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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| package caimpl | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/go-kit/log" | ||
| "github.com/go-kit/log/level" | ||
| "github.com/grafana/dskit/services" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/prometheus/model/labels" | ||
|
|
||
| "github.com/grafana/mimir/pkg/util/validation" | ||
| ) | ||
|
|
||
| type ManagerImpl struct { | ||
| services.Service | ||
| logger log.Logger | ||
| attributionTracker *AttributionTrackerGroup | ||
| inactiveTimeout time.Duration | ||
| invalidValue string | ||
| } | ||
|
|
||
| // NewManager creates a new cost attribution manager. which is responsible for managing the cost attribution of series. | ||
| // It will clean up inactive series and update the cost attribution of series every 3 minutes. | ||
| func NewManager(cleanupInterval, inactiveTimeout time.Duration, logger log.Logger, limits *validation.Overrides) *ManagerImpl { | ||
| s := &ManagerImpl{ | ||
| attributionTracker: newAttributionTrackerGroup(limits), | ||
| inactiveTimeout: inactiveTimeout, | ||
| logger: logger, | ||
| invalidValue: "__unaccounted__", | ||
| } | ||
|
|
||
| s.Service = services.NewTimerService(cleanupInterval, nil, s.iteration, nil).WithName("cost attribution manager") | ||
| return s | ||
| } | ||
|
|
||
| func (m *ManagerImpl) iteration(_ context.Context) error { | ||
| m.attributionTracker.purgeInactiveAttributions(m.inactiveTimeout) | ||
| return nil | ||
| } | ||
|
|
||
| // EnabledForUser returns true if the cost attribution is enabled for the user | ||
| func (m *ManagerImpl) EnabledForUser(userID string) bool { | ||
| return m.attributionTracker.limits.CostAttributionLabel(userID) != "" | ||
| } | ||
|
|
||
| // GetUserAttributionLabel returns the cost attribution label for the user, first it will try to get the label from the cache, | ||
| // if not found, it will get the label from the config | ||
| func (m *ManagerImpl) GetUserAttributionLabel(userID string) string { | ||
| if m.EnabledForUser(userID) { | ||
| return m.attributionTracker.getUserAttributionLabelFromCache(userID) | ||
| } | ||
| m.attributionTracker.deleteUserTracerFromCache(userID) | ||
| return "" | ||
| } | ||
|
|
||
| // GetUserAttributionLimit returns the cost attribution limit for the user, first it will try to get the limit from the cache, | ||
| // if not found, it will get the limit from the config | ||
| func (m *ManagerImpl) GetUserAttributionLimit(userID string) int { | ||
| if m.EnabledForUser(userID) { | ||
| return m.attributionTracker.getUserAttributionLimitFromCache(userID) | ||
| } | ||
| m.attributionTracker.deleteUserTracerFromCache(userID) | ||
| return 0 | ||
| } | ||
|
|
||
| func (m *ManagerImpl) UpdateAttributionTimestamp(user string, lbs labels.Labels, now time.Time) string { | ||
| // if cost attribution is not enabled for the user, return empty string | ||
| if !m.EnabledForUser(user) { | ||
| m.attributionTracker.deleteUserTracerFromCache(user) | ||
| return "" | ||
| } | ||
|
|
||
| // when cost attribution is enabled, the label has to be set. the cache would be updated with the label | ||
| lb := m.attributionTracker.getUserAttributionLabelFromCache(user) | ||
| // this should not happened, if user is enabled for cost attribution, the label has to be set | ||
| if lb == "" { | ||
| return "" | ||
| } | ||
| val := lbs.Get(lb) | ||
|
|
||
| if m.attributionTracker.attributionLimitExceeded(user, val, now) { | ||
| val = m.invalidValue | ||
| level.Error(m.logger).Log("msg", fmt.Sprintf("set attribution label to \"%s\" since user has reached the limit of cost attribution labels", m.invalidValue)) | ||
| } | ||
| m.attributionTracker.updateAttributionCacheForUser(user, lb, val, now) | ||
| return val | ||
| } | ||
|
|
||
| // SetActiveSeries adjust the input attribution and sets the active series gauge for the given user and attribution | ||
| func (m *ManagerImpl) SetActiveSeries(userID, attribution string, value float64) { | ||
| attribution = m.adjustUserAttribution(userID, attribution) | ||
|
|
||
| m.attributionTracker.mu.Lock() | ||
| defer m.attributionTracker.mu.Unlock() | ||
| if tracker, exists := m.attributionTracker.trackersByUserID[userID]; exists { | ||
| tracker.activeSeriesPerUserAttribution.WithLabelValues(userID, attribution).Set(value) | ||
| } | ||
| } | ||
|
|
||
| // IncrementDiscardedSamples increments the discarded samples counter for a given user and attribution | ||
| func (m *ManagerImpl) IncrementDiscardedSamples(userID, attribution string, value float64) { | ||
| attribution = m.adjustUserAttribution(userID, attribution) | ||
| m.attributionTracker.mu.RLock() | ||
| defer m.attributionTracker.mu.RUnlock() | ||
| if tracker, exists := m.attributionTracker.trackersByUserID[userID]; exists { | ||
| tracker.discardedSampleAttribution.WithLabelValues(userID, attribution).Add(value) | ||
| } | ||
| } | ||
|
|
||
| // IncrementReceivedSamples increments the received samples counter for a given user and attribution | ||
| func (m *ManagerImpl) IncrementReceivedSamples(userID, attribution string, value float64) { | ||
| attribution = m.adjustUserAttribution(userID, attribution) | ||
| m.attributionTracker.mu.RLock() | ||
| defer m.attributionTracker.mu.RUnlock() | ||
| if tracker, exists := m.attributionTracker.trackersByUserID[userID]; exists { | ||
| tracker.receivedSamplesAttribution.WithLabelValues(userID, attribution).Add(value) | ||
| } | ||
| } | ||
|
|
||
| func (m *ManagerImpl) adjustUserAttribution(userID, attribution string) string { | ||
| if m.attributionTracker.attributionLimitExceeded(userID, attribution, time.Now()) { | ||
| return m.invalidValue | ||
| } | ||
| return attribution | ||
| } | ||
|
|
||
| func (m *ManagerImpl) Collect(out chan<- prometheus.Metric) { | ||
| m.attributionTracker.mu.RLock() | ||
| defer m.attributionTracker.mu.RUnlock() | ||
| for _, tracker := range m.attributionTracker.trackersByUserID { | ||
| tracker.Collect(out) | ||
| } | ||
| } | ||
|
|
||
| // Describe implements prometheus.Collector. | ||
| func (m *ManagerImpl) Describe(chan<- *prometheus.Desc) { | ||
| // this is an unchecked collector | ||
| } |
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