hermez-node/node/node.go
node/node.goRaw
1package node
2
3import (
4 "context"
5 "errors"
6 "fmt"
7 "net/http"
8 "sync"
9 "time"
10
11 "github.com/ethereum/go-ethereum/accounts"
12 ethKeystore "github.com/ethereum/go-ethereum/accounts/keystore"
13 "github.com/ethereum/go-ethereum/ethclient"
14 "github.com/gin-contrib/cors"
15 "github.com/gin-gonic/gin"
16 "github.com/hermeznetwork/hermez-node/api"
17 "github.com/hermeznetwork/hermez-node/batchbuilder"
18 "github.com/hermeznetwork/hermez-node/common"
19 "github.com/hermeznetwork/hermez-node/config"
20 "github.com/hermeznetwork/hermez-node/coordinator"
21 dbUtils "github.com/hermeznetwork/hermez-node/db"
22 "github.com/hermeznetwork/hermez-node/db/historydb"
23 "github.com/hermeznetwork/hermez-node/db/l2db"
24 "github.com/hermeznetwork/hermez-node/db/statedb"
25 "github.com/hermeznetwork/hermez-node/eth"
26 "github.com/hermeznetwork/hermez-node/log"
27 "github.com/hermeznetwork/hermez-node/priceupdater"
28 "github.com/hermeznetwork/hermez-node/prover"
29 "github.com/hermeznetwork/hermez-node/synchronizer"
30 "github.com/hermeznetwork/hermez-node/test/debugapi"
31 "github.com/hermeznetwork/hermez-node/txprocessor"
32 "github.com/hermeznetwork/hermez-node/txselector"
33 "github.com/hermeznetwork/tracerr"
34 "github.com/jmoiron/sqlx"
35 "github.com/russross/meddler"
36)
37
38// Mode sets the working mode of the node (synchronizer or coordinator)
39type Mode string
40
41const (
42 // ModeCoordinator defines the mode of the HermezNode as Coordinator, which
43 // means that the node is set to forge (which also will be synchronizing with
44 // the L1 blockchain state)
45 ModeCoordinator Mode = "coordinator"
46
47 // ModeSynchronizer defines the mode of the HermezNode as Synchronizer, which
48 // means that the node is set to only synchronize with the L1 blockchain state
49 // and will not forge
50 ModeSynchronizer Mode = "synchronizer"
51)
52
53// Node is the Hermez Node
54type Node struct {
55 nodeAPI *NodeAPI
56 debugAPI *debugapi.DebugAPI
57 priceUpdater *priceupdater.PriceUpdater
58 // Coordinator
59 coord *coordinator.Coordinator
60
61 // Synchronizer
62 sync *synchronizer.Synchronizer
63
64 // General
65 cfg *config.Node
66 mode Mode
67 sqlConn *sqlx.DB
68 ctx context.Context
69 wg sync.WaitGroup
70 cancel context.CancelFunc
71}
72
73// NewNode creates a Node
74func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
75 meddler.Debug = cfg.Debug.MeddlerLogs
76 // Stablish DB connection
77 db, err := dbUtils.InitSQLDB(
78 cfg.PostgreSQL.Port,
79 cfg.PostgreSQL.Host,
80 cfg.PostgreSQL.User,
81 cfg.PostgreSQL.Password,
82 cfg.PostgreSQL.Name,
83 )
84 if err != nil {
85 return nil, tracerr.Wrap(err)
86 }
87 var apiConnCon *dbUtils.APIConnectionController
88 if cfg.API.Explorer || mode == ModeCoordinator {
89 apiConnCon = dbUtils.NewAPICnnectionController(
90 cfg.API.MaxSQLConnections,
91 cfg.API.SQLConnectionTimeout.Duration,
92 )
93 }
94
95 historyDB := historydb.NewHistoryDB(db, apiConnCon)
96
97 ethClient, err := ethclient.Dial(cfg.Web3.URL)
