prysm-pulse/beacon-chain/sync/initial-sync/service.go
Raul Jordan cc741ed8af
Ensure New State Type Tests Pass in Prysm (#4646)
* begin state service

* begin on the state trie idea

* created beacon state structure

* add in the full clone getter

* return by value instead

* add all setters

* new state setters are being completed

* arrays roots exposed

*  close to finishing all these headerssss

* functionality complete

* added in proto benchmark test

* test for compatibility

* add test for compat

* comments fixed

* add clone

* add clone

* remove underlying copies

* make it immutable

* integrate it into chainservice

* revert

* wrap up comments for package

* address all comments and godocs

* address all comments

* clone the pending attestation properly

* properly clone remaining items

* tests pass fixed bug

* begin using it instead of head state

* prevent nil pointer exceptions

* begin using new struct in db

* integrated new type into db package

* add proper nil checks

* using new state in archiver

* refactored much of core

* editing all the precompute functions

* done with most core refactor

* fixed up some bugs in the clone comparisons

* append current epoch atts

* add missing setters

* add new setters

* fix other core methods

* fix up transition

* main service and forkchoice

* fix rpc

* integrated to powchain

* some more changes

* fix build

* improve processing of deposits

* fix error

* prevent panic

* comment

* fix process att

* gaz

* fix up att process

* resolve existing review comments

* resolve another batch of gh comments

* resolve broken cpt state

* revise testutil to use the new state

* begin updating the state transition func to pass in more compartmentalized args

* finish editing transition function to return errors

* block operations pretty much done with refactor

* state transition fully refactored

* got epoch processing completed

* fix build in fork choice

* fixing more of the build

* fix up broken sync package

* it builds nowww it buildssss

* revert registry changes

* Recompute on Read (#4627)

* compute on read

* fix up eth1 data votes

* looking into slashings bug introduced in core/

* able to advance more slots

* add logging

* can now sync with testnet yay

* remove the leaves algorithm and other merkle imports

* expose initialize unsafe funcs

* Update beacon-chain/db/kv/state.go

* lint

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* More Optimizations for New State (#4641)

* map optimization

* more optimizations

* use a custom hasher

* comment

* block operations optimizations

* Update beacon-chain/state/types.go

Co-Authored-By: Raul Jordan <raul@prysmaticlabs.com>

* fixed up various operations to use the validator index map access

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* archiver tests pass

* fixing cache tests

* cache tests passing

* edited validator tests

* powchain tests passing

* halfway thru sync tests

* more sync test fixes

* add in tests for state/

* working through rpc tests

* assignments tests passed

* almost done with rpc/beacon tests

* resolved painful validator test

* fixed up even more tests

* resolve tests

* fix build

* reduce a randao mixes copy

* fixes under //beacon-chain/blockchain/...

* build //beacon-chain/core/...

* fixes

* Runtime Optimizations (#4648)

* parallelize shuffling

* clean up

* lint

* fix build

* use callback to read from registry

* fix array roots and size map

* new improvements

* reduce hash allocs

* improved shuffling

* terence's review

* use different method

* raul's comment

* new array roots

* remove clone in pre-compute

* Update beacon-chain/state/types.go

Co-Authored-By: Raul Jordan <raul@prysmaticlabs.com>

* raul's review

* lint

* fix build issues

* fix visibility

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* fix visibility

* build works for all

* fix blockchain test

* fix a few tests

* fix more tests

* update validator in slashing

* archiver passing

* fixed rpc/validator

* progress on core tests

* resolve broken rpc tests

* blockchain tests passed

* fix up some tests in core

* fix message diff

* remove unnecessary save

* Save validator after slashing

* Update validators one by one

* another update

* fix everything

* fix more precompute tests

* fix blocks tests

* more elegant fix

* more helper fixes

* change back ?

* fix test

* fix skip slot

* fix test

* reset caches

* fix testutil

* raceoff fixed

* passing

* Retrieve cached state in the beginning

* lint

* Fixed tests part 1

* Fixed rest of the tests

* Minor changes to avoid copying, small refactor to reduce deplicated code

* Handle att req for slot 0

* New beacon state: Only populate merkle layers as needed, copy merkle layers on copy/clone. (#4689)

* Only populate merkle layers as needed, copy merkle layers on copy/clone.

* use custom copy

* Make maps of correct size

* slightly fast, doesn't wait for lock

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>

* Target root can't be 0x00

* Don't use cache for current slot (may not be the right fix)

* fixed up tests

* Remove some copy for init sync. Not sure if it is safe enough for runtime though... testing...

* Align with prev logic for process slots cachedState.Slot() < slot

* Fix Initial Sync Flag (#4692)

* fixes

* fix up some test failures due to lack of nil checks

* fix up some test failures due to lack of nil checks

* fix up imports

* revert some changes

* imports

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>

* resolving further conflicts

* Better skip slot cache (#4694)

* Return copy of skip slot cache state, disable skip slot cache on sync

* fix

* Fix pruning

* fix up issues with broken tests

Co-authored-by: Nishant Das <nish1993@hotmail.com>
Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
Co-authored-by: shayzluf <thezluf@gmail.com>
Co-authored-by: terence tsao <terence@prysmaticlabs.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2020-01-31 12:57:01 -08:00

