optimize allocations on pass of offsets to pipeline

pipeline/antispam/antispammer.go

@@ -22,7 +22,7 @@ type Antispammer struct {
 	threshold           int
 	maintenanceInterval time.Duration
 	mu                  sync.RWMutex
-	sources             map[any]source
+	sources             map[string]source
 	exceptions          Exceptions
 
 	logger *zap.Logger
@@ -63,7 +63,7 @@ func NewAntispammer(o *Options) *Antispammer {
 		unbanIterations:     o.UnbanIterations,
 		threshold:           o.Threshold,
 		maintenanceInterval: o.MaintenanceInterval,
-		sources:             make(map[any]source),
+		sources:             make(map[string]source),
 		exceptions:          o.Exceptions,
 		logger:              o.Logger,
 		activeMetric: o.MetricsController.RegisterGauge("antispam_active",
@@ -82,7 +82,7 @@ func NewAntispammer(o *Options) *Antispammer {
 	return a
 }
 
-func (a *Antispammer) IsSpam(id any, name string, isNewSource bool, event []byte, timeEvent time.Time) bool {
+func (a *Antispammer) IsSpam(id string, name string, isNewSource bool, event []byte, timeEvent time.Time) bool {
 	if a.threshold <= 0 {
 		return false
 	}

pipeline/antispam/antispammer_test.go

@@ -36,7 +36,7 @@ func TestAntispam(t *testing.T) {
 	startTime := time.Now()
 	checkSpam := func(i int) bool {
 		eventTime := startTime.Add(time.Duration(i) * maintenanceInterval / 2)
-		return antispamer.IsSpam(1, "test", false, []byte(`{}`), eventTime)
+		return antispamer.IsSpam("1", "test", false, []byte(`{}`), eventTime)
 	}
 
 	for i := 1; i < threshold; i++ {
@@ -66,7 +66,7 @@ func TestAntispamAfterRestart(t *testing.T) {
 	startTime := time.Now()
 	checkSpam := func(i int) bool {
 		eventTime := startTime.Add(time.Duration(i) * maintenanceInterval)
-		return antispamer.IsSpam(1, "test", false, []byte(`{}`), eventTime)
+		return antispamer.IsSpam("1", "test", false, []byte(`{}`), eventTime)
 	}
 
 	for i := 1; i < threshold; i++ {
@@ -128,7 +128,7 @@ func TestAntispamExceptions(t *testing.T) {
 	antispamer.exceptions.Prepare()
 
 	checkSpam := func(source, event string, wantMetric map[string]float64) {
-		antispamer.IsSpam(1, source, true, []byte(event), now)
+		antispamer.IsSpam("1", source, true, []byte(event), now)
 		for k, v := range wantMetric {
 			r.Equal(v, testutil.ToFloat64(antispamer.exceptionMetric.WithLabelValues(k)))
 		}

pipeline/offsets.go

@@ -0,0 +1,21 @@
+package pipeline
+
+type Offsets struct {
+	current       int64
+	streamOffsets SliceMap
+}
+
+func NewOffsets(current int64, streamOffsets SliceMap) Offsets {
+	return Offsets{
+		current:       current,
+		streamOffsets: streamOffsets,
+	}
+}
+
+func (o Offsets) byStream(stream string) int64 {
+	offset, found := o.streamOffsets.Get(StreamName(stream))
+	if !found {
+		return -1
+	}
+	return offset
+}

pipeline/offsets_test.go

@@ -0,0 +1,27 @@
+package pipeline
+
+import "testing"
+
+func TestOffset(t *testing.T) {
+	offsets := SliceFromMap(map[StreamName]int64{
+		"stream1": 100,
+		"stream2": 200,
+	})
+
+	offset := NewOffsets(42, offsets)
+
+	// Test Current method
+	if got := offset.current; got != 42 {
+		t.Errorf("Current() = %v; want 42", got)
+	}
+
+	// Test ByStream method for existing stream
+	if got := offset.byStream("stream1"); got != 100 {
+		t.Errorf("ByStream('stream1') = %v; want 100", got)
+	}
+
+	// Test ByStream method for non-existing stream
+	if got := offset.byStream("stream3"); got != -1 {
+		t.Errorf("ByStream('stream3') = %v; want -1", got)
+	}
+}

pipeline/pipeline.go

@@ -50,7 +50,7 @@ const (
 type finalizeFn = func(event *Event, notifyInput bool, backEvent bool)
 
 type InputPluginController interface {
-	In(sourceID SourceID, sourceName string, offset Offsets, data []byte, isNewSource bool, meta metadata.MetaData) uint64
+	In(sourceID SourceID, sourceName string, offsets Offsets, data []byte, isNewSource bool, meta metadata.MetaData) uint64
 	UseSpread()                            // don't use stream field and spread all events across all processors
 	DisableStreams()                       // don't use stream field
 	SuggestDecoder(t decoder.Type)         // set decoder type if pipeline uses "auto" value for decoder
@@ -412,13 +412,8 @@ func (p *Pipeline) GetOutput() OutputPlugin {
 	return p.output
 }
 