98 if err != nil {
99 return nil, tracerr.Wrap(err)
100 }
101 var ethCfg eth.EthereumConfig
102 var account *accounts.Account
103 var keyStore *ethKeystore.KeyStore
104 if mode == ModeCoordinator {
105 ethCfg = eth.EthereumConfig{
106 CallGasLimit: 0, // cfg.Coordinator.EthClient.CallGasLimit,
107 GasPriceDiv: 0, // cfg.Coordinator.EthClient.GasPriceDiv,
108 }
109
110 scryptN := ethKeystore.StandardScryptN
111 scryptP := ethKeystore.StandardScryptP
112 if cfg.Coordinator.Debug.LightScrypt {
113 scryptN = ethKeystore.LightScryptN
114 scryptP = ethKeystore.LightScryptP
115 }
116 keyStore = ethKeystore.NewKeyStore(cfg.Coordinator.EthClient.Keystore.Path,
117 scryptN, scryptP)
118
119 // Unlock Coordinator ForgerAddr in the keystore to make calls
120 // to ForgeBatch in the smart contract
121 if !keyStore.HasAddress(cfg.Coordinator.ForgerAddress) {
122 return nil, tracerr.Wrap(fmt.Errorf(
123 "ethereum keystore doesn't have the key for address %v",
124 cfg.Coordinator.ForgerAddress))
125 }
126 account = &accounts.Account{
127 Address: cfg.Coordinator.ForgerAddress,
128 }
129 if err := keyStore.Unlock(*account,
130 cfg.Coordinator.EthClient.Keystore.Password); err != nil {
131 return nil, tracerr.Wrap(err)
132 }
133 log.Infow("Forger ethereum account unlocked in the keystore",
134 "addr", cfg.Coordinator.ForgerAddress)
135 }
136 client, err := eth.NewClient(ethClient, account, keyStore, ð.ClientConfig{
137 Ethereum: ethCfg,
138 Rollup: eth.RollupConfig{
139 Address: cfg.SmartContracts.Rollup,
140 },
141 Auction: eth.AuctionConfig{
142 Address: cfg.SmartContracts.Auction,
143 TokenHEZ: eth.TokenConfig{
144 Address: cfg.SmartContracts.TokenHEZ,
145 Name: cfg.SmartContracts.TokenHEZName,
146 },
147 },
148 WDelayer: eth.WDelayerConfig{
149 Address: cfg.SmartContracts.WDelayer,
150 },
151 })
152 if err != nil {
153 return nil, tracerr.Wrap(err)
154 }
155
156 chainID, err := client.EthChainID()
157 if err != nil {
158 return nil, tracerr.Wrap(err)
159 }
160 if !chainID.IsUint64() {
161 return nil, tracerr.Wrap(fmt.Errorf("chainID cannot be represented as uint64"))
162 }
163 chainIDU64 := chainID.Uint64()
164 const maxUint16 uint64 = 0xffff
165 if chainIDU64 > maxUint16 {
166 return nil, tracerr.Wrap(fmt.Errorf("chainID overflows uint16"))
167 }
168 chainIDU16 := uint16(chainIDU64)
169
170 const safeStateDBKeep = 128
171 if cfg.StateDB.Keep < safeStateDBKeep {
172 return nil, tracerr.Wrap(fmt.Errorf("cfg.StateDB.Keep = %v < %v, which is unsafe",
173 cfg.StateDB.Keep, safeStateDBKeep))
174 }
175 stateDB, err := statedb.NewStateDB(statedb.Config{
176 Path: cfg.StateDB.Path,
177 Keep: cfg.StateDB.Keep,
178 Type: statedb.TypeSynchronizer,
179 NLevels: statedb.MaxNLevels,
180 })
181 if err != nil {
182 return nil, tracerr.Wrap(err)
183 }
184
185 sync, err := synchronizer.NewSynchronizer(client, historyDB, stateDB, synchronizer.Config{
186 StatsRefreshPeriod: cfg.Synchronizer.StatsRefreshPeriod.Duration,
187 ChainID: chainIDU16,
188 })
189 if err != nil {
