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syncValidatorStatus.go
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/
syncValidatorStatus.go
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package bootstrap
import (
"context"
"time"
"github.com/ElrondNetwork/elrond-go-core/data"
"github.com/ElrondNetwork/elrond-go-core/data/block"
"github.com/ElrondNetwork/elrond-go-core/data/endProcess"
"github.com/ElrondNetwork/elrond-go-core/hashing"
"github.com/ElrondNetwork/elrond-go-core/marshal"
"github.com/ElrondNetwork/elrond-go/dataRetriever"
"github.com/ElrondNetwork/elrond-go/epochStart"
"github.com/ElrondNetwork/elrond-go/epochStart/bootstrap/disabled"
"github.com/ElrondNetwork/elrond-go/process"
"github.com/ElrondNetwork/elrond-go/sharding"
"github.com/ElrondNetwork/elrond-go/storage"
"github.com/ElrondNetwork/elrond-go/storage/lrucache"
"github.com/ElrondNetwork/elrond-go/update/sync"
)
const consensusGroupCacheSize = 50
type syncValidatorStatus struct {
miniBlocksSyncer epochStart.PendingMiniBlocksSyncHandler
dataPool dataRetriever.PoolsHolder
marshalizer marshal.Marshalizer
requestHandler process.RequestHandler
nodeCoordinator StartInEpochNodesCoordinator
genesisNodesConfig sharding.GenesisNodesSetupHandler
memDB storage.Storer
}
// ArgsNewSyncValidatorStatus holds the arguments needed for creating a new validator status process component
type ArgsNewSyncValidatorStatus struct {
DataPool dataRetriever.PoolsHolder
Marshalizer marshal.Marshalizer
Hasher hashing.Hasher
RequestHandler process.RequestHandler
ChanceComputer sharding.ChanceComputer
GenesisNodesConfig sharding.GenesisNodesSetupHandler
NodeShuffler sharding.NodesShuffler
PubKey []byte
ShardIdAsObserver uint32
WaitingListFixEnableEpoch uint32
ChanNodeStop chan endProcess.ArgEndProcess
NodeTypeProvider NodeTypeProviderHandler
IsFullArchive bool
}
// NewSyncValidatorStatus creates a new validator status process component
func NewSyncValidatorStatus(args ArgsNewSyncValidatorStatus) (*syncValidatorStatus, error) {
if args.ChanNodeStop == nil {
return nil, sharding.ErrNilNodeStopChannel
}
s := &syncValidatorStatus{
dataPool: args.DataPool,
marshalizer: args.Marshalizer,
requestHandler: args.RequestHandler,
genesisNodesConfig: args.GenesisNodesConfig,
}
syncMiniBlocksArgs := sync.ArgsNewPendingMiniBlocksSyncer{
Storage: disabled.CreateMemUnit(),
Cache: s.dataPool.MiniBlocks(),
Marshalizer: s.marshalizer,
RequestHandler: s.requestHandler,
}
var err error
s.miniBlocksSyncer, err = sync.NewPendingMiniBlocksSyncer(syncMiniBlocksArgs)
if err != nil {
return nil, err
}
eligibleNodesInfo, waitingNodesInfo := args.GenesisNodesConfig.InitialNodesInfo()
eligibleValidators, err := sharding.NodesInfoToValidators(eligibleNodesInfo)
if err != nil {
return nil, err
}
waitingValidators, err := sharding.NodesInfoToValidators(waitingNodesInfo)
if err != nil {
return nil, err
}
consensusGroupCache, err := lrucache.NewCache(consensusGroupCacheSize)
if err != nil {
return nil, err
}
s.memDB = disabled.CreateMemUnit()
argsNodesCoordinator := sharding.ArgNodesCoordinator{
ShardConsensusGroupSize: int(args.GenesisNodesConfig.GetShardConsensusGroupSize()),
MetaConsensusGroupSize: int(args.GenesisNodesConfig.GetMetaConsensusGroupSize()),
Marshalizer: args.Marshalizer,
Hasher: args.Hasher,
Shuffler: args.NodeShuffler,
EpochStartNotifier: &disabled.EpochStartNotifier{},
