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fsm.go
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package ingest
import (
"context"
"fmt"
"strings"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/stellar/go/historyarchive"
"github.com/stellar/go/ingest"
"github.com/stellar/go/ingest/ledgerbackend"
"github.com/stellar/go/services/horizon/internal/db2/history"
"github.com/stellar/go/support/errors"
logpkg "github.com/stellar/go/support/log"
"github.com/stellar/go/xdr"
)
var (
defaultSleep = time.Second
)
// ErrReingestRangeConflict indicates that the reingest range overlaps with
// horizon's most recently ingested ledger
type ErrReingestRangeConflict struct {
maximumLedgerSequence uint32
}
func (e ErrReingestRangeConflict) Error() string {
return fmt.Sprintf("reingest range overlaps with horizon ingestion, supplied range shouldn't contain ledger %d", e.maximumLedgerSequence)
}
type State int
const (
None State = iota
Start
Stop
Build
Resume
WaitForCheckpoint
StressTest
VerifyRange
HistoryRange
ReingestHistoryRange
)
// provide a name represention for a state
func (state State) Name() string {
switch state {
case Start:
return "start"
case Stop:
return "stop"
case Build:
return "build"
case Resume:
return "resume"
case WaitForCheckpoint:
return "waitforcheckpoint"
case StressTest:
return "stresstest"
case VerifyRange:
return "verifyrange"
case HistoryRange:
return "historyrange"
case ReingestHistoryRange:
return "reingesthistoryrange"
default:
return "none"
}
}
type stateMachineNode interface {
run(*system) (transition, error)
String() string
GetState() State
}
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}
}
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) GetState() State {
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 (startState) GetState() State {
return Start
}
func (state startState) run(s *system) (transition, error) {
if err := s.historyQ.Begin(s.ctx); 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(s.ctx)
if err != nil {
return start(), errors.Wrap(err, getLastIngestedErrMsg)
}
ingestVersion, err := s.historyQ.GetIngestVersion(s.ctx)
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.GetLatestHistoryLedger(s.ctx)
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(s.ctx, 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
skipChecks bool
stop bool
}
func (b buildState) String() string {
return fmt.Sprintf("buildFromCheckpoint(checkpointLedger=%d, skipChecks=%t)", b.checkpointLedger, b.skipChecks)
}
func (buildState) GetState() State {
return Build
}
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")
}
// We don't need to prepare range for genesis checkpoint because we don't
// perform protocol version and bucket list hash checks.
// In the long term we should probably create artificial xdr.LedgerCloseMeta
// for ledger #1 instead of using `ingest.GenesisChange` reader in
// ProcessorRunner.RunHistoryArchiveIngestion().
// We can also skip preparing range if `skipChecks` is `true` because we
// won't need bucket list hash and protocol version.
var protocolVersion uint32
var bucketListHash xdr.Hash
if b.checkpointLedger != 1 && !b.skipChecks {
err := s.maybePrepareRange(s.ctx, b.checkpointLedger)
if err != nil {
return nextFailState, err
}
log.WithField("sequence", b.checkpointLedger).Info("Waiting for ledger to be available in the backend...")
startTime := time.Now()
ledgerCloseMeta, err := s.ledgerBackend.GetLedger(s.ctx, b.checkpointLedger)
if err != nil {
return nextFailState, errors.Wrap(err, "error getting ledger blocking")
}
log.WithFields(logpkg.F{
"sequence": b.checkpointLedger,
"duration": time.Since(startTime).Seconds(),
}).Info("Ledger returned from the backend")
protocolVersion = ledgerCloseMeta.ProtocolVersion()
bucketListHash = ledgerCloseMeta.BucketListHash()
}
if err := s.historyQ.Begin(s.ctx); 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(s.ctx)
if err != nil {
return nextFailState, errors.Wrap(err, getLastIngestedErrMsg)
}
ingestVersion, err := s.historyQ.GetIngestVersion(s.ctx)
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
}
log.Info("Starting ingestion system from empty state...")