190 return nil, tracerr.Wrap(err)
191 }
192 initSCVars := sync.SCVars()
193
194 scConsts := synchronizer.SCConsts{
195 Rollup: *sync.RollupConstants(),
196 Auction: *sync.AuctionConstants(),
197 WDelayer: *sync.WDelayerConstants(),
198 }
199
200 var coord *coordinator.Coordinator
201 var l2DB *l2db.L2DB
202 if mode == ModeCoordinator {
203 l2DB = l2db.NewL2DB(
204 db,
205 cfg.Coordinator.L2DB.SafetyPeriod,
206 cfg.Coordinator.L2DB.MaxTxs,
207 cfg.Coordinator.L2DB.TTL.Duration,
208 apiConnCon,
209 )
210
211 // Unlock FeeAccount EthAddr in the keystore to generate the
212 // account creation authorization
213 if !keyStore.HasAddress(cfg.Coordinator.FeeAccount.Address) {
214 return nil, tracerr.Wrap(fmt.Errorf(
215 "ethereum keystore doesn't have the key for address %v",
216 cfg.Coordinator.FeeAccount.Address))
217 }
218 feeAccount := accounts.Account{
219 Address: cfg.Coordinator.FeeAccount.Address,
220 }
221 if err := keyStore.Unlock(feeAccount,
222 cfg.Coordinator.EthClient.Keystore.Password); err != nil {
223 return nil, tracerr.Wrap(err)
224 }
225 auth := &common.AccountCreationAuth{
226 EthAddr: cfg.Coordinator.FeeAccount.Address,
227 BJJ: cfg.Coordinator.FeeAccount.BJJ,
228 }
229 if err := auth.Sign(func(msg []byte) ([]byte, error) {
230 return keyStore.SignHash(feeAccount, msg)
231 }, chainIDU16, cfg.SmartContracts.Rollup); err != nil {
232 return nil, err
233 }
234 coordAccount := &txselector.CoordAccount{
235 Addr: cfg.Coordinator.FeeAccount.Address,
236 BJJ: cfg.Coordinator.FeeAccount.BJJ,
237 AccountCreationAuth: auth.Signature,
238 }
239 txSelector, err := txselector.NewTxSelector(coordAccount, cfg.Coordinator.TxSelector.Path, stateDB, l2DB)
240 if err != nil {
241 return nil, tracerr.Wrap(err)
242 }
243 batchBuilder, err := batchbuilder.NewBatchBuilder(cfg.Coordinator.BatchBuilder.Path,
244 stateDB, 0, uint64(cfg.Coordinator.Circuit.NLevels))
245 if err != nil {
246 return nil, tracerr.Wrap(err)
247 }
248 if err != nil {
249 return nil, tracerr.Wrap(err)
250 }
251 serverProofs := make([]prover.Client, len(cfg.Coordinator.ServerProofs))
252 for i, serverProofCfg := range cfg.Coordinator.ServerProofs {
253 serverProofs[i] = prover.NewProofServerClient(serverProofCfg.URL,
254 cfg.Coordinator.ProofServerPollInterval.Duration)
255 }
256
257 txProcessorCfg := txprocessor.Config{
258 NLevels: uint32(cfg.Coordinator.Circuit.NLevels),
259 MaxTx: uint32(cfg.Coordinator.Circuit.MaxTx),
260 ChainID: chainIDU16,
261 MaxFeeTx: common.RollupConstMaxFeeIdxCoordinator,
262 MaxL1Tx: common.RollupConstMaxL1Tx,
263 }
264 var verifierIdx int
265 if cfg.Coordinator.Debug.RollupVerifierIndex == nil {
266 verifierIdx, err = scConsts.Rollup.FindVerifierIdx(
267 cfg.Coordinator.Circuit.MaxTx,
268 cfg.Coordinator.Circuit.NLevels,
269 )
270 if err != nil {
271 return nil, tracerr.Wrap(err)
272 }
273 log.Infow("Found verifier that matches circuit config", "verifierIdx", verifierIdx)
274 } else {
275 verifierIdx = *cfg.Coordinator.Debug.RollupVerifierIndex
