =
|
|
if d == InfiniteDuration:
|
|
"--h--m"
|
|
else:
|
|
var v = d
|
|
var res = ""
|
|
let ndays = chronos.days(v)
|
|
if ndays > 0:
|
|
res = res & (if ndays < 10: "0" & $ndays else: $ndays) & "d"
|
|
v = v - chronos.days(ndays)
|
|
|
|
let nhours = chronos.hours(v)
|
|
if nhours > 0:
|
|
res = res & (if nhours < 10: "0" & $nhours else: $nhours) & "h"
|
|
v = v - chronos.hours(nhours)
|
|
else:
|
|
res = res & "00h"
|
|
|
|
let nmins = chronos.minutes(v)
|
|
if nmins > 0:
|
|
res = res & (if nmins < 10: "0" & $nmins else: $nmins) & "m"
|
|
v = v - chronos.minutes(nmins)
|
|
else:
|
|
res = res & "00m"
|
|
res
|
|
|
|
proc syncClose[A, B](
|
|
man: SyncManager[A, B], speedTaskFut: Future[void]
|
|
) {.async: (raises: []).} =
|
|
var pending: seq[FutureBase]
|
|
if not(speedTaskFut.finished()):
|
|
pending.add(speedTaskFut.cancelAndWait())
|
|
for worker in man.workers:
|
|
doAssert(worker.status in {Sleeping, WaitingPeer})
|
|
pending.add(worker.future.cancelAndWait())
|
|
await noCancel allFutures(pending)
|
|
|
|
proc syncLoop[A, B](
|
|
man: SyncManager[A, B]
|
|
) {.async: (raises: [CancelledError]).} =
|
|
|
|
logScope:
|
|
sync_ident = man.ident
|
|
direction = man.direction
|
|
topics = "syncman"
|
|
|
|
mixin getKey, getScore
|
|
var pauseTime = 0
|
|
|
|
man.startWorkers()
|
|
|
|
debug "Synchronization loop started"
|
|
|
|
proc averageSpeedTask() {.async: (raises: [CancelledError]).} =
|
|
while true:
|
|
# Reset sync speeds between each loss-of-sync event
|
|
man.avgSyncSpeed = 0
|
|
man.insSyncSpeed = 0
|
|
|
|
await man.notInSyncEvent.wait()
|
|
|
|
# Give the node time to connect to peers and get the sync process started
|
|
await sleepAsync(seconds(SECONDS_PER_SLOT.int64))
|
|
|
|
var
|
|
stamp = SyncMoment.now(man.queue.progress())
|
|
syncCount = 0
|
|
|
|
while man.inProgress:
|
|
await sleepAsync(seconds(SECONDS_PER_SLOT.int64))
|
|
|
|
let
|
|
newStamp = SyncMoment.now(man.queue.progress())
|
|
slotsPerSec = speed(stamp, newStamp)
|
|
|
|
syncCount += 1
|
|
|
|
man.insSyncSpeed = slotsPerSec
|
|
man.avgSyncSpeed =
|
|
man.avgSyncSpeed + (slotsPerSec - man.avgSyncSpeed) / float(syncCount)
|
|
|
|
stamp = newStamp
|
|
|
|
let averageSpeedTaskFut = averageSpeedTask()
|
|
|
|
while true:
|
|
let wallSlot = man.getLocalWallSlot()
|
|
let headSlot = man.getLocalHeadSlot()
|
|
|
|
let (map, sleeping, waiting, pending) = man.getWorkersStats()
|
|
|
|
case man.queue.kind
|
|
of SyncQueueKind.Forward:
|
|
debug "Current syncing state", workers_map = map,
|
|
sleeping_workers_count = sleeping,
|
|
waiting_workers_count = waiting,
|
|
pending_workers_count = pending,
|
|
wall_head_slot = wallSlot,
|
|
local_head_slot = headSlot,
|
|
pause_time = $chronos.seconds(pauseTime),
|
|
avg_sync_speed = man.avgSyncSpeed.formatBiggestFloat(ffDecimal, 4),
|
|
ins_sync_speed = man.insSyncSpeed.formatBiggestFloat(ffDecimal, 4)
|
|
of SyncQueueKind.Backward:
|
|
debug "Current syncing state", workers_map = map,
|
|
sleeping_workers_count = sleeping,
|
|
waiting_workers_count = waiting,
|
|
pending_workers_count = pending,
|
|
wall_head_slot = wallSlot,
|
|
backfill_slot = man.getSafeSlot(),
|
|
pause_time = $chronos.seconds(pauseTime),
|
|
avg_sync_speed = man.avgSyncSpeed.formatBiggestFloat(ffDecimal, 4),
|
|
ins_sync_speed = man.insSyncSpeed.formatBiggestFloat(ffDecimal, 4)
|
|
let
|
|
pivot = man.progressPivot
|
|
progress =
|
|
case man.queue.kind
|
|
of SyncQueueKind.Forward:
|
|
if man.queue.outSlot >= pivot:
|
|
man.queue.outSlot - pivot
|
|
else:
|
|
0'u64
|
|
of SyncQueueKind.Backward:
|
|
if pivot >= man.queue.outSlot:
|
|
pivot - man.queue.outSlot
|
|
else:
|
|
0'u64
|
|
total =
|
|
case man.queue.kind
|
|
of SyncQueueKind.Forward:
|
|
if man.queue.finalSlot >= pivot:
|
|
man.queue.finalSlot + 1'u64 - pivot
|
|
else:
|
|
0'u64
|
|
of SyncQueueKind.Backward:
|
|
if pivot >= man.queue.finalSlot:
|
|
pivot + 1'u64 - man.queue.finalSlot
|
|
else:
|
|
0'u64
|
|
remaining = total - progress
|
|
done =
|
|
if total > 0:
|
|
progress.float / total.float
|
|