-type Offsets interface {
-	Current() int64
-	ByStream(stream string) int64
-}
-
 // In decodes message and passes it to event stream.
-func (p *Pipeline) In(sourceID SourceID, sourceName string, offset Offsets, bytes []byte, isNewSource bool, meta metadata.MetaData) (seqID uint64) {
+func (p *Pipeline) In(sourceID SourceID, sourceName string, offsets Offsets, bytes []byte, isNewSource bool, meta metadata.MetaData) (seqID uint64) {
 	var (
 		ok     bool
 		cutoff bool
@@ -451,7 +446,7 @@ func (p *Pipeline) In(sourceID SourceID, sourceName string, offset Offsets, byte
 		row, err = decoder.DecodeCRI(bytes)
 		if err != nil {
 			p.wrongEventCRIFormatMetric.Inc()
-			p.Error(fmt.Sprintf("wrong cri format offset=%d, length=%d, err=%s, source=%d:%s, cri=%s", offset.Current(), length, err.Error(), sourceID, sourceName, bytes))
+			p.Error(fmt.Sprintf("wrong cri format offset=%d, length=%d, err=%s, source=%d:%s, cri=%s", offsets.current, length, err.Error(), sourceID, sourceName, bytes))
 			return EventSeqIDError
 		}
 	}
@@ -465,17 +460,17 @@ func (p *Pipeline) In(sourceID SourceID, sourceName string, offset Offsets, byte
 	// For example, for containerd this setting is called max_container_log_line_size
 	// https://github.com/containerd/containerd/blob/f7f2be732159a411eae46b78bfdb479b133a823b/pkg/cri/config/config.go#L263-L266
 	if !row.IsPartial && p.settings.AntispamThreshold > 0 {
-		streamOffset := offset.ByStream(string(row.Stream))
-		currentOffset := offset.Current()
+		streamOffset := offsets.byStream(string(row.Stream))
+		currentOffset := offsets.current
 
 		if streamOffset > 0 && currentOffset < streamOffset {
 			return EventSeqIDError
 		}
 
-		var checkSourceID any
+		var checkSourceID string
 		var checkSourceName string
 		if p.settings.SourceNameMetaField == "" {
-			checkSourceID = uint64(sourceID)
+			checkSourceID = strconv.FormatUint(uint64(sourceID), 10)
 			checkSourceName = sourceName
 		} else {
 			if val, ok := meta[p.settings.SourceNameMetaField]; ok {
@@ -484,7 +479,7 @@ func (p *Pipeline) In(sourceID SourceID, sourceName string, offset Offsets, byte
 				isNewSource = false
 			} else {
 				p.Error(fmt.Sprintf("source_name_meta_field %q does not exists in meta", p.settings.SourceNameMetaField))
-				checkSourceID = uint64(sourceID)
+				checkSourceID = strconv.FormatUint(uint64(sourceID), 10)
 				checkSourceName = sourceName
 			}
 		}
@@ -539,7 +534,7 @@ func (p *Pipeline) In(sourceID SourceID, sourceName string, offset Offsets, byte
 		}
 
 		p.logger.Log(level, "wrong log format", zap.Error(err),
-			zap.Int64("offset", offset.Current()),
+			zap.Int64("offset", offsets.current),
 			zap.Int("length", length),
 			zap.Uint64("source", uint64(sourceID)),
 			zap.String("source_name", sourceName),
@@ -570,7 +565,7 @@ func (p *Pipeline) In(sourceID SourceID, sourceName string, offset Offsets, byte
 		event.Root.AddFieldNoAlloc(event.Root, p.settings.CutOffEventByLimitField).MutateToBool(true)
 	}
 
-	event.Offset = offset.Current()
+	event.Offset = offsets.current
 	event.SourceID = sourceID
 	event.SourceName = sourceName
 	event.streamName = DefaultStreamName

pipeline/pipeline_test.go

@@ -67,7 +67,7 @@ func TestInInvalidMessages(t *testing.T) {
 
 			pipe.SetInput(getFakeInputInfo())
 