276 log.Infow("Using debug verifier index from config", "verifierIdx", verifierIdx)
277 if verifierIdx >= len(scConsts.Rollup.Verifiers) {
278 return nil, tracerr.Wrap(
279 fmt.Errorf("verifierIdx (%v) >= "+
280 "len(scConsts.Rollup.Verifiers) (%v)",
281 verifierIdx, len(scConsts.Rollup.Verifiers)))
282 }
283 verifier := scConsts.Rollup.Verifiers[verifierIdx]
284 if verifier.MaxTx != cfg.Coordinator.Circuit.MaxTx ||
285 verifier.NLevels != cfg.Coordinator.Circuit.NLevels {
286 return nil, tracerr.Wrap(
287 fmt.Errorf("Circuit config and verifier params don't match. "+
288 "circuit.MaxTx = %v, circuit.NLevels = %v, "+
289 "verifier.MaxTx = %v, verifier.NLevels = %v",
290 cfg.Coordinator.Circuit.MaxTx, cfg.Coordinator.Circuit.NLevels,
291 verifier.MaxTx, verifier.NLevels,
292 ))
293 }
294 }
295
296 coord, err = coordinator.NewCoordinator(
297 coordinator.Config{
298 ForgerAddress: cfg.Coordinator.ForgerAddress,
299 ConfirmBlocks: cfg.Coordinator.ConfirmBlocks,
300 L1BatchTimeoutPerc: cfg.Coordinator.L1BatchTimeoutPerc,
301 ForgeRetryInterval: cfg.Coordinator.ForgeRetryInterval.Duration,
302 ForgeDelay: cfg.Coordinator.ForgeDelay.Duration,
303 ForgeNoTxsDelay: cfg.Coordinator.ForgeNoTxsDelay.Duration,
304 SyncRetryInterval: cfg.Coordinator.SyncRetryInterval.Duration,
305 PurgeByExtDelInterval: cfg.Coordinator.PurgeByExtDelInterval.Duration,
306 EthClientAttempts: cfg.Coordinator.EthClient.Attempts,
307 EthClientAttemptsDelay: cfg.Coordinator.EthClient.AttemptsDelay.Duration,
308 EthNoReuseNonce: cfg.Coordinator.EthClient.NoReuseNonce,
309 EthTxResendTimeout: cfg.Coordinator.EthClient.TxResendTimeout.Duration,
310 MaxGasPrice: cfg.Coordinator.EthClient.MaxGasPrice,
311 GasPriceIncPerc: cfg.Coordinator.EthClient.GasPriceIncPerc,
312 TxManagerCheckInterval: cfg.Coordinator.EthClient.CheckLoopInterval.Duration,
313 DebugBatchPath: cfg.Coordinator.Debug.BatchPath,
314 Purger: coordinator.PurgerCfg{
315 PurgeBatchDelay: cfg.Coordinator.L2DB.PurgeBatchDelay,
316 InvalidateBatchDelay: cfg.Coordinator.L2DB.InvalidateBatchDelay,
317 PurgeBlockDelay: cfg.Coordinator.L2DB.PurgeBlockDelay,
318 InvalidateBlockDelay: cfg.Coordinator.L2DB.InvalidateBlockDelay,
319 },
320 VerifierIdx: uint8(verifierIdx),
321 TxProcessorConfig: txProcessorCfg,
322 },
323 historyDB,
324 l2DB,
325 txSelector,
326 batchBuilder,
327 serverProofs,
328 client,
329 &scConsts,
330 &synchronizer.SCVariables{
331 Rollup: *initSCVars.Rollup,
332 Auction: *initSCVars.Auction,
333 WDelayer: *initSCVars.WDelayer,
334 },
335 )
336 if err != nil {
337 return nil, tracerr.Wrap(err)
338 }
339 }
340 var nodeAPI *NodeAPI
341 if cfg.API.Address != "" {
342 if cfg.API.UpdateMetricsInterval.Duration == 0 {
343 return nil, tracerr.Wrap(fmt.Errorf("invalid cfg.API.UpdateMetricsInterval: %v",
344 cfg.API.UpdateMetricsInterval.Duration))
345 }
346 if cfg.API.UpdateRecommendedFeeInterval.Duration == 0 {
347 return nil, tracerr.Wrap(fmt.Errorf("invalid cfg.API.UpdateRecommendedFeeInterval: %v",
348 cfg.API.UpdateRecommendedFeeInterval.Duration))
349 }
