forked from stellar/go
/
fsm.go
993 lines (830 loc) · 27.8 KB
/
fsm.go
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package ingest
import (
"fmt"
"strings"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/stellar/go/ingest"
"github.com/stellar/go/ingest/ledgerbackend"
"github.com/stellar/go/services/horizon/internal/ingest/processors"
"github.com/stellar/go/services/horizon/internal/toid"
"github.com/stellar/go/support/errors"
logpkg "github.com/stellar/go/support/log"
)
var (
defaultSleep = time.Second
// ErrReingestRangeConflict indicates that the reingest range overlaps with
// horizon's most recently ingested ledger
ErrReingestRangeConflict = errors.New("reingest range overlaps with horizon ingestion")
)
type stateMachineNode interface {
run(*system) (transition, error)
String() string
}
type transition struct {
node stateMachineNode
sleepDuration time.Duration
}
func stop() transition {
return transition{node: stopState{}, sleepDuration: 0}
}
func start() transition {
return transition{node: startState{}, sleepDuration: defaultSleep}
}
// startSuggestedCheckpoint is a transition to start `state` but with a suggested
// checkpoint to use if the following step is `buildState`.
// This is required because some ledger backends (like captive core) require some
// time to prepare a requested range and have a small buffer of ledgers available
// to fetch using GetLedger.
// It's possible that a new checkpoint will be created while a range is prepared.
// Because ledgers are kept in a buffer `GetLatestLedgerSequence` returns the latest
// sequence available in a buffer, not in a network. This would make bucket hash
// verification failures because the code would wrongly assume that the ledger is
// not available.
func startSuggestedCheckpoint(checkpoint uint32) transition {
return transition{
node: startState{
suggestedCheckpoint: checkpoint,
},
sleepDuration: defaultSleep,
}
}
func rebuild(checkpointLedger uint32) transition {
return transition{
node: buildState{
checkpointLedger: checkpointLedger,
},
sleepDuration: defaultSleep,
}
}
func resume(latestSuccessfullyProcessedLedger uint32) transition {
return transition{
node: resumeState{
latestSuccessfullyProcessedLedger: latestSuccessfullyProcessedLedger,
},
sleepDuration: defaultSleep,
}
}
func resumeImmediately(latestSuccessfullyProcessedLedger uint32) transition {
return transition{
node: resumeState{
latestSuccessfullyProcessedLedger: latestSuccessfullyProcessedLedger,
},
sleepDuration: 0,
}
}
func retryResume(r resumeState) transition {
return transition{
node: r,
sleepDuration: defaultSleep,
}
}
func historyRange(fromLedger, toLedger uint32) transition {
return transition{
node: historyRangeState{
fromLedger: fromLedger,
toLedger: toLedger,
},
sleepDuration: defaultSleep,
}
}
func waitForCheckPoint() transition {
return transition{
node: waitForCheckpointState{},
sleepDuration: 0,
}
}
type stopState struct{}
func (stopState) String() string {
return "stop"
}
func (stopState) run(s *system) (transition, error) {
return stop(), errors.New("Cannot run terminal state")
}
type startState struct {
suggestedCheckpoint uint32
}
func (startState) String() string {
return "start"
}
func (state startState) run(s *system) (transition, error) {
if err := s.historyQ.Begin(); err != nil {
return start(), errors.Wrap(err, "Error starting a transaction")
}
defer s.historyQ.Rollback()
// This will get the value `FOR UPDATE`, blocking it for other nodes.
lastIngestedLedger, err := s.historyQ.GetLastLedgerIngest()
if err != nil {
return start(), errors.Wrap(err, getLastIngestedErrMsg)
}
ingestVersion, err := s.historyQ.GetIngestVersion()
if err != nil {
return start(), errors.Wrap(err, getIngestVersionErrMsg)
}
if ingestVersion > CurrentVersion {
log.WithFields(logpkg.F{
"ingestVersion": ingestVersion,
"currentVersion": CurrentVersion,
}).Info("ingestion version in db is greater than current version, going to terminate")
return stop(), nil
}
lastHistoryLedger, err := s.historyQ.GetLatestLedger()
if err != nil {
return start(), errors.Wrap(err, "Error getting last history ledger sequence")
}
if ingestVersion != CurrentVersion || lastIngestedLedger == 0 {
// This block is either starting from empty state or ingestion
// version upgrade.