-			seqID := pipe.In(tCase.sourceID, "kafka", test.Offset(tCase.offset), tCase.message, false, nil)
+			seqID := pipe.In(tCase.sourceID, "kafka", test.NewOffset(tCase.offset), tCase.message, false, nil)
 			require.Equal(t, pipeline.EventSeqIDError, seqID)
 		})
 	}
@@ -102,7 +102,7 @@ func BenchmarkMetaTemplater(b *testing.B) {
 				"/k8s-logs/advanced-logs-checker-1566485760-trtrq-%d_sre-%d_duty-bot-4e0301b633eaa2bfdcafdeba59ba0c72a3815911a6a820bf273534b0f32d98e0%d.log",
 				rest, rest, rest,
 			),
-			test.Offset(i),
+			test.NewOffset(int64(i)),
 			[]byte("2016-10-06T00:17:09.669794202Z stdout P partial content 1\n"),
 			false,
 			metadata.MetaData{},

pipeline/slicemap.go

@@ -0,0 +1,39 @@
+package pipeline
+
+// SliceMap is a map of streamName to offset.
+// It could be just map[k]v, but Go > 1.17 internal map implementation can't
+// work with mutable strings that occurs when using unsafe cast from []byte.
+// Also it should be not slower on 1-2 keys like linked list, which is often the case for streams per job.
+type SliceMap []kv
+
+type kv struct {
+	Stream StreamName
+	Offset int64
+}
+
+func SliceFromMap(m map[StreamName]int64) SliceMap {
+	so := make(SliceMap, 0, len(m))
+	for k, v := range m {
+		so = append(so, kv{k, v})
+	}
+	return so
+}
+
+func (so *SliceMap) Get(streamName StreamName) (int64, bool) {
+	for _, kv := range *so {
+		if kv.Stream == streamName {
+			return kv.Offset, true
+		}
+	}
+	return 0, false
+}
+
+func (so *SliceMap) Set(streamName StreamName, offset int64) {
+	for i := range *so {
+		if (*so)[i].Stream == streamName {
+			(*so)[i].Offset = offset
+			return
+		}
+	}
+	*so = append(*so, kv{streamName, offset})
+}

plugin/action/add_file_name/add_file_name_test.go

@@ -21,8 +21,8 @@ func TestModify(t *testing.T) {
 		wg.Done()
 	})
 
-	input.In(0, sourceName, test.Offset(0), []byte(`{"error":"info about error"}`))
-	input.In(0, sourceName, test.Offset(0), []byte(`{"file":"not_my_file"}`))
+	input.In(0, sourceName, test.NewOffset(0), []byte(`{"error":"info about error"}`))
+	input.In(0, sourceName, test.NewOffset(0), []byte(`{"file":"not_my_file"}`))
 
 	wg.Wait()
 	p.Stop()

plugin/action/add_host/add_host_test.go

@@ -22,7 +22,7 @@ func TestModify(t *testing.T) {
 		wg.Done()
 	})
 
-	input.In(0, "test.log", test.Offset(0), []byte(`{}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{}`))
 
 	wg.Wait()
 	p.Stop()

plugin/action/convert_date/convert_date_test.go

@@ -23,9 +23,9 @@ func TestConvert(t *testing.T) {
 		wg.Done()
 	})
 
-	input.In(0, "test.log", test.Offset(0), []byte(`{"time":998578502}`))
-	input.In(0, "test.log", test.Offset(0), []byte(`{"time":998578999.1346}`))
-	input.In(0, "test.log", test.Offset(0), []byte(`{"time":"2022/02/07 13:06:14"}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{"time":998578502}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{"time":998578999.1346}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{"time":"2022/02/07 13:06:14"}`))
 
 	wg.Wait()
 	p.Stop()
@@ -52,7 +52,7 @@ func TestConvertFail(t *testing.T) {
 		wg.Done()
 	})
 
-	input.In(0, "test.log", test.Offset(0), []byte(`{"time":"XXX"}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{"time":"XXX"}`))
 
 	wg.Wait()
 	p.Stop()

plugin/action/convert_log_level/convert_log_level_test.go

@@ -235,7 +235,7 @@ func TestDo(t *testing.T) {
 			})
 
 			for _, log := range tc.In {
-				input.In(0, "test.log", test.Offset(0), []byte(log))
+				input.In(0, "test.log", test.NewOffset(0), []byte(log))
 			}
 
 			now := time.Now()

plugin/action/convert_utf8_bytes/convert_utf8_bytes_test.go

@@ -149,7 +149,7 @@ func TestConvertUTF8Bytes(t *testing.T) {
 				wg.Done()
 			})
 