350 server := gin.Default()
351 coord := false
352 if mode == ModeCoordinator {
353 coord = cfg.Coordinator.API.Coordinator
354 }
355 var err error
356 nodeAPI, err = NewNodeAPI(
357 cfg.API.Address,
358 coord, cfg.API.Explorer,
359 server,
360 historyDB,
361 stateDB,
362 l2DB,
363 &api.Config{
364 RollupConstants: scConsts.Rollup,
365 AuctionConstants: scConsts.Auction,
366 WDelayerConstants: scConsts.WDelayer,
367 ChainID: chainIDU16,
368 HermezAddress: cfg.SmartContracts.Rollup,
369 },
370 )
371 if err != nil {
372 return nil, tracerr.Wrap(err)
373 }
374 nodeAPI.api.SetRollupVariables(*initSCVars.Rollup)
375 nodeAPI.api.SetAuctionVariables(*initSCVars.Auction)
376 nodeAPI.api.SetWDelayerVariables(*initSCVars.WDelayer)
377 }
378 var debugAPI *debugapi.DebugAPI
379 if cfg.Debug.APIAddress != "" {
380 debugAPI = debugapi.NewDebugAPI(cfg.Debug.APIAddress, stateDB, sync)
381 }
382 priceUpdater, err := priceupdater.NewPriceUpdater(cfg.PriceUpdater.URL,
383 priceupdater.APIType(cfg.PriceUpdater.Type), historyDB)
384 if err != nil {
385 return nil, tracerr.Wrap(err)
386 }
387 ctx, cancel := context.WithCancel(context.Background())
388 return &Node{
389 nodeAPI: nodeAPI,
390 debugAPI: debugAPI,
391 priceUpdater: priceUpdater,
392 coord: coord,
393 sync: sync,
394 cfg: cfg,
395 mode: mode,
396 sqlConn: db,
397 ctx: ctx,
398 cancel: cancel,
399 }, nil
400}
401
402// NodeAPI holds the node http API
403type NodeAPI struct { //nolint:golint
404 api *api.API
405 engine *gin.Engine
406 addr string
407}
408
409func handleNoRoute(c *gin.Context) {
410 c.JSON(http.StatusNotFound, gin.H{
411 "error": "404 page not found",
412 })
413}
414
415// NewNodeAPI creates a new NodeAPI (which internally calls api.NewAPI)
416func NewNodeAPI(
417 addr string,
418 coordinatorEndpoints, explorerEndpoints bool,
419 server *gin.Engine,
420 hdb *historydb.HistoryDB,
421 sdb *statedb.StateDB,
422 l2db *l2db.L2DB,
423 config *api.Config,
424) (*NodeAPI, error) {
425 engine := gin.Default()
426 engine.NoRoute(handleNoRoute)
427 engine.Use(cors.Default())
428 _api, err := api.NewAPI(
429 coordinatorEndpoints, explorerEndpoints,
430 engine,
431 hdb,
432 l2db,
433 config,
434 )
435 if err != nil {
436 return nil, tracerr.Wrap(err)
437 }
438 return &NodeAPI{
439 addr: addr,
440 api: _api,
441 engine: engine,
442 }, nil
443}
444
445// Run starts the http server of the NodeAPI. To stop it, pass a context with
446// cancelation.
447func (a *NodeAPI) Run(ctx context.Context) error {
448 server := &http.Server{
449 Addr: a.addr,
450 Handler: a.engine,
451 // TODO: Figure out best parameters for production
452 ReadTimeout: 30 * time.Second, //nolint:gomnd
453 WriteTimeout: 30 * time.Second, //nolint:gomnd
454 MaxHeaderBytes: 1 << 20, //nolint:gomnd
455 }
456 go func() {
457 log.Infof("NodeAPI is ready at %v", a.addr)
458 if err := server.ListenAndServe(); err != nil && tracerr.Unwrap(err) != http.ErrServerClosed {
459 log.Fatalf("Listen: %s\n", err)
460 }
461 }()
462
463 <-ctx.Done()
464 log.Info("Stopping NodeAPI...")