// This will always run on a single instance due to the fact that
// `LastLedgerIngest` value is blocked for update and will always
// be updated when leading instance finishes processing state.
// In case of errors it will start `Init` from the beginning.
var lastCheckpoint uint32
if state.suggestedCheckpoint != 0 {
lastCheckpoint = state.suggestedCheckpoint
} else {
lastCheckpoint, err = s.historyAdapter.GetLatestLedgerSequence()
if err != nil {
return start(), errors.Wrap(err, "Error getting last checkpoint")
}
}
if lastHistoryLedger != 0 {
// There are ledgers in history_ledgers table. This means that the
// old or new ingest system was running prior the upgrade. In both
// cases we need to:
// * Wait for the checkpoint ledger if the latest history ledger is
// greater that the latest checkpoint ledger.
// * Catchup history data if the latest history ledger is less than
// the latest checkpoint ledger.
// * Build state from the last checkpoint if the latest history ledger
// is equal to the latest checkpoint ledger.
switch {
case lastHistoryLedger > lastCheckpoint:
return waitForCheckPoint(), nil
case lastHistoryLedger < lastCheckpoint:
return historyRange(lastHistoryLedger+1, lastCheckpoint), nil
default: // lastHistoryLedger == lastCheckpoint
// Build state but make sure it's using `lastCheckpoint`. It's possible
// that the new checkpoint will be created during state transition.
return rebuild(lastCheckpoint), nil
}
}
return rebuild(lastCheckpoint), nil
}
switch {
case lastHistoryLedger > lastIngestedLedger:
// Ingestion was running at some point the past but was turned off.
// Now it's on by default but the latest history ledger is greater
// than the latest ingest ledger. We reset the exp ledger sequence
// so init state will rebuild the state correctly.
err = s.historyQ.UpdateLastLedgerIngest(0)
if err != nil {
return start(), errors.Wrap(err, updateLastLedgerIngestErrMsg)
}
err = s.historyQ.Commit()
if err != nil {
return start(), errors.Wrap(err, commitErrMsg)
}
return start(), nil
// lastHistoryLedger != 0 check is here to check the case when one node ingested
// the state (so latest ingestion is > 0) but no history has been ingested yet.
// In such case we execute default case and resume from the last ingested
// ledger.
case lastHistoryLedger != 0 && lastHistoryLedger < lastIngestedLedger:
// Ingestion was running at some point the past but was turned off.
// Now it's on by default but the latest history ledger is less
// than the latest ingest ledger. We catchup history.
return historyRange(lastHistoryLedger+1, lastIngestedLedger), nil
default: // lastHistoryLedger == lastIngestedLedger
// The other node already ingested a state (just now or in the past)
// so we need to get offers from a DB, then resume session normally.
// State pipeline is NOT processed.
log.WithField("last_ledger", lastIngestedLedger).
Info("Resuming ingestion system from last processed ledger...")
return resume(lastIngestedLedger), nil
}
}
type buildState struct {
checkpointLedger uint32
stop bool
}
func (b buildState) String() string {
return fmt.Sprintf("buildFromCheckpoint(checkpointLedger=%d)", b.checkpointLedger)
}
func (b buildState) run(s *system) (transition, error) {
var nextFailState = start()
if b.stop {
nextFailState = stop()
}
if b.checkpointLedger == 0 {
return nextFailState, errors.New("unexpected checkpointLedger value")
}
if err := s.historyQ.Begin(); err != nil {
return nextFailState, errors.Wrap(err, "Error starting a transaction")
}
defer s.historyQ.Rollback()
// We need to get this value `FOR UPDATE` so all other instances
// are blocked.
lastIngestedLedger, err := s.historyQ.GetLastLedgerIngest()
if err != nil {
return nextFailState, errors.Wrap(err, getLastIngestedErrMsg)
}
ingestVersion, err := s.historyQ.GetIngestVersion()
if err != nil {
return nextFailState, errors.Wrap(err, getIngestVersionErrMsg)
}
// Double check if we should proceed with state ingestion. It's possible that
// another ingesting instance will be redirected to this state from `init`
// but it's first to complete the task.
if ingestVersion == CurrentVersion && lastIngestedLedger > 0 {
log.Info("Another instance completed `buildState`. Skipping...")
return nextFailState, nil
}
if err = s.updateCursor(b.checkpointLedger - 1); err != nil {
// Don't return updateCursor error.
log.WithError(err).Warn("error updating stellar-core cursor")
}
log.Info("Starting ingestion system from empty state...")