else:
|
|
1.0
|
|
timeleft =
|
|
if man.avgSyncSpeed >= 0.001:
|
|
Duration.fromFloatSeconds(remaining.float / man.avgSyncSpeed)
|
|
else:
|
|
InfiniteDuration
|
|
currentSlot = Base10.toString(
|
|
if man.queue.kind == SyncQueueKind.Forward:
|
|
max(uint64(man.queue.outSlot), 1'u64) - 1'u64
|
|
else:
|
|
uint64(man.queue.outSlot) + 1'u64
|
|
)
|
|
|
|
# Update status string
|
|
man.syncStatus = timeleft.toTimeLeftString() & " (" &
|
|
(done * 100).formatBiggestFloat(ffDecimal, 2) & "%) " &
|
|
man.avgSyncSpeed.formatBiggestFloat(ffDecimal, 4) &
|
|
"slots/s (" & map & ":" & currentSlot & ")"
|
|
|
|
if (man.queue.kind == SyncQueueKind.Forward) and
|
|
(SyncManagerFlag.NoGenesisSync in man.flags):
|
|
if not(man.isWithinWeakSubjectivityPeriod()):
|
|
fatal WeakSubjectivityLogMessage, current_slot = wallSlot
|
|
await man.stopWorkers()
|
|
man.shutdownEvent.fire()
|
|
return
|
|
|
|
if man.remainingSlots() <= man.maxHeadAge:
|
|
man.notInSyncEvent.clear()
|
|
# We are marking SyncManager as not working only when we are in sync and
|
|
# all sync workers are in `Sleeping` state.
|
|
if pending > 0:
|
|
debug "Synchronization loop waits for workers completion",
|
|
wall_head_slot = wallSlot, local_head_slot = headSlot,
|
|
difference = (wallSlot - headSlot), max_head_age = man.maxHeadAge,
|
|
sleeping_workers_count = sleeping,
|
|
waiting_workers_count = waiting, pending_workers_count = pending
|
|
# We already synced, so we should reset all the pending workers from
|
|
# any state they have.
|
|
man.queue.clearAndWakeup()
|
|
man.inProgress = true
|
|
else:
|
|
case man.direction
|
|
of SyncQueueKind.Forward:
|
|
if man.inProgress:
|
|
if SyncManagerFlag.NoMonitor in man.flags:
|
|
await man.syncClose(averageSpeedTaskFut)
|
|
man.inProgress = false
|
|
debug "Forward synchronization process finished, exiting",
|
|
wall_head_slot = wallSlot, local_head_slot = headSlot,
|
|
difference = (wallSlot - headSlot),
|
|
max_head_age = man.maxHeadAge
|
|
break
|
|
else:
|
|
man.inProgress = false
|
|
debug "Forward synchronization process finished, sleeping",
|
|
wall_head_slot = wallSlot, local_head_slot = headSlot,
|
|
difference = (wallSlot - headSlot),
|
|
max_head_age = man.maxHeadAge
|
|
else:
|
|
debug "Synchronization loop sleeping", wall_head_slot = wallSlot,
|
|
local_head_slot = headSlot,
|
|
difference = (wallSlot - headSlot),
|
|
max_head_age = man.maxHeadAge
|
|
of SyncQueueKind.Backward:
|
|
# Backward syncing is going to be executed only once, so we exit loop
|
|
# and stop all pending tasks which belongs to this instance (sync
|
|
# workers, speed calculation task).
|
|
await man.syncClose(averageSpeedTaskFut)
|
|
man.inProgress = false
|
|
debug "Backward synchronization process finished, exiting",
|
|
wall_head_slot = wallSlot, local_head_slot = headSlot,
|
|
backfill_slot = man.getLastSlot(),
|
|
max_head_age = man.maxHeadAge
|
|
break
|
|
else:
|
|
if not(man.notInSyncEvent.isSet()):
|
|
# We get here only if we lost sync for more then `maxHeadAge` period.
|
|
if pending == 0:
|
|
man.initQueue()
|
|
man.notInSyncEvent.fire()
|
|
man.inProgress = true
|
|
debug "Node lost sync for more then preset period",
|
|
period = man.maxHeadAge, wall_head_slot = wallSlot,
|
|
local_head_slot = headSlot,
|
|
missing_slots = man.remainingSlots(),
|
|
progress = float(man.queue.progress())
|
|
else:
|
|
man.notInSyncEvent.fire()
|
|
man.inProgress = true
|
|
|
|
await sleepAsync(chronos.seconds(2))
|
|
|
|
proc start*[A, B](man: SyncManager[A, B]) =
|
|
## Starts SyncManager's main loop.
|
|
man.syncFut = man.syncLoop()
|
|
|
|
proc updatePivot*[A, B](man: SyncManager[A, B], pivot: Slot) =
|
|
## Update progress pivot slot.
|
|
man.progressPivot = pivot
|
|
|
|
proc join*[A, B](
|
|
man: SyncManager[A, B]
|
|
): Future[void] {.async: (raw: true, raises: [CancelledError]).} =
|
|
if man.syncFut.isNil():
|
|
let retFuture =
|
|
Future[void].Raising([CancelledError]).init("nimbus-eth2.join()")
|
|
retFuture.complete()
|
|
retFuture
|
|
else:
|
|
man.syncFut.join()
|