465 ctxTimeout, cancel := context.WithTimeout(context.Background(), 10*time.Second) //nolint:gomnd
466 defer cancel()
467 if err := server.Shutdown(ctxTimeout); err != nil {
468 return tracerr.Wrap(err)
469 }
470 log.Info("NodeAPI done")
471 return nil
472}
473
474func (n *Node) handleNewBlock(ctx context.Context, stats *synchronizer.Stats, vars synchronizer.SCVariablesPtr,
475 batches []common.BatchData) {
476 if n.mode == ModeCoordinator {
477 n.coord.SendMsg(ctx, coordinator.MsgSyncBlock{
478 Stats: *stats,
479 Vars: vars,
480 Batches: batches,
481 })
482 }
483 if n.nodeAPI != nil {
484 if vars.Rollup != nil {
485 n.nodeAPI.api.SetRollupVariables(*vars.Rollup)
486 }
487 if vars.Auction != nil {
488 n.nodeAPI.api.SetAuctionVariables(*vars.Auction)
489 }
490 if vars.WDelayer != nil {
491 n.nodeAPI.api.SetWDelayerVariables(*vars.WDelayer)
492 }
493
494 if stats.Synced() {
495 if err := n.nodeAPI.api.UpdateNetworkInfo(
496 stats.Eth.LastBlock, stats.Sync.LastBlock,
497 common.BatchNum(stats.Eth.LastBatchNum),
498 stats.Sync.Auction.CurrentSlot.SlotNum,
499 ); err != nil {
500 log.Errorw("API.UpdateNetworkInfo", "err", err)
501 }
502 } else {
503 n.nodeAPI.api.UpdateNetworkInfoBlock(
504 stats.Eth.LastBlock, stats.Sync.LastBlock,
505 )
506 }
507 }
508}
509
510func (n *Node) handleReorg(ctx context.Context, stats *synchronizer.Stats, vars synchronizer.SCVariablesPtr) {
511 if n.mode == ModeCoordinator {
512 n.coord.SendMsg(ctx, coordinator.MsgSyncReorg{
513 Stats: *stats,
514 Vars: vars,
515 })
516 }
517 if n.nodeAPI != nil {
518 vars := n.sync.SCVars()
519 n.nodeAPI.api.SetRollupVariables(*vars.Rollup)
520 n.nodeAPI.api.SetAuctionVariables(*vars.Auction)
521 n.nodeAPI.api.SetWDelayerVariables(*vars.WDelayer)
522 n.nodeAPI.api.UpdateNetworkInfoBlock(
523 stats.Eth.LastBlock, stats.Sync.LastBlock,
524 )
525 }
526}
527
528// TODO(Edu): Consider keeping the `lastBlock` inside synchronizer so that we
529// don't have to pass it around.
530func (n *Node) syncLoopFn(ctx context.Context, lastBlock *common.Block) (*common.Block, time.Duration, error) {
531 blockData, discarded, err := n.sync.Sync2(ctx, lastBlock)
532 stats := n.sync.Stats()
533 if err != nil {
534 // case: error
535 return nil, n.cfg.Synchronizer.SyncLoopInterval.Duration, tracerr.Wrap(err)
536 } else if discarded != nil {
537 // case: reorg
538 log.Infow("Synchronizer.Sync reorg", "discarded", *discarded)
539 vars := n.sync.SCVars()
540 n.handleReorg(ctx, stats, vars)
541 return nil, time.Duration(0), nil
542 } else if blockData != nil {
543 // case: new block
544 vars := synchronizer.SCVariablesPtr{
545 Rollup: blockData.Rollup.Vars,
546 Auction: blockData.Auction.Vars,
547 WDelayer: blockData.WDelayer.Vars,
548 }
549 n.handleNewBlock(ctx, stats, vars, blockData.Rollup.Batches)
550 return &blockData.Block, time.Duration(0), nil
551 } else {
552 // case: no block
553 return lastBlock, n.cfg.Synchronizer.SyncLoopInterval.Duration, nil
554 }
555}
556
557// StartSynchronizer starts the synchronizer
558func (n *Node) StartSynchronizer() {
559 log.Info("Starting Synchronizer...")
