/
sampling.go
511 lines (445 loc) · 16.7 KB
/
sampling.go
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package graph
import (
"context"
"encoding/json"
"fmt"
"hash/fnv"
"regexp"
"time"
trace2 "go.opentelemetry.io/otel/trace"
"github.com/aws/smithy-go/ptr"
"github.com/google/uuid"
e "github.com/pkg/errors"
log "github.com/sirupsen/logrus"
"github.com/highlight-run/highlight/backend/clickhouse"
"github.com/highlight-run/highlight/backend/model"
"github.com/highlight-run/highlight/backend/parser"
privateModel "github.com/highlight-run/highlight/backend/private-graph/graph/model"
modelInputs "github.com/highlight-run/highlight/backend/public-graph/graph/model"
"github.com/highlight-run/highlight/backend/util"
"github.com/highlight/highlight/sdk/highlight-go"
)
func (r *Resolver) IsTraceIngested(ctx context.Context, trace *clickhouse.TraceRow) bool {
span := util.StartSpan(
"IsIngestedBy", util.ResourceName("sampling"), util.WithHighlightTracingDisabled(true), util.WithSpanKind(trace2.SpanKindServer),
util.Tag(highlight.ProjectIDAttribute, trace.ProjectId),
util.Tag(highlight.TraceTypeAttribute, highlight.TraceTypeHighlightInternal),
util.Tag(highlight.TraceKeyAttribute, trace.UUID),
util.Tag("product", privateModel.ProductTypeTraces),
util.Tag("ingested", true),
)
defer span.Finish()
if !r.IsTraceIngestedByFilter(ctx, trace) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonFilter)
return false
}
if !r.IsTraceIngestedBySample(ctx, trace) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonSample)
return false
}
if !r.IsTraceIngestedByRateLimit(ctx, trace) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonRate)
return false
}
return true
}
func (r *Resolver) IsTraceIngestedBySample(ctx context.Context, trace *clickhouse.TraceRow) bool {
return r.isItemIngestedBySample(ctx, privateModel.ProductTypeTraces, int(trace.ProjectId), trace.TraceId)
}
func (r *Resolver) IsTraceIngestedByRateLimit(ctx context.Context, trace *clickhouse.TraceRow) bool {
return r.isItemIngestedByRate(ctx, trace.Timestamp, privateModel.ProductTypeTraces, int(trace.ProjectId))
}
func (r *Resolver) IsTraceIngestedByFilter(ctx context.Context, trace *clickhouse.TraceRow) bool {
return r.isItemIngestedByFilter(ctx, privateModel.ProductTypeTraces, int(trace.ProjectId), trace)
}
func (r *Resolver) IsLogIngested(ctx context.Context, logRow *clickhouse.LogRow) bool {
span := util.StartSpan(
"IsIngestedBy", util.ResourceName("sampling"), util.WithSpanKind(trace2.SpanKindServer),
util.Tag(highlight.ProjectIDAttribute, logRow.ProjectId),
util.Tag(highlight.TraceTypeAttribute, highlight.TraceTypeHighlightInternal),
util.Tag(highlight.TraceKeyAttribute, logRow.UUID),
util.Tag("product", privateModel.ProductTypeLogs),
util.Tag("ingested", true),
)
defer span.Finish()
if !r.IsLogIngestedBySample(ctx, logRow) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonSample)
return false
}
if !r.IsLogIngestedByFilter(ctx, logRow) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonFilter)
return false
}
if !r.IsLogIngestedByRateLimit(ctx, logRow) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonRate)
return false
}
return true
}
func (r *Resolver) IsLogIngestedBySample(ctx context.Context, logRow *clickhouse.LogRow) bool {
return r.isItemIngestedBySample(ctx, privateModel.ProductTypeLogs, int(logRow.ProjectId), logRow.UUID)
}
func (r *Resolver) IsLogIngestedByRateLimit(ctx context.Context, logRow *clickhouse.LogRow) bool {
return r.isItemIngestedByRate(ctx, logRow.Timestamp, privateModel.ProductTypeLogs, int(logRow.ProjectId))
}
func (r *Resolver) IsLogIngestedByFilter(ctx context.Context, logRow *clickhouse.LogRow) bool {
return r.isItemIngestedByFilter(ctx, privateModel.ProductTypeLogs, int(logRow.ProjectId), logRow)
}