// Clear last_ingested_ledger in key value store
err = s.historyQ.UpdateLastLedgerIngest(s.ctx, 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(s.ctx, false)
if err != nil {
return nextFailState, errors.Wrap(err, updateExpStateInvalidErrMsg)
}
// State tables should be empty.
err = s.historyQ.TruncateIngestStateTables(s.ctx)
if err != nil {
return nextFailState, errors.Wrap(err, "Error clearing ingest tables")
}
log.WithFields(logpkg.F{
"sequence": b.checkpointLedger,
}).Info("Processing state")
startTime := time.Now()
var stats ingest.StatsChangeProcessorResults
if b.checkpointLedger == 1 {
stats, err = s.runner.RunGenesisStateIngestion()
} else {
stats, err = s.runner.RunHistoryArchiveIngestion(
b.checkpointLedger,
b.skipChecks,
protocolVersion,
bucketListHash,
)
}
if err != nil {
return nextFailState, errors.Wrap(err, "Error ingesting history archive")
}
if err = s.historyQ.UpdateIngestVersion(s.ctx, CurrentVersion); err != nil {
return nextFailState, errors.Wrap(err, "Error updating ingestion version")
}
if err = s.completeIngestion(s.ctx, b.checkpointLedger); err != nil {
return nextFailState, err
}
log.
WithFields(stats.Map()).
WithFields(logpkg.F{
"sequence": 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 (resumeState) GetState() State {
return Resume
}
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))
ingestLedger := r.latestSuccessfullyProcessedLedger + 1
err := s.maybePrepareRange(s.ctx, ingestLedger)
if err != nil {
return start(), err
}
log.WithField("sequence", ingestLedger).Info("Waiting for ledger to be available in the backend...")
startTime := time.Now()
ledgerCloseMeta, err := s.ledgerBackend.GetLedger(s.ctx, ingestLedger)
if err != nil {
return start(), errors.Wrap(err, "error getting ledger blocking")
}
duration := time.Since(startTime).Seconds()
log.WithFields(logpkg.F{
"sequence": ingestLedger,
"duration": duration,
}).Info("Ledger returned from the backend")
if err = s.historyQ.Begin(s.ctx); 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(s.ctx)
if err != nil {
return retryResume(r), errors.Wrap(err, getLastIngestedErrMsg)
}
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")
// resume immediately so Captive-Core catchup is not slowed down
return resumeImmediately(lastIngestedLedger), nil
}
ingestVersion, err := s.historyQ.GetIngestVersion(s.ctx)
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.GetLatestHistoryLedger(s.ctx)
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
}
startTime = time.Now()
log.WithFields(logpkg.F{
"sequence": ingestLedger,
"state": true,
"ledger": true,
"commit": true,
}).Info("Processing ledger")
stats, err :=
s.runner.RunAllProcessorsOnLedger(ledgerCloseMeta)
if err != nil {
return retryResume(r), errors.Wrap(err, "Error running processors on ledger")
}
rebuildStart := time.Now()
err = s.RebuildTradeAggregationBuckets(ingestLedger, ingestLedger)
if err != nil {
return retryResume(r), errors.Wrap(err, "error rebuilding trade aggregations")
}
rebuildDuration := time.Since(rebuildStart).Seconds()
s.Metrics().LedgerIngestionTradeAggregationDuration.Observe(float64(rebuildDuration))
if err = s.completeIngestion(s.ctx, ingestLedger); err != nil {
return retryResume(r), err
}
// Update stats metrics
changeStatsMap := stats.changeStats.Map()
r.addLedgerStatsMetricFromMap(s, "change", changeStatsMap)
r.addProcessorDurationsMetricFromMap(s, stats.changeDurations)
transactionStatsMap := stats.transactionStats.Map()
r.addLedgerStatsMetricFromMap(s, "ledger", transactionStatsMap)
tradeStatsMap := stats.tradeStats.Map()
r.addLedgerStatsMetricFromMap(s, "trades", tradeStatsMap)
r.addProcessorDurationsMetricFromMap(s, stats.transactionDurations)
r.addLoaderDurationsMetricFromMap(s, stats.loaderDurations)
r.addLoaderStatsMetric(s, stats.loaderStats)
// since a single system instance is shared throughout all states,
// this will sweep up increments to history archive counters
// done elsewhere such as verifyState invocations since the same system
// instance is passed there and the additional usages of archives will just
// roll up and be reported here as part of resumeState transition
addHistoryArchiveStatsMetrics(s, s.historyAdapter.GetStats())
s.maybeVerifyState(ingestLedger, ledgerCloseMeta.BucketListHash())
s.maybeReapHistory(ingestLedger)
s.maybeReapLookupTables(ingestLedger)
duration = time.Since(startTime).Seconds()
s.Metrics().LedgerIngestionDuration.Observe(float64(duration))
localLog := log.WithFields(logpkg.F{
"sequence": ingestLedger,
"duration": duration,
"state": true,
"ledger": true,
"commit": true,
})
if s.config.EnableExtendedLogLedgerStats {
localLog = localLog.
