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ingestion_rate_strategy.go
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/
ingestion_rate_strategy.go
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package distributor
import (
"github.com/grafana/dskit/limiter"
"github.com/grafana/tempo/modules/overrides"
)
// ReadLifecycler represents the read interface to the lifecycler.
type ReadLifecycler interface {
HealthyInstancesCount() int
}
type localStrategy struct {
limits *overrides.Overrides
}
func newLocalIngestionRateStrategy(limits *overrides.Overrides) limiter.RateLimiterStrategy {
return &localStrategy{
limits: limits,
}
}
func (s *localStrategy) Limit(userID string) float64 {
return s.limits.IngestionRateLimitBytes(userID)
}
func (s *localStrategy) Burst(userID string) int {
return s.limits.IngestionBurstSizeBytes(userID)
}
type globalStrategy struct {
limits *overrides.Overrides
ring ReadLifecycler
}
func newGlobalIngestionRateStrategy(limits *overrides.Overrides, ring ReadLifecycler) limiter.RateLimiterStrategy {
return &globalStrategy{
limits: limits,
ring: ring,
}
}
func (s *globalStrategy) Limit(userID string) float64 {
numDistributors := s.ring.HealthyInstancesCount()
if numDistributors == 0 {
return s.limits.IngestionRateLimitBytes(userID)
}
return s.limits.IngestionRateLimitBytes(userID) / float64(numDistributors)
}
func (s *globalStrategy) Burst(userID string) int {
// The meaning of burst doesn't change for the global strategy, in order
// to keep it easier to understand for users / operators.
return s.limits.IngestionBurstSizeBytes(userID)
}