186 lines
5.2 KiB
Go

package initialsync
import (
"context"
"time"
"github.com/kevinms/leakybucket-go"
"github.com/pkg/errors"
"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
"github.com/prysmaticlabs/prysm/beacon-chain/core/feed"
statefeed "github.com/prysmaticlabs/prysm/beacon-chain/core/feed/state"
"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
"github.com/prysmaticlabs/prysm/beacon-chain/db"
"github.com/prysmaticlabs/prysm/beacon-chain/flags"
"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
"github.com/prysmaticlabs/prysm/shared"
"github.com/prysmaticlabs/prysm/shared/params"
"github.com/prysmaticlabs/prysm/shared/roughtime"
"github.com/sirupsen/logrus"
)
var _ = shared.Service(&Service{})
type blockchainService interface {
blockchain.BlockReceiver
blockchain.HeadFetcher
}
const (
handshakePollingInterval = 5 * time.Second // Polling interval for checking the number of received handshakes.
allowedBlocksPerSecond = 32.0
)
// Config to set up the initial sync service.
type Config struct {
P2P p2p.P2P
DB db.ReadOnlyDatabase
Chain blockchainService
StateNotifier statefeed.Notifier
}
// Service service.
type Service struct {
ctx context.Context
chain blockchainService
p2p p2p.P2P
db db.ReadOnlyDatabase
synced bool
chainStarted bool
stateNotifier statefeed.Notifier
blocksRateLimiter *leakybucket.Collector
}
// NewInitialSync configures the initial sync service responsible for bringing the node up to the
// latest head of the blockchain.
func NewInitialSync(cfg *Config) *Service {
return &Service{
ctx: context.Background(),
chain: cfg.Chain,
p2p: cfg.P2P,
db: cfg.DB,
stateNotifier: cfg.StateNotifier,
blocksRateLimiter: leakybucket.NewCollector(allowedBlocksPerSecond, allowedBlocksPerSecond, false /* deleteEmptyBuckets */),
}
}
// Start the initial sync service.
func (s *Service) Start() {
var genesis time.Time
headState, err := s.chain.HeadState(s.ctx)
if headState == nil || err != nil {
// Wait for state to be initialized.
stateChannel := make(chan *feed.Event, 1)
stateSub := s.stateNotifier.StateFeed().Subscribe(stateChannel)
defer stateSub.Unsubscribe()
genesisSet := false
for !genesisSet {
select {
case event := <-stateChannel:
if event.Type == statefeed.Initialized {
data := event.Data.(*statefeed.InitializedData)
log.WithField("starttime", data.StartTime).Debug("Received state initialized event")
genesis = data.StartTime
genesisSet = true
}
case <-s.ctx.Done():
log.Debug("Context closed, exiting goroutine")
return
case err := <-stateSub.Err():
log.WithError(err).Error("Subscription to state notifier failed")
return
}
}
stateSub.Unsubscribe()
} else {
genesis = time.Unix(int64(headState.GenesisTime()), 0)
}
if genesis.After(roughtime.Now()) {
log.WithField(
"genesis time",
genesis,
).Warn("Genesis time is in the future - waiting to start sync...")
time.Sleep(roughtime.Until(genesis))
}
s.chainStarted = true
currentSlot := helpers.SlotsSince(genesis)
if helpers.SlotToEpoch(currentSlot) == 0 {
log.Info("Chain started within the last epoch - not syncing")
s.synced = true
return
}
log.Info("Starting initial chain sync...")
// Are we already in sync, or close to it?
if helpers.SlotToEpoch(s.chain.HeadSlot()) == helpers.SlotToEpoch(currentSlot) {
log.Info("Already synced to the current chain head")
s.synced = true
return
}
s.waitForMinimumPeers()
if err := s.roundRobinSync(genesis); err != nil {
panic(err)
}
log.Infof("Synced up to slot %d", s.chain.HeadSlot())
s.synced = true
}
// Stop initial sync.
func (s *Service) Stop() error {
return nil
}
// Status of initial sync.
func (s *Service) Status() error {
if !s.synced && s.chainStarted {
return errors.New("syncing")
}
return nil
}
// Syncing returns true if initial sync is still running.
func (s *Service) Syncing() bool {
return !s.synced
}
// Resync allows a node to start syncing again if it has fallen
// behind the current network head.
func (s *Service) Resync() error {
// set it to false since we are syncing again
s.synced = false
defer func() { s.synced = true }() // Reset it at the end of the method.
headState, err := s.chain.HeadState(context.Background())
if err != nil {
return errors.Wrap(err, "could not retrieve head state")
}
genesis := time.Unix(int64(headState.GenesisTime()), 0)
s.waitForMinimumPeers()
err = s.roundRobinSync(genesis)
if err != nil {
log = log.WithError(err)
}
log.WithField("slot", s.chain.HeadSlot()).Info("Resync attempt complete")
return nil
}
func (s *Service) waitForMinimumPeers() {
required := params.BeaconConfig().MaxPeersToSync
if flags.Get().MinimumSyncPeers < required {
required = flags.Get().MinimumSyncPeers
}
for {
_, _, peers := s.p2p.Peers().BestFinalized(params.BeaconConfig().MaxPeersToSync, helpers.SlotToEpoch(s.chain.HeadSlot()))
if len(peers) >= required {
break
}
log.WithFields(logrus.Fields{
"suitable": len(peers),
"required": required}).Info("Waiting for enough suitable peers before syncing")
time.Sleep(handshakePollingInterval)
}
}