-			input.In(0, "test.log", test.Offset(0), []byte(tt.in))
+			input.In(0, "test.log", test.NewOffset(0), []byte(tt.in))
 
 			wg.Wait()
 			p.Stop()

plugin/action/decode/decode_test.go

@@ -275,7 +275,7 @@ func TestDecode(t *testing.T) {
 				wg.Done()
 			})
 
-			input.In(0, "test.log", test.Offset(0), tt.input)
+			input.In(0, "test.log", test.NewOffset(0), tt.input)
 
 			wg.Wait()
 			p.Stop()

plugin/action/discard/discard_test.go

@@ -139,10 +139,10 @@ func TestDiscard(t *testing.T) {
 			})
 
 			for _, e := range tt.passEvents {
-				input.In(0, "test", test.Offset(0), []byte(e))
+				input.In(0, "test", test.NewOffset(0), []byte(e))
 			}
 			for _, e := range tt.discardEvents {
-				input.In(0, "test", test.Offset(0), []byte(e))
+				input.In(0, "test", test.NewOffset(0), []byte(e))
 			}
 
 			wg.Wait()

plugin/action/flatten/flatten_test.go

@@ -25,7 +25,7 @@ func TestFlatten(t *testing.T) {
 		wg.Done()
 	})
 
-	input.In(0, "test.log", test.Offset(0), []byte(`{"complex":{"a":"b","c":"d"}}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{"complex":{"a":"b","c":"d"}}`))
 
 	wg.Wait()
 	p.Stop()

plugin/action/join/join_test.go

@@ -172,7 +172,7 @@ func TestSimpleJoin(t *testing.T) {
 
 			for i := 0; i < tt.iterations; i++ {
 				for m, line := range lines {
-					input.In(0, "test.log", test.Offset(int64(i*10000+m)), []byte(line))
+					input.In(0, "test.log", test.NewOffset(int64(i*10000+m)), []byte(line))
 				}
 			}
 
@@ -271,7 +271,7 @@ func TestJoinAfterNilNode(t *testing.T) {
 
 			for i := 0; i < tt.iterations; i++ {
 				for m, line := range lines {
-					input.In(0, "test.log", test.Offset(int64(i*10000+m)), []byte(line))
+					input.In(0, "test.log", test.NewOffset(int64(i*10000+m)), []byte(line))
 				}
 			}
 

plugin/action/join_template/join_template_test.go

@@ -447,7 +447,7 @@ func TestSimpleJoin(t *testing.T) {
 
 			for i := 0; i < tt.iterations; i++ {
 				for m, line := range lines {
-					input.In(0, "test.log", test.Offset(int64(i*10000+m)), []byte(line))
+					input.In(0, "test.log", test.NewOffset(int64(i*10000+m)), []byte(line))
 				}
 			}
 
@@ -534,7 +534,7 @@ func TestJoinAfterNilNode(t *testing.T) {
 
 			for i := 0; i < tt.iterations; i++ {
 				for m, line := range lines {
-					input.In(0, "test.log", test.Offset(int64(i*10000+m)), []byte(line))
+					input.In(0, "test.log", test.NewOffset(int64(i*10000+m)), []byte(line))
 				}
 			}
 

plugin/action/json_decode/json_decode_test.go

@@ -19,7 +19,7 @@ func TestDecode(t *testing.T) {
 		wg.Done()
 	})
 
-	input.In(0, "test.log", test.Offset(0), []byte(`{"log":"{\"field2\":\"value2\",\"field3\":\"value3\"}"}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{"log":"{\"field2\":\"value2\",\"field3\":\"value3\"}"}`))
 
 	wg.Wait()
 	p.Stop()

plugin/action/json_encode/json_encode_test.go

@@ -20,7 +20,7 @@ func TestEncode(t *testing.T) {
 		wg.Done()
 	})
 
-	input.In(0, "test.log", test.Offset(0), []byte(`{"server":{"os":"linux","arch":"amd64"}}`))
+	input.In(0, "test.log", test.NewOffset(0), []byte(`{"server":{"os":"linux","arch":"amd64"}}`))
 
 	wg.Wait()
 	p.Stop()

plugin/action/json_extract/json_extract_test.go

@@ -118,7 +118,7 @@ func TestJsonExtract(t *testing.T) {
 				wg.Done()
 			})
 
-			input.In(0, "test.log", test.Offset(0), []byte(tt.in))
+			input.In(0, "test.log", test.NewOffset(0), []byte(tt.in))
 
 			wg.Wait()
 			p.Stop()