func (r *Resolver) IsFrontendErrorIngested(ctx context.Context, projectID int, session *model.Session, frontendError *modelInputs.ErrorObjectInput) bool {
stack, _ := json.Marshal(frontendError.StackTrace)
errorObject := &modelInputs.BackendErrorObjectInput{
Environment: session.Environment,
Event: frontendError.Event,
Payload: frontendError.Payload,
SessionSecureID: &session.SecureID,
Service: &modelInputs.ServiceInput{
Name: session.ServiceName,
Version: ptr.ToString(session.AppVersion),
},
Source: frontendError.Source,
StackTrace: string(stack),
Timestamp: frontendError.Timestamp,
Type: frontendError.Type,
URL: frontendError.URL,
}
if !r.IsErrorIngestedBySample(ctx, projectID, errorObject) {
return false
}
if !r.IsErrorIngestedByFilter(ctx, projectID, errorObject) {
return false
}
if !r.IsErrorIngestedByRateLimit(ctx, projectID, errorObject) {
return false
}
return true
}
func (r *Resolver) IsErrorIngested(ctx context.Context, projectID int, errorObject *modelInputs.BackendErrorObjectInput) bool {
span := util.StartSpan(
"IsIngestedBy", util.ResourceName("sampling"), util.WithSpanKind(trace2.SpanKindServer),
util.Tag(highlight.ProjectIDAttribute, projectID),
util.Tag(highlight.TraceTypeAttribute, highlight.TraceTypeHighlightInternal),
util.Tag(highlight.TraceKeyAttribute, getErrorObjectID(errorObject)),
util.Tag("product", privateModel.ProductTypeErrors),
util.Tag("ingested", true),
)
defer span.Finish()
if !r.IsErrorIngestedBySample(ctx, projectID, errorObject) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonFilter)
return false
}
if !r.IsErrorIngestedByFilter(ctx, projectID, errorObject) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonFilter)
return false
}
if !r.IsErrorIngestedByRateLimit(ctx, projectID, errorObject) {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", privateModel.IngestReasonFilter)
return false
}
return true
}
func (r *Resolver) IsErrorIngestedBySample(ctx context.Context, projectID int, errorObject *modelInputs.BackendErrorObjectInput) bool {
settings, err := r.getSettings(ctx, projectID, errorObject.SessionSecureID)
if err != nil {
return true
}
return r.isItemIngestedBySample(ctx, privateModel.ProductTypeErrors, settings.ProjectID, getErrorObjectID(errorObject))
}
func (r *Resolver) IsErrorIngestedByRateLimit(ctx context.Context, projectID int, errorObject *modelInputs.BackendErrorObjectInput) bool {
settings, err := r.getSettings(ctx, projectID, errorObject.SessionSecureID)
if err != nil {
return true
}
return r.isItemIngestedByRate(ctx, errorObject.Timestamp, privateModel.ProductTypeErrors, settings.ProjectID)
}
func (r *Resolver) IsErrorIngestedByFilter(ctx context.Context, projectID int, errorObject *modelInputs.BackendErrorObjectInput) bool {
settings, err := r.getSettings(ctx, projectID, errorObject.SessionSecureID)
if err != nil {
return true
}
if project, err := r.Store.GetProject(ctx, settings.ProjectID); err == nil {
if r.isExcludedError(ctx, projectID, project.ErrorFilters, errorObject.Event) {
return false
}
}
return r.isItemIngestedByFilter(ctx, privateModel.ProductTypeErrors, settings.ProjectID, errorObject)
}
func (r *Resolver) IsSessionExcluded(ctx context.Context, s *model.Session, sessionHasErrors bool) (bool, *privateModel.SessionExcludedReason) {
span := util.StartSpan(
"IsIngestedBy", util.ResourceName("sampling"), util.WithSpanKind(trace2.SpanKindServer),
util.Tag(highlight.ProjectIDAttribute, s.ProjectID),
util.Tag(highlight.TraceTypeAttribute, highlight.TraceTypeHighlightInternal),
util.Tag(highlight.TraceKeyAttribute, s.ID),
util.Tag("product", privateModel.ProductTypeSessions),
util.Tag("ingested", true),
)
defer span.Finish()
var excluded bool
var reason privateModel.SessionExcludedReason
project, err := r.Store.GetProject(ctx, s.ProjectID)