// Clear last_ingested_ledger in key value store
err = s.historyQ.UpdateLastLedgerIngest(0)
if err != nil {
return nextFailState, errors.Wrap(err, updateLastLedgerIngestErrMsg)
}
// Clear invalid state in key value store. It's possible that upgraded
// ingestion is fixing it.
err = s.historyQ.UpdateExpStateInvalid(false)
if err != nil {
return nextFailState, errors.Wrap(err, updateExpStateInvalidErrMsg)
}
// State tables should be empty.
err = s.historyQ.TruncateIngestStateTables()
if err != nil {
return nextFailState, errors.Wrap(err, "Error clearing ingest tables")
}
// We don't need to prepare range for genesis checkpoint.
if b.checkpointLedger != 1 {
var lockReleased bool
lockReleased, err = s.maybePrepareRange(b.checkpointLedger)
if err != nil {
return nextFailState, err
} else if lockReleased {
return startSuggestedCheckpoint(b.checkpointLedger), nil
}
}
log.WithFields(logpkg.F{
"ledger": b.checkpointLedger,
}).Info("Processing state")
startTime := time.Now()
stats, err := s.runner.RunHistoryArchiveIngestion(b.checkpointLedger)
if err != nil {
return nextFailState, errors.Wrap(err, "Error ingesting history archive")
}
if err = s.historyQ.UpdateIngestVersion(CurrentVersion); err != nil {
return nextFailState, errors.Wrap(err, "Error updating ingestion version")
}
if err = s.completeIngestion(b.checkpointLedger); err != nil {
return nextFailState, err
}
log.
WithFields(stats.Map()).
WithFields(logpkg.F{
"ledger": b.checkpointLedger,
"duration": time.Since(startTime).Seconds(),
}).
Info("Processed state")
if b.stop {
return stop(), nil
}
// If successful, continue from the next ledger
return resume(b.checkpointLedger), nil
}
type resumeState struct {
latestSuccessfullyProcessedLedger uint32
}
func (r resumeState) String() string {
return fmt.Sprintf("resume(latestSuccessfullyProcessedLedger=%d)", r.latestSuccessfullyProcessedLedger)
}
func (r resumeState) run(s *system) (transition, error) {
if r.latestSuccessfullyProcessedLedger == 0 {
return start(), errors.New("unexpected latestSuccessfullyProcessedLedger value")
}
s.metrics.LocalLatestLedger.Set(float64(r.latestSuccessfullyProcessedLedger))
if err := s.historyQ.Begin(); err != nil {
return retryResume(r),
errors.Wrap(err, "Error starting a transaction")
}
defer s.historyQ.Rollback()
// This will get the value `FOR UPDATE`, blocking it for other nodes.
lastIngestedLedger, err := s.historyQ.GetLastLedgerIngest()
if err != nil {
return retryResume(r), errors.Wrap(err, getLastIngestedErrMsg)
}
ingestLedger := r.latestSuccessfullyProcessedLedger + 1
if ingestLedger > lastIngestedLedger+1 {
return start(), errors.New("expected ingest ledger to be at most one greater " +
"than last ingested ledger in db")
} else if ingestLedger <= lastIngestedLedger {
log.WithField("ingestLedger", ingestLedger).
WithField("lastIngestedLedger", lastIngestedLedger).