BootStorer: s.memDB,
ShardIDAsObserver: args.ShardIdAsObserver,
NbShards: args.GenesisNodesConfig.NumberOfShards(),
EligibleNodes: eligibleValidators,
WaitingNodes: waitingValidators,
SelfPublicKey: args.PubKey,
ConsensusGroupCache: consensusGroupCache,
ShuffledOutHandler: disabled.NewShuffledOutHandler(),
WaitingListFixEnabledEpoch: args.WaitingListFixEnableEpoch,
ChanStopNode: args.ChanNodeStop,
NodeTypeProvider: args.NodeTypeProvider,
IsFullArchive: args.IsFullArchive,
}
baseNodesCoordinator, err := sharding.NewIndexHashedNodesCoordinator(argsNodesCoordinator)
if err != nil {
return nil, err
}
nodesCoordinator, err := sharding.NewIndexHashedNodesCoordinatorWithRater(baseNodesCoordinator, args.ChanceComputer)
if err != nil {
return nil, err
}
s.nodeCoordinator = nodesCoordinator
return s, nil
}
// NodesConfigFromMetaBlock synces and creates registry from epoch start metablock
func (s *syncValidatorStatus) NodesConfigFromMetaBlock(
currMetaBlock data.HeaderHandler,
prevMetaBlock data.HeaderHandler,
) (*sharding.NodesCoordinatorRegistry, uint32, error) {
if currMetaBlock.GetNonce() > 1 && !currMetaBlock.IsStartOfEpochBlock() {
return nil, 0, epochStart.ErrNotEpochStartBlock
}
if prevMetaBlock.GetNonce() > 1 && !prevMetaBlock.IsStartOfEpochBlock() {
return nil, 0, epochStart.ErrNotEpochStartBlock
}
err := s.processValidatorChangesFor(prevMetaBlock)
if err != nil {
return nil, 0, err
}
err = s.processValidatorChangesFor(currMetaBlock)
if err != nil {
return nil, 0, err
}
selfShardId, err := s.nodeCoordinator.ShardIdForEpoch(currMetaBlock.GetEpoch())
if err != nil {
return nil, 0, err
}
nodesConfig := s.nodeCoordinator.NodesCoordinatorToRegistry()
nodesConfig.CurrentEpoch = currMetaBlock.GetEpoch()
return nodesConfig, selfShardId, nil
}
func (s *syncValidatorStatus) processValidatorChangesFor(metaBlock data.HeaderHandler) error {
if metaBlock.GetEpoch() == 0 {
// no need to process for genesis - already created
return nil
}
blockBody, err := s.getPeerBlockBodyForMeta(metaBlock)
if err != nil {
return err
}
s.nodeCoordinator.EpochStartPrepare(metaBlock, blockBody)
return nil
}
func findPeerMiniBlockHeaders(metaBlock data.HeaderHandler) []data.MiniBlockHeaderHandler {
shardMBHeaderHandlers := make([]data.MiniBlockHeaderHandler, 0)
mbHeaderHandlers := metaBlock.GetMiniBlockHeaderHandlers()
for i, mbHeader := range mbHeaderHandlers{
if mbHeader.GetTypeInt32() != int32(block.PeerBlock) {
continue
}
shardMBHeaderHandlers = append(shardMBHeaderHandlers, mbHeaderHandlers[i])
}
return shardMBHeaderHandlers
}
func (s *syncValidatorStatus) getPeerBlockBodyForMeta(
metaBlock data.HeaderHandler,
) (data.BodyHandler, error) {
shardMBHeaders := findPeerMiniBlockHeaders(metaBlock)
s.miniBlocksSyncer.ClearFields()
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
err := s.miniBlocksSyncer.SyncPendingMiniBlocks(shardMBHeaders, ctx)
cancel()
if err != nil {
return nil, err
}
peerMiniBlocks, err := s.miniBlocksSyncer.GetMiniBlocks()
if err != nil {
return nil, err
}
blockBody := &block.Body{MiniBlocks: make([]*block.MiniBlock, 0, len(peerMiniBlocks))}
for _, mbHeader := range shardMBHeaders {
blockBody.MiniBlocks = append(blockBody.MiniBlocks, peerMiniBlocks[string(mbHeader.GetHash())])
}
return blockBody, nil
}
// IsInterfaceNil returns true if underlying object is nil
func (s *syncValidatorStatus) IsInterfaceNil() bool {
return s == nil
}