if err != nil {
log.WithContext(ctx).WithFields(log.Fields{"session_id": s.ID, "project_id": s.ProjectID, "identifier": s.Identifier}).Errorf("error fetching project for session: %v", err)
return false, nil
}
if r.isSessionUserExcluded(ctx, s, project) {
excluded = true
reason = privateModel.SessionExcludedReasonIgnoredUser
}
if r.isSessionExcludedForNoError(ctx, s, project, sessionHasErrors) {
excluded = true
reason = privateModel.SessionExcludedReasonNoError
}
if r.isSessionExcludedForNoUserEvents(ctx, s) {
excluded = true
reason = privateModel.SessionExcludedReasonNoUserEvents
}
if r.isSessionExcludedBySample(ctx, s) {
excluded = true
reason = privateModel.SessionExcludedReasonSampled
}
if r.IsSessionExcludedByFilter(ctx, s) {
excluded = true
reason = privateModel.SessionExcludedReasonExclusionFilter
}
if r.isSessionExcludedByRateLimit(ctx, s) {
excluded = true
reason = privateModel.SessionExcludedReasonRateLimitMinute
}
if excluded {
span.SetAttribute("ingested", false)
span.SetAttribute("reason", reason)
}
return excluded, &reason
}
func (r *Resolver) isSessionExcludedBySample(ctx context.Context, session *model.Session) bool {
return !r.isItemIngestedBySample(ctx, privateModel.ProductTypeSessions, session.ProjectID, session.SecureID)
}
func (r *Resolver) isSessionExcludedByRateLimit(ctx context.Context, session *model.Session) bool {
return !r.isItemIngestedByRate(ctx, session.CreatedAt, privateModel.ProductTypeSessions, session.ProjectID)
}
func (r *Resolver) IsSessionExcludedByFilter(ctx context.Context, session *model.Session) bool {
return !r.isItemIngestedByFilter(ctx, privateModel.ProductTypeSessions, session.ProjectID, session)
}
func (r *Resolver) isSessionExcludedForNoUserEvents(ctx context.Context, s *model.Session) bool {
return s.LastUserInteractionTime.Unix() == 0
}
func (r *Resolver) isSessionExcludedForNoError(ctx context.Context, s *model.Session, project *model.Project, sessionHasErrors bool) bool {
projectFilterSettings, _ := r.Store.GetProjectFilterSettings(ctx, project.ID)
if projectFilterSettings.FilterSessionsWithoutError {
return !sessionHasErrors
}
return false
}
func (r *Resolver) isSessionUserExcluded(ctx context.Context, s *model.Session, project *model.Project) bool {
if project.ExcludedUsers == nil {
return false
}
var email string
if s.UserProperties != "" {
encodedProperties := []byte(s.UserProperties)
decodedProperties := map[string]string{}
err := json.Unmarshal(encodedProperties, &decodedProperties)
if err != nil {
log.WithContext(ctx).WithFields(log.Fields{"session_id": s.ID, "project_id": s.ProjectID}).Errorf("Could not unmarshal user properties: %s, error: %v", s.UserProperties, err)
return false
}
email = decodedProperties["email"]
}
for _, value := range []string{s.Identifier, email} {
if value == "" {
continue
}
for _, excludedExpr := range project.ExcludedUsers {
matched, err := regexp.MatchString(excludedExpr, value)
if err != nil {
log.WithContext(ctx).WithFields(log.Fields{"session_id": s.ID, "project_id": s.ProjectID}).Errorf("error running regexp for excluded users: %s with value: %s, error: %v", excludedExpr, value, err.Error())
return false
} else if matched {
return true
}
}
}
return false
}
func (r *Resolver) isItemIngestedBySample(ctx context.Context, product privateModel.ProductType, projectID int, key string) bool {
settings, err := r.getSettings(ctx, projectID, nil)
if err != nil {
return true
}
rate := func() float64 {
switch product {
case privateModel.ProductTypeSessions:
return settings.SessionSamplingRate
case privateModel.ProductTypeErrors:
return settings.ErrorSamplingRate
case privateModel.ProductTypeLogs:
return settings.LogSamplingRate
case privateModel.ProductTypeTraces:
return settings.TraceSamplingRate
}
return 1.
