fix(deps): update module github.com/hashicorp/golang-lru to v2 (#14979)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Paul Rogers <paul.rogers@grafana.com>
Co-authored-by: Paul Rogers <129207811+paul1r@users.noreply.github.com>

Author: renovate[bot]

clients/pkg/logentry/stages/timestamp.go

@@ -8,7 +8,7 @@ import (
 
 	"github.com/go-kit/log"
 	"github.com/go-kit/log/level"
-	lru "github.com/hashicorp/golang-lru"
+	lru "github.com/hashicorp/golang-lru/v2"
 	"github.com/mitchellh/mapstructure"
 	"github.com/prometheus/common/model"
 
@@ -114,9 +114,9 @@ func newTimestampStage(logger log.Logger, config interface{}) (Stage, error) {
 		return nil, err
 	}
 
-	var lastKnownTimestamps *lru.Cache
+	var lastKnownTimestamps *lru.Cache[string, time.Time]
 	if *cfg.ActionOnFailure == TimestampActionOnFailureFudge {
-		lastKnownTimestamps, err = lru.New(maxLastKnownTimestampsCacheSize)
+		lastKnownTimestamps, err = lru.New[string, time.Time](maxLastKnownTimestampsCacheSize)
 		if err != nil {
 			return nil, err
 		}
@@ -138,7 +138,7 @@ type timestampStage struct {
 
 	// Stores the last known timestamp for a given "stream id" (guessed, since at this stage
 	// there's no reliable way to know it).
-	lastKnownTimestamps *lru.Cache
+	lastKnownTimestamps *lru.Cache[string, time.Time]
 }
 
 // Name implements Stage
@@ -222,7 +222,7 @@ func (ts *timestampStage) processActionOnFailureFudge(labels model.LabelSet, t *
 	}
 
 	// Fudge the timestamp
-	*t = lastTimestamp.(time.Time).Add(1 * time.Nanosecond)
+	*t = lastTimestamp.Add(1 * time.Nanosecond)
 
 	// Store the fudged timestamp, so that a subsequent fudged timestamp will be 1ns after it
 	ts.lastKnownTimestamps.Add(labelsStr, *t)

go.mod

@@ -58,7 +58,7 @@ require (
 	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0
 	github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645
 	github.com/hashicorp/consul/api v1.30.0
-	github.com/hashicorp/golang-lru v0.6.0
+	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/imdario/mergo v0.3.16
 	github.com/influxdata/telegraf v1.16.3
 	github.com/jmespath/go-jmespath v0.4.0
@@ -126,7 +126,6 @@ require (
 	github.com/gogo/googleapis v1.4.1
 	github.com/grafana/jsonparser v0.0.0-20241004153430-023329977675
 	github.com/grafana/loki/pkg/push v0.0.0-20240924133635-758364c7775f
-	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/heroku/x v0.4.0
 	github.com/influxdata/tdigest v0.0.2-0.20210216194612-fc98d27c9e8b
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
@@ -173,6 +172,7 @@ require (
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/goccy/go-json v0.10.3 // indirect
 	github.com/gorilla/handlers v1.5.2 // indirect
+	github.com/hashicorp/golang-lru v0.6.0 // indirect
 	github.com/lufia/plan9stats v0.0.0-20220913051719-115f729f3c8c // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect
 	github.com/moby/sys/userns v0.1.0 // indirect

pkg/distributor/distributor.go

@@ -28,7 +28,7 @@ import (
 	"github.com/grafana/dskit/services"
 	"github.com/grafana/dskit/tenant"
 	"github.com/grafana/dskit/user"
-	lru "github.com/hashicorp/golang-lru"
+	lru "github.com/hashicorp/golang-lru/v2"
 	"github.com/opentracing/opentracing-go"
 	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
@@ -148,7 +148,7 @@ type Distributor struct {
 	subservicesWatcher *services.FailureWatcher
 	// Per-user rate limiter.
 	ingestionRateLimiter *limiter.RateLimiter
-	labelCache           *lru.Cache
+	labelCache           *lru.Cache[string, labelData]
 
 	// Push failures rate limiter.
 	writeFailuresManager *writefailures.Manager
@@ -217,7 +217,7 @@ func New(
 	var servs []services.Service
 
 	rateLimitStrat := validation.LocalIngestionRateStrategy
-	labelCache, err := lru.New(maxLabelCacheSize)
+	labelCache, err := lru.New[string, labelData](maxLabelCacheSize)
 	if err != nil {
 		return nil, err
 	}
@@ -1086,8 +1086,7 @@ type labelData struct {
 
 func (d *Distributor) parseStreamLabels(vContext validationContext, key string, stream logproto.Stream) (labels.Labels, string, uint64, error) {
 	if val, ok := d.labelCache.Get(key); ok {
-		labelVal := val.(labelData)
-		return labelVal.ls, labelVal.ls.String(), labelVal.hash, nil
+		return val.ls, val.ls.String(), val.hash, nil
 	}
 
 	ls, err := syntax.ParseLabels(key)

pkg/kafka/encoding.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/twmb/franz-go/pkg/kgo"
 
-	lru "github.com/hashicorp/golang-lru"
+	lru "github.com/hashicorp/golang-lru/v2"
 	"github.com/prometheus/prometheus/model/labels"
 
 	"github.com/grafana/loki/v3/pkg/logproto"
@@ -126,11 +126,11 @@ func marshalWriteRequestToRecord(partitionID int32, tenantID string, stream logp
 // It caches parsed labels for efficiency.
 type Decoder struct {
 	stream *logproto.Stream
-	cache  *lru.Cache
+	cache  *lru.Cache[string, labels.Labels]
 }
 
 func NewDecoder() (*Decoder, error) {
-	cache, err := lru.New(5000) // Set LRU size to 5000, adjust as needed
+	cache, err := lru.New[string, labels.Labels](5000)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create LRU cache: %w", err)
 	}
@@ -154,7 +154,7 @@ func (d *Decoder) Decode(data []byte) (logproto.Stream, labels.Labels, error) {
 
 	var ls labels.Labels
 	if cachedLabels, ok := d.cache.Get(d.stream.Labels); ok {
-		ls = cachedLabels.(labels.Labels)
+		ls = cachedLabels
 	} else {
 		var err error
 		ls, err = syntax.ParseLabels(d.stream.Labels)