WithFields(changeStatsMap).
WithFields(transactionStatsMap).
WithFields(tradeStatsMap)
}
localLog.Info("Processed ledger")
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 {
s.Metrics().ProcessorsRunDuration.
With(prometheus.Labels{"name": processorName}).Add(value.Seconds())
s.Metrics().ProcessorsRunDurationSummary.
With(prometheus.Labels{"name": processorName}).Observe(value.Seconds())
}
}
func (r resumeState) addLoaderDurationsMetricFromMap(s *system, m map[string]time.Duration) {
for loaderName, value := range m {
s.Metrics().LoadersRunDurationSummary.
With(prometheus.Labels{"name": loaderName}).Observe(value.Seconds())
}
}
func (r resumeState) addLoaderStatsMetric(s *system, loaderSTats map[string]history.LoaderStats) {
for loaderName, stats := range loaderSTats {
s.Metrics().LoadersStatsSummary.
With(prometheus.Labels{
"name": loaderName,
"stat": "total_queried",
}).
Observe(float64(stats.Total))
s.Metrics().LoadersStatsSummary.
With(prometheus.Labels{
"name": loaderName,
"stat": "total_inserted",
}).
Observe(float64(stats.Inserted))
}
}
func addHistoryArchiveStatsMetrics(s *system, stats []historyarchive.ArchiveStats) {
for _, historyServerStat := range stats {
s.Metrics().HistoryArchiveStatsCounter.
With(prometheus.Labels{
"source": historyServerStat.GetBackendName(),
"type": "file_downloads"}).
Add(float64(historyServerStat.GetDownloads()))
s.Metrics().HistoryArchiveStatsCounter.
With(prometheus.Labels{
"source": historyServerStat.GetBackendName(),
"type": "file_uploads"}).
Add(float64(historyServerStat.GetUploads()))
s.Metrics().HistoryArchiveStatsCounter.
With(prometheus.Labels{
"source": historyServerStat.GetBackendName(),
"type": "requests"}).
Add(float64(historyServerStat.GetRequests()))
s.Metrics().HistoryArchiveStatsCounter.
With(prometheus.Labels{
"source": historyServerStat.GetBackendName(),
"type": "cache_hits"}).
Add(float64(historyServerStat.GetCacheHits()))
s.Metrics().HistoryArchiveStatsCounter.
With(prometheus.Labels{
"source": historyServerStat.GetBackendName(),
"type": "cache_bandwidth"}).
Add(float64(historyServerStat.GetCacheBandwidth()))
}
}
type waitForCheckpointState struct{}
func (waitForCheckpointState) String() string {
return "waitForCheckpoint"
}
func (waitForCheckpointState) GetState() State {
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 (verifyRangeState) GetState() State {
return VerifyRange
}
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(s.ctx); 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(s.ctx)
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("sequence", v.fromLedger).Info("Preparing range")
startTime := time.Now()
err = s.ledgerBackend.PrepareRange(s.ctx, ledgerbackend.BoundedRange(v.fromLedger, v.toLedger))
if err != nil {
return stop(), errors.Wrap(err, "Error preparing range")
}
log.WithFields(logpkg.F{
"sequence": v.fromLedger,
"duration": time.Since(startTime).Seconds(),
}).Info("Range prepared")
log.WithField("sequence", v.fromLedger).Info("Processing state")
startTime = time.Now()
ledgerCloseMeta, err := s.ledgerBackend.GetLedger(s.ctx, v.fromLedger)
if err != nil {
return stop(), errors.Wrap(err, "error getting ledger")
}
stats, err := s.runner.RunHistoryArchiveIngestion(
ledgerCloseMeta.LedgerSequence(),
false,
ledgerCloseMeta.ProtocolVersion(),
ledgerCloseMeta.BucketListHash(),
)
if err != nil {
err = errors.Wrap(err, "Error ingesting history archive")
return stop(), err
}
if err = s.completeIngestion(s.ctx, v.fromLedger); err != nil {
return stop(), err
}
log.
