Add replication factor to block meta [1 of 3]

modules/generator/processor/localblocks/livetraces.go

@@ -59,11 +59,11 @@ func (l *liveTraces) Push(traceID []byte, batch *v1.ResourceSpans, max uint64) b
 	return true
 }
 
-func (l *liveTraces) CutIdle(idleSince time.Time) []*liveTrace {
+func (l *liveTraces) CutIdle(idleSince time.Time, immediate bool) []*liveTrace {
 	res := []*liveTrace{}
 
 	for k, tr := range l.traces {
-		if tr.timestamp.Before(idleSince) {
+		if tr.timestamp.Before(idleSince) || immediate {
 			res = append(res, tr)
 			delete(l.traces, k)
 		}

modules/generator/processor/localblocks/processor.go

@@ -577,11 +577,7 @@ func (p *Processor) cutIdleTraces(immediate bool) error {
 	metricLiveTraces.WithLabelValues(p.tenant).Set(float64(len(p.liveTraces.traces)))
 
 	since := time.Now().Add(-p.Cfg.TraceIdlePeriod)
-	if immediate {
-		since = time.Time{}
-	}
-
-	tracesToCut := p.liveTraces.CutIdle(since)
+	tracesToCut := p.liveTraces.CutIdle(since, immediate)
 
 	p.liveTracesMtx.Unlock()
 
@@ -634,7 +630,13 @@ func (p *Processor) writeHeadBlock(id common.ID, tr *tempopb.Trace) error {
 }
 
 func (p *Processor) resetHeadBlock() error {
-	block, err := p.wal.NewBlockWithDedicatedColumns(uuid.New(), p.tenant, model.CurrentEncoding, p.overrides.DedicatedColumns(p.tenant))
+	meta := &backend.BlockMeta{
+		BlockID:           uuid.New(),
+		TenantID:          p.tenant,
+		DedicatedColumns:  p.overrides.DedicatedColumns(p.tenant),
+		ReplicationFactor: 1,
+	}
+	block, err := p.wal.NewBlock(meta, model.CurrentEncoding)
 	if err != nil {
 		return err
 	}

modules/generator/processor/localblocks/processor_test.go

@@ -6,15 +6,14 @@ import (
 	"testing"
 	"time"
 
-	"github.com/stretchr/testify/require"
-
 	"github.com/grafana/tempo/pkg/tempopb"
 	v1 "github.com/grafana/tempo/pkg/tempopb/trace/v1"
 	"github.com/grafana/tempo/pkg/util/test"
 	"github.com/grafana/tempo/tempodb/backend"
 	"github.com/grafana/tempo/tempodb/encoding"
 	"github.com/grafana/tempo/tempodb/encoding/common"
 	"github.com/grafana/tempo/tempodb/wal"
+	"github.com/stretchr/testify/require"
 )
 
 type mockOverrides struct{}
@@ -153,3 +152,52 @@ func TestProcessorDoesNotRace(t *testing.T) {
 	wg.Wait()
 	p.Shutdown(ctx)
 }
+
+func TestReplicationFactor(t *testing.T) {
+	wal, err := wal.New(&wal.Config{
+		Filepath: t.TempDir(),
+		Version:  encoding.DefaultEncoding().Version(),
+	})
+	require.NoError(t, err)
+
+	cfg := Config{
+		FlushCheckPeriod:     time.Minute,
+		TraceIdlePeriod:      time.Minute,
+		CompleteBlockTimeout: time.Minute,
+		Block: &common.BlockConfig{
+			BloomShardSizeBytes: 100_000,
+			BloomFP:             0.05,
+			Version:             encoding.DefaultEncoding().Version(),
+		},
+		Metrics: MetricsConfig{
+			ConcurrentBlocks:  10,
+			TimeOverlapCutoff: 0.2,
+		},
+		FilterServerSpans: false,
+	}
+
+	p, err := New(cfg, "fake", wal, &mockOverrides{})
+	require.NoError(t, err)
+
+	tr := test.MakeTrace(10, []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9})
+	p.PushSpans(context.TODO(), &tempopb.PushSpansRequest{
+		Batches: tr.Batches,
+	})
+
+	require.NoError(t, p.cutIdleTraces(true))
+	verifyReplicationFactor(t, p.headBlock)
+
+	require.NoError(t, p.cutBlocks(true))
+	for _, b := range p.walBlocks {
+		verifyReplicationFactor(t, b)
+	}
+
+	require.NoError(t, p.completeBlock())
+	for _, b := range p.completeBlocks {
+		verifyReplicationFactor(t, b)
+	}
+}
+
+func verifyReplicationFactor(t *testing.T, b common.BackendBlock) {
+	require.Equal(t, 1, int(b.BlockMeta().ReplicationFactor))
+}