Info("bumping ingest ledger to next ledger after ingested ledger in db")
ingestLedger = lastIngestedLedger + 1
}
ingestVersion, err := s.historyQ.GetIngestVersion()
if err != nil {
return retryResume(r), errors.Wrap(err, getIngestVersionErrMsg)
}
if ingestVersion != CurrentVersion {
log.WithFields(logpkg.F{
"ingestVersion": ingestVersion,
"currentVersion": CurrentVersion,
}).Info("ingestion version in db is not current, going back to start state")
return start(), nil
}
lastHistoryLedger, err := s.historyQ.GetLatestLedger()
if err != nil {
return retryResume(r), errors.Wrap(err, "could not get latest history ledger")
}
if lastHistoryLedger != 0 && lastHistoryLedger != lastIngestedLedger {
log.WithFields(logpkg.F{
"lastHistoryLedger": lastHistoryLedger,
"lastIngestedLedger": lastIngestedLedger,
}).Info(
"last history ledger does not match last ingested ledger, " +
"going back to start state",
)
return start(), nil
}
lockReleased, err := s.maybePrepareRange(ingestLedger)
if lockReleased || err != nil {
return start(), err
}
// Check if ledger is closed
latestLedgerCore, err := s.ledgerBackend.GetLatestLedgerSequence()
if err != nil {
return retryResume(r), errors.Wrap(err, "Error getting lastest ledger in stellar-core")
}
if latestLedgerCore < ingestLedger {
logger := log.WithFields(logpkg.F{
"ingest_sequence": ingestLedger,
"core_sequence": latestLedgerCore,
})
// Will fast-forward to the latest ledger in a buffer in case of captive core.
_, _, err = s.ledgerBackend.GetLedger(latestLedgerCore)
if err != nil {
return retryResume(r), errors.Wrap(err, "Error fast-forwarding to the latest ledger in stellar-core")
}
if latestLedgerCore == ingestLedger-1 {
logger.Info("Waiting for ledger to be available in stellar-core")
} else {
logger.Info("Fast-forward to the latest ledger ingested in the cluster")
}
return retryResume(resumeState{
latestSuccessfullyProcessedLedger: latestLedgerCore,
}), nil
}
startTime := time.Now()
log.WithFields(logpkg.F{
"sequence": ingestLedger,
"state": true,
"ledger": true,
"commit": true,
}).Info("Processing ledger")
changeStats, changeDurations, transactionStats, transactionDurations, err :=
s.runner.RunAllProcessorsOnLedger(ingestLedger)
if err != nil {
return retryResume(r), errors.Wrap(err, "Error running processors on ledger")
}
if err = s.completeIngestion(ingestLedger); err != nil {
return retryResume(r), err
}
if err = s.updateCursor(ingestLedger); err != nil {
// Don't return updateCursor error.
log.WithError(err).Warn("error updating stellar-core cursor")
}
duration := time.Since(startTime).Seconds()
s.Metrics().LedgerIngestionDuration.Observe(float64(duration))
// Update stats metrics
changeStatsMap := changeStats.Map()
r.addLedgerStatsMetricFromMap(s, "change", changeStatsMap)
r.addProcessorDurationsMetricFromMap(s, changeDurations)
transactionStatsMap := transactionStats.Map()
r.addLedgerStatsMetricFromMap(s, "ledger", transactionStatsMap)
r.addProcessorDurationsMetricFromMap(s, transactionDurations)
log.
WithFields(changeStatsMap).
WithFields(transactionStatsMap).
WithFields(logpkg.F{
"sequence": ingestLedger,
"duration": duration,
"state": true,
"ledger": true,
"commit": true,
}).
Info("Processed ledger")
s.maybeVerifyState(ingestLedger)
return resumeImmediately(ingestLedger), nil
}
func (r resumeState) addLedgerStatsMetricFromMap(s *system, prefix string, m map[string]interface{}) {
for stat, value := range m {
stat = strings.Replace(stat, "stats_", prefix+"_", 1)
s.Metrics().LedgerStatsCounter.
With(prometheus.Labels{"type": stat}).Add(float64(value.(int64)))
}
}
func (r resumeState) addProcessorDurationsMetricFromMap(s *system, m map[string]time.Duration) {
for processorName, value := range m {
// * is not accepted in Prometheus labels
processorName = strings.Replace(processorName, "*", "", -1)
s.Metrics().ProcessorsRunDuration.