}()
ingested := isIngestedBySample(ctx, key, rate)
return ingested
}
func (r *Resolver) isItemIngestedByRate(ctx context.Context, when time.Time, product privateModel.ProductType, projectID int) bool {
settings, err := r.getSettings(ctx, projectID, nil)
if err != nil {
return true
}
max := func() *int64 {
switch product {
case privateModel.ProductTypeSessions:
return settings.SessionMinuteRateLimit
case privateModel.ProductTypeErrors:
return settings.ErrorMinuteRateLimit
case privateModel.ProductTypeLogs:
return settings.LogMinuteRateLimit
case privateModel.ProductTypeTraces:
return settings.TraceMinuteRateLimit
}
return nil
}()
if max == nil {
return true
}
ingested := r.isIngestedByRateLimit(ctx, fmt.Sprintf("sampling-%d-%s", projectID, product.String()), *max, when.Minute())
return ingested
}
func (r *Resolver) isItemIngestedByFilter(ctx context.Context, product privateModel.ProductType, projectID int, object interface{}) bool {
settings, err := r.getSettings(ctx, projectID, nil)
if err != nil {
return true
}
query := func() string {
switch product {
case privateModel.ProductTypeSessions:
return ptr.ToString(settings.SessionExclusionQuery)
case privateModel.ProductTypeErrors:
return ptr.ToString(settings.ErrorExclusionQuery)
case privateModel.ProductTypeLogs:
return ptr.ToString(settings.LogExclusionQuery)
case privateModel.ProductTypeTraces:
return ptr.ToString(settings.TraceExclusionQuery)
}
return ""
}()
if query == "" {
return true
}
excluded := func() bool {
switch product {
case privateModel.ProductTypeSessions:
filters := parser.Parse(query, clickhouse.SessionsTableConfig)
return clickhouse.SessionMatchesQuery(object.(*model.Session), filters)
case privateModel.ProductTypeErrors:
filters := parser.Parse(query, clickhouse.BackendErrorObjectInputConfig)
return clickhouse.ErrorMatchesQuery(object.(*modelInputs.BackendErrorObjectInput), filters)
case privateModel.ProductTypeLogs:
filters := parser.Parse(query, clickhouse.LogsTableConfig)
return clickhouse.LogMatchesQuery(object.(*clickhouse.LogRow), filters)
case privateModel.ProductTypeTraces:
filters := parser.Parse(query, clickhouse.TracesTableNoDefaultConfig)
return clickhouse.TraceMatchesQuery(object.(*clickhouse.TraceRow), filters)
}
return false
}()
return !excluded
}
func isIngestedBySample(ctx context.Context, key string, rate float64) bool {
if rate >= 1 {
return true
}
if key == "" {
key = uuid.New().String()
}
h := fnv.New32a()
if _, err := h.Write([]byte(key)); err != nil {
log.WithContext(ctx).WithError(err).Error("failed to calculate hash")
return true
}
sum := h.Sum32()
threshold := uint32(rate * float64(1<<32-1))
return sum < threshold
}
// isIngestedByRateLimit limits ingestion for a key at a max items per minute
func (r *Resolver) isIngestedByRateLimit(ctx context.Context, key string, max int64, minute int) bool {
key = fmt.Sprintf("%s-%d", key, minute)
// based on https://redis.com/glossary/rate-limiting/
count, _ := r.Redis.Client.Get(ctx, key).Int64()
if count >= max {
return false
}
r.Redis.Client.Incr(ctx, key)
r.Redis.Client.Expire(ctx, key, 59*time.Second)
return true
}
func (r *Resolver) getSettings(ctx context.Context, projectID int, sessionSecureID *string) (*model.ProjectFilterSettings, error) {
if projectID == 0 {
if sessionSecureID == nil {
return nil, e.New("no project nor session secure id provided for sampling settings")
}
session, err := r.Store.GetSessionFromSecureID(ctx, *sessionSecureID)
if err != nil {
log.WithContext(ctx).WithError(err).Error("failed to get session")
return nil, err
}
projectID = session.ProjectID
}
settings, err := r.Store.GetProjectFilterSettings(ctx, projectID)
if err != nil {
log.WithContext(ctx).WithError(err).Error("failed to get project filter settings")
return nil, err
}
return settings, nil
}
func (r *Resolver) isExcludedError(ctx context.Context, projectID int, errorFilters []string, errorEvent string) bool {
if errorEvent == "[{}]" {
log.WithContext(ctx).
WithField("project_id", projectID).
Warn("ignoring empty error")
return true
}
if cfg, err := r.Store.GetSystemConfiguration(ctx); err == nil {
errorFilters = append(errorFilters, cfg.ErrorFilters...)
}
// Filter out by project.ErrorFilters, aka regexp filters
var err error
matchedRegexp := false
for _, errorFilter := range errorFilters {
if errorFilter == "" {
continue
}
matchedRegexp, err = regexp.MatchString(errorFilter, errorEvent)
if err != nil {
log.WithContext(ctx).
WithField("project_id", projectID).
WithField("regex", errorFilter).
WithError(err).
Error("invalid regex: failed to parse backend error filter")
continue
}
if matchedRegexp {
return true
}
}
return false
}
func getErrorObjectID(errorObject *modelInputs.BackendErrorObjectInput) string {
id := ptr.ToString(errorObject.RequestID)
if id == "" {
id = ptr.ToString(errorObject.TraceID)
}
if id == "" {
id = ptr.ToString(errorObject.SpanID)
}
return id
}