feat: Introduce wal segment read path. (grafana#13695)

Co-authored-by: Ben Clive <[email protected]>

pkg/ingester-rf1/flush.go

@@ -114,7 +114,7 @@ func (i *Ingester) flushSegment(ctx context.Context, j int, w *wal.SegmentWriter
 	wal.ReportSegmentStats(stats, i.metrics.segmentMetrics)
 
 	id := ulid.MustNew(ulid.Timestamp(time.Now()), rand.Reader).String()
-	if err := i.store.PutObject(ctx, fmt.Sprintf("loki-v2/wal/anon/"+id), buf); err != nil {
+	if err := i.store.PutObject(ctx, fmt.Sprintf(wal.Dir+id), buf); err != nil {
 		i.metrics.flushFailuresTotal.Inc()
 		return fmt.Errorf("failed to put object: %w", err)
 	}

pkg/loki/modules.go

@@ -52,6 +52,7 @@ import (
 	metastoreclient "github.com/grafana/loki/v3/pkg/ingester-rf1/metastore/client"
 	"github.com/grafana/loki/v3/pkg/ingester-rf1/metastore/health"
 	"github.com/grafana/loki/v3/pkg/ingester-rf1/metastore/metastorepb"
+	"github.com/grafana/loki/v3/pkg/ingester-rf1/objstore"
 	"github.com/grafana/loki/v3/pkg/logproto"
 	"github.com/grafana/loki/v3/pkg/logql"
 	"github.com/grafana/loki/v3/pkg/logqlmodel/stats"
@@ -415,7 +416,11 @@ func (t *Loki) initQuerier() (services.Service, error) {
 
 	if t.Cfg.QuerierRF1.Enabled {
 		logger.Log("Using RF-1 querier implementation")
-		t.Querier, err = querierrf1.New(t.Cfg.QuerierRF1, t.Store, t.Overrides, deleteStore, logger)
+		store, err := objstore.New(t.Cfg.SchemaConfig.Configs, t.Cfg.StorageConfig, t.ClientMetrics)
+		if err != nil {
+			return nil, err
+		}
+		t.Querier, err = querierrf1.New(t.Cfg.QuerierRF1, t.Store, t.Overrides, deleteStore, t.MetastoreClient, store, logger)
 		if err != nil {
 			return nil, err
 		}
@@ -1818,7 +1823,7 @@ func (t *Loki) initMetastore() (services.Service, error) {
 		return nil, nil
 	}
 	if t.Cfg.isTarget(All) {
-		t.Cfg.MetastoreClient.MetastoreAddress = fmt.Sprintf("localhost:%s", t.Cfg.Server.GRPCListenAddress)
+		t.Cfg.MetastoreClient.MetastoreAddress = fmt.Sprintf("localhost:%d", t.Cfg.Server.GRPCListenPort)
 	}
 	m, err := metastore.New(t.Cfg.Metastore, log.With(util_log.Logger, "component", "metastore"), prometheus.DefaultRegisterer, t.health)
 	if err != nil {

pkg/querier-rf1/querier.go

@@ -34,6 +34,7 @@ import (
 	"github.com/grafana/loki/v3/pkg/logql/syntax"
 	"github.com/grafana/loki/v3/pkg/logqlmodel"
 	"github.com/grafana/loki/v3/pkg/querier"
+	"github.com/grafana/loki/v3/pkg/querier-rf1/wal"
 	querier_limits "github.com/grafana/loki/v3/pkg/querier/limits"
 	"github.com/grafana/loki/v3/pkg/querier/plan"
 	"github.com/grafana/loki/v3/pkg/storage"
@@ -97,19 +98,25 @@ type Rf1Querier struct {
 	deleteGetter   deleteGetter
 	logger         log.Logger
 	patternQuerier PatterQuerier
+	walQuerier     logql.Querier
 }
 
 type deleteGetter interface {
 	GetAllDeleteRequestsForUser(ctx context.Context, userID string) ([]deletion.DeleteRequest, error)
 }
 
 // New makes a new Querier for RF1 work.
-func New(cfg Config, store Store, limits Limits, d deleteGetter, logger log.Logger) (*Rf1Querier, error) {
+func New(cfg Config, store Store, limits Limits, d deleteGetter, metastore wal.Metastore, b wal.BlockStorage, logger log.Logger) (*Rf1Querier, error) {
+	querier, err := wal.New(metastore, b)
+	if err != nil {
+		return nil, err
+	}
 	return &Rf1Querier{
 		cfg:          cfg,
 		store:        store,
 		limits:       limits,
 		deleteGetter: d,
+		walQuerier:   querier,
 		logger:       logger,
 	}, nil
 }
@@ -134,7 +141,7 @@ func (q *Rf1Querier) SelectLogs(ctx context.Context, params logql.SelectLogParam
 			"msg", "querying rf1 store",
 			"params", params)
 	}
-	storeIter, err := q.store.SelectLogs(ctx, params)
+	storeIter, err := q.walQuerier.SelectLogs(ctx, params)
 	if err != nil {
 		return nil, err
 	}
@@ -164,7 +171,7 @@ func (q *Rf1Querier) SelectSamples(ctx context.Context, params logql.SelectSampl
 			"msg", "querying rf1 store for samples",
 			"params", params)
 	}
-	storeIter, err := q.store.SelectSamples(ctx, params)
+	storeIter, err := q.walQuerier.SelectSamples(ctx, params)
 	if err != nil {
 		return nil, err
 	}