With(prometheus.Labels{"name": processorName}).Add(value.Seconds())
}
}
type historyRangeState struct {
fromLedger uint32
toLedger uint32
}
func (h historyRangeState) String() string {
return fmt.Sprintf(
"historyRange(fromLedger=%d, toLedger=%d)",
h.fromLedger,
h.toLedger,
)
}
// historyRangeState is used when catching up history data
func (h historyRangeState) run(s *system) (transition, error) {
if h.fromLedger == 0 || h.toLedger == 0 ||
h.fromLedger > h.toLedger {
return start(), errors.Errorf("invalid range: [%d, %d]", h.fromLedger, h.toLedger)
}
if err := s.historyQ.Begin(); err != nil {
return start(), errors.Wrap(err, "Error starting a transaction")
}
defer s.historyQ.Rollback()
// acquire distributed lock so no one else can perform ingestion operations.
if _, err := s.historyQ.GetLastLedgerIngest(); err != nil {
return start(), errors.Wrap(err, getLastIngestedErrMsg)
}
lastHistoryLedger, err := s.historyQ.GetLatestLedger()
if err != nil {
return start(), errors.Wrap(err, "could not get latest history ledger")
}
// We should be ingesting the ledger which occurs after
// lastHistoryLedger. Otherwise, some other horizon node has
// already completed the ingest history range operation and
// we should go back to the init state
if lastHistoryLedger != h.fromLedger-1 {
return start(), nil
}
lockReleased, err := s.maybePrepareRange(h.fromLedger)
if lockReleased || err != nil {
return start(), err
}
for cur := h.fromLedger; cur <= h.toLedger; cur++ {
if err = runTransactionProcessorsOnLedger(s, cur); err != nil {
return start(), err
}
}
if err = s.historyQ.Commit(); err != nil {
return start(), errors.Wrap(err, commitErrMsg)
}
return start(), nil
}
func runTransactionProcessorsOnLedger(s *system, ledger uint32) error {
log.WithFields(logpkg.F{
"sequence": ledger,
"state": false,
"ledger": true,
"commit": false,
}).Info("Processing ledger")
startTime := time.Now()
ledgerTransactionStats, _, err := s.runner.RunTransactionProcessorsOnLedger(ledger)
if err != nil {
return errors.Wrap(err, fmt.Sprintf("error processing ledger sequence=%d", ledger))
}
log.
WithFields(ledgerTransactionStats.Map()).
WithFields(logpkg.F{
"sequence": ledger,
"duration": time.Since(startTime).Seconds(),
"state": false,
"ledger": true,
"commit": false,
}).
Info("Processed ledger")
return nil
}
type reingestHistoryRangeState struct {
fromLedger uint32
toLedger uint32
force bool
}
func (h reingestHistoryRangeState) String() string {
return fmt.Sprintf(
"reingestHistoryRange(fromLedger=%d, toLedger=%d, force=%t)",
h.fromLedger,
h.toLedger,
h.force,
)
}
func (h reingestHistoryRangeState) ingestRange(s *system, fromLedger, toLedger uint32) error {
if s.historyQ.GetTx() == nil {
return errors.New("expected transaction to be present")
}
// Clear history data before ingesting - used in `reingest range` command.
start, end, err := toid.LedgerRangeInclusive(
int32(fromLedger),
int32(toLedger),
)
if err != nil {
return errors.Wrap(err, "Invalid range")
}
err = s.historyQ.DeleteRangeAll(start, end)
if err != nil {
return errors.Wrap(err, "error in DeleteRangeAll")
}
for cur := fromLedger; cur <= toLedger; cur++ {
if err = runTransactionProcessorsOnLedger(s, cur); err != nil {
return err
}
}
return nil
}
// reingestHistoryRangeState is used as a command to reingest historical data
func (h reingestHistoryRangeState) run(s *system) (transition, error) {
if h.fromLedger == 0 || h.toLedger == 0 ||
h.fromLedger > h.toLedger {
return stop(), errors.Errorf("invalid range: [%d, %d]", h.fromLedger, h.toLedger)
}
if h.fromLedger == 1 {
log.Warn("Ledger 1 is pregenerated and not available, starting from ledger 2.")
h.fromLedger = 2
}
log.WithFields(logpkg.F{
"from": h.fromLedger,
"to": h.toLedger,
}).Info("Preparing ledger backend to retrieve range")
startTime := time.Now()
err := s.ledgerBackend.PrepareRange(ledgerbackend.BoundedRange(h.fromLedger, h.toLedger))
if err != nil {
return stop(), errors.Wrap(err, "error preparing range")
}
log.WithFields(logpkg.F{
"from": h.fromLedger,
"to": h.toLedger,
"duration": time.Since(startTime).Seconds(),
}).Info("Range ready")
startTime = time.Now()
if h.force {
if err := s.historyQ.Begin(); err != nil {
return stop(), errors.Wrap(err, "Error starting a transaction")
}
defer s.historyQ.Rollback()
// acquire distributed lock so no one else can perform ingestion operations.