WithFields(stats.Map()).
WithFields(logpkg.F{
"sequence": 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(s.ctx); err != nil {
err = errors.Wrap(err, "Error starting a transaction")
return stop(), err
}
ledgerCloseMeta, err = s.ledgerBackend.GetLedger(s.ctx, sequence)
if err != nil {
return stop(), errors.Wrap(err, "error getting ledger")
}
var ledgerStats ledgerStats
ledgerStats, err = s.runner.RunAllProcessorsOnLedger(ledgerCloseMeta)
if err != nil {
err = errors.Wrap(err, "Error running processors on ledger")
return stop(), err
}
if err = s.completeIngestion(s.ctx, sequence); err != nil {
return stop(), err
}
log.
WithFields(ledgerStats.changeStats.Map()).
WithFields(ledgerStats.transactionStats.Map()).
WithFields(ledgerStats.tradeStats.Map()).
WithFields(logpkg.F{
"sequence": sequence,
"duration": time.Since(startTime).Seconds(),
"state": true,
"ledger": true,
"commit": true,
}).
Info("Processed ledger")
}
err = s.RebuildTradeAggregationBuckets(v.fromLedger, v.toLedger)
if err != nil {
return stop(), errors.Wrap(err, "error rebuilding trade aggregations")
}
if v.verifyState {
err = s.verifyState(
false,
ledgerCloseMeta.LedgerSequence(),
ledgerCloseMeta.BucketListHash(),
)
}
return stop(), err
}
type stressTestState struct{}
func (stressTestState) String() string {
return "stressTest"
}
func (stressTestState) GetState() State {
return StressTest
}
func (stressTestState) run(s *system) (transition, error) {
if err := s.historyQ.Begin(s.ctx); 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(s.ctx)
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()
ledgerCloseMeta, err := s.ledgerBackend.GetLedger(s.ctx, sequence)
if err != nil {
return stop(), errors.Wrap(err, "error getting ledger")
}
stats, err := s.runner.RunAllProcessorsOnLedger(ledgerCloseMeta)
if err != nil {
err = errors.Wrap(err, "Error running processors on ledger")
return stop(), err
}
if err = s.completeIngestion(s.ctx, sequence); err != nil {
return stop(), err
}
curHeap, sysHeap = getMemStats()
log.
WithFields(stats.changeStats.Map()).
WithFields(stats.transactionStats.Map()).
WithFields(stats.tradeStats.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(ctx context.Context, ledger uint32) error {
if ledger == 0 {
return errors.New("ledger must be positive")
}
if err := s.historyQ.UpdateLastLedgerIngest(ctx, 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, if not, prepares it.
func (s *system) maybePrepareRange(ctx context.Context, from uint32) error {
ledgerRange := ledgerbackend.UnboundedRange(from)
prepared, err := s.ledgerBackend.IsPrepared(ctx, ledgerRange)
if err != nil {
return errors.Wrap(err, "error checking prepared range")
}
if !prepared {
log.WithFields(logpkg.F{"from": from}).Info("Preparing range")
startTime := time.Now()
err = s.ledgerBackend.PrepareRange(ctx, ledgerRange)
if err != nil {
return errors.Wrap(err, "error preparing range")
}
log.WithFields(logpkg.F{
"from": from,
"duration": time.Since(startTime).Seconds(),
}).Info("Range prepared")
return nil
}
return nil
}