560
561 // Trigger a manual call to handleNewBlock with the loaded state of the
562 // synchronizer in order to quickly activate the API and Coordinator
563 // and avoid waiting for the next block. Without this, the API and
564 // Coordinator will not react until the following block (starting from
565 // the last synced one) is synchronized
566 stats := n.sync.Stats()
567 vars := n.sync.SCVars()
568 n.handleNewBlock(n.ctx, stats, vars, []common.BatchData{})
569
570 n.wg.Add(1)
571 go func() {
572 var err error
573 var lastBlock *common.Block
574 waitDuration := time.Duration(0)
575 for {
576 select {
577 case <-n.ctx.Done():
578 log.Info("Synchronizer done")
579 n.wg.Done()
580 return
581 case <-time.After(waitDuration):
582 if lastBlock, waitDuration, err = n.syncLoopFn(n.ctx,
583 lastBlock); err != nil {
584 if n.ctx.Err() != nil {
585 continue
586 }
587 if errors.Is(err, eth.ErrBlockHashMismatchEvent) {
588 log.Warnw("Synchronizer.Sync", "err", err)
589 } else if errors.Is(err, synchronizer.ErrUnknownBlock) {
590 log.Warnw("Synchronizer.Sync", "err", err)
591 } else {
592 log.Errorw("Synchronizer.Sync", "err", err)
593 }
594 }
595 }
596 }
597 }()
598
599 n.wg.Add(1)
600 go func() {
601 for {
602 select {
603 case <-n.ctx.Done():
604 log.Info("PriceUpdater done")
605 n.wg.Done()
606 return
607 case <-time.After(n.cfg.PriceUpdater.Interval.Duration):
608 if err := n.priceUpdater.UpdateTokenList(); err != nil {
609 log.Errorw("PriceUpdater.UpdateTokenList()", "err", err)
610 }
611 n.priceUpdater.UpdatePrices(n.ctx)
612 }
613 }
614 }()
615}
616
617// StartDebugAPI starts the DebugAPI
618func (n *Node) StartDebugAPI() {
619 log.Info("Starting DebugAPI...")
620 n.wg.Add(1)
621 go func() {
622 defer func() {
623 log.Info("DebugAPI routine stopped")
624 n.wg.Done()
625 }()
626 if err := n.debugAPI.Run(n.ctx); err != nil {
627 if n.ctx.Err() != nil {
628 return
629 }
630 log.Fatalw("DebugAPI.Run", "err", err)
631 }
632 }()
633}
634
635// StartNodeAPI starts the NodeAPI
636func (n *Node) StartNodeAPI() {
637 log.Info("Starting NodeAPI...")
638 n.wg.Add(1)
639 go func() {
640 defer func() {
641 log.Info("NodeAPI routine stopped")
642 n.wg.Done()
643 }()
644 if err := n.nodeAPI.Run(n.ctx); err != nil {
645 if n.ctx.Err() != nil {
646 return
647 }
648 log.Fatalw("NodeAPI.Run", "err", err)
649 }
650 }()
651
652 n.wg.Add(1)
653 go func() {
654 for {
655 select {
656 case <-n.ctx.Done():
657 log.Info("API.UpdateMetrics loop done")
658 n.wg.Done()
659 return
660 case <-time.After(n.cfg.API.UpdateMetricsInterval.Duration):
661 if err := n.nodeAPI.api.UpdateMetrics(); err != nil {
662 log.Errorw("API.UpdateMetrics", "err", err)
663 }
664 }
665 }
666 }()
667
668 n.wg.Add(1)
669 go func() {
670 for {
671 select {
672 case <-n.ctx.Done():
673 log.Info("API.UpdateRecommendedFee loop done")
674 n.wg.Done()
675 return
676 case <-time.After(n.cfg.API.UpdateRecommendedFeeInterval.Duration):
677 if err := n.nodeAPI.api.UpdateRecommendedFee(); err != nil {
678 log.Errorw("API.UpdateRecommendedFee", "err", err)
679 }
680 }
681 }
682 }()
683}
684
685// Start the node
686func (n *Node) Start() {
687 log.Infow("Starting node...", "mode", n.mode)
688 if n.debugAPI != nil {
689 n.StartDebugAPI()
690 }
691 if n.nodeAPI != nil {
692 n.StartNodeAPI()
693 }
694 if n.mode == ModeCoordinator {
695 log.Info("Starting Coordinator...")
696 n.coord.Start()
697 }
698 n.StartSynchronizer()
699}
700
701// Stop the node
702func (n *Node) Stop() {
703 log.Infow("Stopping node...")
704 n.cancel()
705 n.wg.Wait()
706 if n.mode == ModeCoordinator {
707 log.Info("Stopping Coordinator...")
708 n.coord.Stop()
709 }
710 // Close kv DBs
711 n.sync.StateDB().Close()
712 if n.mode == ModeCoordinator {
713 n.coord.TxSelector().LocalAccountsDB().Close()
714 n.coord.BatchBuilder().LocalStateDB().Close()
715 }
716}