if _, err := s.historyQ.GetLastLedgerIngest(); err != nil {
return stop(), errors.Wrap(err, getLastIngestedErrMsg)
}
if err := h.ingestRange(s, h.fromLedger, h.toLedger); err != nil {
return stop(), err
}
if err := s.historyQ.Commit(); err != nil {
return stop(), errors.Wrap(err, commitErrMsg)
}
} else {
lastIngestedLedger, err := s.historyQ.GetLastLedgerIngestNonBlocking()
if err != nil {
return stop(), errors.Wrap(err, getLastIngestedErrMsg)
}
if lastIngestedLedger > 0 && h.toLedger >= lastIngestedLedger {
return stop(), ErrReingestRangeConflict
}
for cur := h.fromLedger; cur <= h.toLedger; cur++ {
err := func(ledger uint32) error {
if err := s.historyQ.Begin(); err != nil {
return errors.Wrap(err, "Error starting a transaction")
}
defer s.historyQ.Rollback()
// ingest each ledger in a separate transaction to prevent deadlocks
// when acquiring ShareLocks from multiple parallel reingest range processes
if err := h.ingestRange(s, ledger, ledger); err != nil {
return err
}
if err := s.historyQ.Commit(); err != nil {
return errors.Wrap(err, commitErrMsg)
}
return nil
}(cur)
if err != nil {
return stop(), err
}
}
}
log.WithFields(logpkg.F{
"from": h.fromLedger,
"to": h.toLedger,
"duration": time.Since(startTime).Seconds(),
}).Info("Reingestion done")
return stop(), nil
}
type waitForCheckpointState struct{}
func (waitForCheckpointState) String() string {
return "waitForCheckpoint"
}
func (waitForCheckpointState) run(*system) (transition, error) {
log.Info("Waiting for the next checkpoint...")
time.Sleep(10 * time.Second)
return start(), nil
}
type verifyRangeState struct {
fromLedger uint32
toLedger uint32
verifyState bool
}
func (v verifyRangeState) String() string {
return fmt.Sprintf(
"verifyRange(fromLedger=%d, toLedger=%d, verifyState=%t)",
v.fromLedger,
v.toLedger,
v.verifyState,
)
}
func (v verifyRangeState) run(s *system) (transition, error) {
if v.fromLedger == 0 || v.toLedger == 0 ||
v.fromLedger > v.toLedger {
return stop(), errors.Errorf("invalid range: [%d, %d]", v.fromLedger, v.toLedger)
}
if err := s.historyQ.Begin(); err != nil {
err = errors.Wrap(err, "Error starting a transaction")
return stop(), err
}
defer s.historyQ.Rollback()
// Simple check if DB clean
lastIngestedLedger, err := s.historyQ.GetLastLedgerIngest()
if err != nil {
err = errors.Wrap(err, getLastIngestedErrMsg)
return stop(), err
}
if lastIngestedLedger != 0 {
err = errors.New("Database not empty")
return stop(), err
}
log.WithField("ledger", v.fromLedger).Info("Preparing range")
startTime := time.Now()
err = s.ledgerBackend.PrepareRange(ledgerbackend.BoundedRange(v.fromLedger, v.toLedger))
if err != nil {
return stop(), errors.Wrap(err, "Error preparing range")
}
log.WithFields(logpkg.F{
"ledger": v.fromLedger,
"duration": time.Since(startTime).Seconds(),
}).Info("Range prepared")
log.WithField("ledger", v.fromLedger).Info("Processing state")
startTime = time.Now()
stats, err := s.runner.RunHistoryArchiveIngestion(v.fromLedger)
if err != nil {
err = errors.Wrap(err, "Error ingesting history archive")
return stop(), err
}
if err = s.completeIngestion(v.fromLedger); err != nil {
return stop(), err
}
log.
WithFields(stats.Map()).
WithFields(logpkg.F{
"ledger": v.fromLedger,
"duration": time.Since(startTime).Seconds(),
}).