modules/ingester/instance.go

@@ -521,7 +521,12 @@ func (i *instance) resetHeadBlock() error {
 
 	dedicatedColumns := i.getDedicatedColumns()
 
-	newHeadBlock, err := i.writer.WAL().NewBlockWithDedicatedColumns(uuid.New(), i.instanceID, model.CurrentEncoding, dedicatedColumns)
+	meta := &backend.BlockMeta{
+		BlockID:          uuid.New(),
+		TenantID:         i.instanceID,
+		DedicatedColumns: dedicatedColumns,
+	}
+	newHeadBlock, err := i.writer.WAL().NewBlock(meta, model.CurrentEncoding)
 	if err != nil {
 		return err
 	}

tempodb/backend/block_meta.go

@@ -126,6 +126,9 @@ type BlockMeta struct {
 	FooterSize uint32 `json:"footerSize"`
 	// DedicatedColumns configuration for attributes (used by vParquet3)
 	DedicatedColumns DedicatedColumns `json:"dedicatedColumns,omitempty"`
+	// ReplicationFactor is the number of times the data written in this block has been replicated.
+	// It's left unset if replication factor is 3. Default is 0 (RF3).
+	ReplicationFactor uint32 `json:"replicationFactor,omitempty"`
 }
 
 // DedicatedColumn contains the configuration for a single attribute with the given name that should

tempodb/compaction_block_selector.go

@@ -78,25 +78,25 @@ func newTimeWindowBlockSelector(blocklist []*backend.BlockMeta, maxCompactionRan
 			// inside active window.
 			// Group by compaction level and window.
 			// Choose lowest compaction level and most recent windows first.
-			entry.group = fmt.Sprintf("A-%v-%016X", b.CompactionLevel, age)
+			entry.group = fmt.Sprintf("A-%v-%016X-%v", b.CompactionLevel, age, b.ReplicationFactor)
 
 			// Within group choose smallest blocks first.
 			// update after parquet: we want to make sure blocks of the same version end up together
 			// update afert vParquet3: we want to make sure blocks of the same dedicated columns end up together
 			entry.order = fmt.Sprintf("%016X-%v-%016X", entry.meta.TotalObjects, entry.meta.Version, entry.meta.DedicatedColumnsHash())
 
-			entry.hash = fmt.Sprintf("%v-%v-%v", b.TenantID, b.CompactionLevel, w)
+			entry.hash = fmt.Sprintf("%v-%v-%v-%v", b.TenantID, b.CompactionLevel, w, b.ReplicationFactor)
 		} else {
 			// outside active window.
 			// Group by window only.  Choose most recent windows first.
-			entry.group = fmt.Sprintf("B-%016X", age)
+			entry.group = fmt.Sprintf("B-%016X-%v", age, b.ReplicationFactor)
 
 			// Within group chose lowest compaction lvl and smallest blocks first.
 			// update after parquet: we want to make sure blocks of the same version end up together
 			// update afert vParquet3: we want to make sure blocks of the same dedicated columns end up together
 			entry.order = fmt.Sprintf("%v-%016X-%v-%016X", b.CompactionLevel, entry.meta.TotalObjects, entry.meta.Version, entry.meta.DedicatedColumnsHash())
 
-			entry.hash = fmt.Sprintf("%v-%v", b.TenantID, w)
+			entry.hash = fmt.Sprintf("%v-%v-%v", b.TenantID, w, b.ReplicationFactor)
 		}
 
 		twbs.entries = append(twbs.entries, entry)