Info("Processed state")
for sequence := v.fromLedger + 1; sequence <= v.toLedger; sequence++ {
log.WithFields(logpkg.F{
"sequence": sequence,
"state": true,
"ledger": true,
"commit": true,
}).Info("Processing ledger")
startTime := time.Now()
if err = s.historyQ.Begin(); err != nil {
err = errors.Wrap(err, "Error starting a transaction")
return stop(), err
}
var changeStats ingest.StatsChangeProcessorResults
var ledgerTransactionStats processors.StatsLedgerTransactionProcessorResults
changeStats, _, ledgerTransactionStats, _, err = s.runner.RunAllProcessorsOnLedger(sequence)
if err != nil {
err = errors.Wrap(err, "Error running processors on ledger")
return stop(), err
}
if err = s.completeIngestion(sequence); err != nil {
return stop(), err
}
log.
WithFields(changeStats.Map()).
WithFields(ledgerTransactionStats.Map()).
WithFields(logpkg.F{
"sequence": sequence,
"duration": time.Since(startTime).Seconds(),
"state": true,
"ledger": true,
"commit": true,
}).
Info("Processed ledger")
}
if v.verifyState {
err = s.verifyState(false)
}
return stop(), err
}
type stressTestState struct{}
func (stressTestState) String() string {
return "stressTest"
}
func (stressTestState) run(s *system) (transition, error) {
if err := s.historyQ.Begin(); err != nil {
err = errors.Wrap(err, "Error starting a transaction")
return stop(), err
}
defer s.historyQ.Rollback()
// Simple check if DB clean
lastIngestedLedger, err := s.historyQ.GetLastLedgerIngest()
if err != nil {
err = errors.Wrap(err, getLastIngestedErrMsg)
return stop(), err
}
if lastIngestedLedger != 0 {
err = errors.New("Database not empty")
return stop(), err
}
curHeap, sysHeap := getMemStats()
sequence := lastIngestedLedger + 1
log.WithFields(logpkg.F{
"currentHeapSizeMB": curHeap,
"systemHeapSizeMB": sysHeap,
"sequence": sequence,
"state": true,
"ledger": true,
"commit": true,
}).Info("Processing ledger")
startTime := time.Now()
changeStats, _, ledgerTransactionStats, _, err := s.runner.RunAllProcessorsOnLedger(sequence)
if err != nil {
err = errors.Wrap(err, "Error running processors on ledger")
return stop(), err
}
if err = s.completeIngestion(sequence); err != nil {
return stop(), err
}
curHeap, sysHeap = getMemStats()
log.
WithFields(changeStats.Map()).
WithFields(ledgerTransactionStats.Map()).
WithFields(logpkg.F{
"currentHeapSizeMB": curHeap,
"systemHeapSizeMB": sysHeap,
"sequence": sequence,
"duration": time.Since(startTime).Seconds(),
"state": true,
"ledger": true,
"commit": true,
}).
Info("Processed ledger")
return stop(), nil
}
func (s *system) completeIngestion(ledger uint32) error {
if ledger == 0 {
return errors.New("ledger must be positive")
}
if err := s.historyQ.UpdateLastLedgerIngest(ledger); err != nil {
err = errors.Wrap(err, updateLastLedgerIngestErrMsg)
return err
}
if err := s.historyQ.Commit(); err != nil {
return errors.Wrap(err, commitErrMsg)
}
return nil
}
// maybePrepareRange checks if the range is prepared and returns false in that case.
// If the range is not prepared, maybePrepareRange() releases the distributed ingestion lock,
// prepares the range, and returns true.
func (s *system) maybePrepareRange(from uint32) (bool, error) {
ledgerRange := ledgerbackend.UnboundedRange(from)
prepared, err := s.ledgerBackend.IsPrepared(ledgerRange)
if err != nil {
return false, errors.Wrap(err, "error checking prepared range")
}
if !prepared {
// Release distributed ingestion lock and prepare the range
s.historyQ.Rollback()
log.Info("Released ingestion lock to prepare range")
log.WithFields(logpkg.F{"ledger": from}).Info("Preparing range")
startTime := time.Now()
err = s.ledgerBackend.PrepareRange(ledgerRange)
if err != nil {
return true, errors.Wrap(err, "error preparing range")
}
log.WithFields(logpkg.F{
"ledger": from,
"duration": time.Since(startTime).Seconds(),
}).Info("Range prepared")
return true, nil
}
return false, nil
}