cdc/sink: adjust kafka initialization logic (#3192)

cdc/owner/async_sink.go

@@ -38,7 +38,6 @@ const (
 // The EmitCheckpointTs and EmitDDLEvent is asynchronous function for now
 // Other functions are still synchronization
 type AsyncSink interface {
-	Initialize(ctx cdcContext.Context, tableInfo []*model.SimpleTableInfo) error
 	// EmitCheckpointTs emits the checkpoint Ts to downstream data source
 	// this function will return after recording the checkpointTs specified in memory immediately
 	// and the recorded checkpointTs will be sent and updated to downstream data source every second
@@ -101,10 +100,6 @@ func newAsyncSink(ctx cdcContext.Context) (AsyncSink, error) {
 	return asyncSink, nil
 }
 
-func (s *asyncSinkImpl) Initialize(ctx cdcContext.Context, tableInfo []*model.SimpleTableInfo) error {
-	return s.sink.Initialize(ctx, tableInfo)
-}
-
 func (s *asyncSinkImpl) run(ctx cdcContext.Context) {
 	defer s.wg.Done()
 	// TODO make the tick duration configurable

cdc/owner/async_sink_test.go

@@ -37,16 +37,10 @@ type asyncSinkSuite struct {
 
 type mockSink struct {
 	sink.Sink
-	initTableInfo []*model.SimpleTableInfo
-	checkpointTs  model.Ts
-	ddl           *model.DDLEvent
-	ddlMu         sync.Mutex
-	ddlError      error
-}
-
-func (m *mockSink) Initialize(ctx context.Context, tableInfo []*model.SimpleTableInfo) error {
-	m.initTableInfo = tableInfo
-	return nil
+	checkpointTs model.Ts
+	ddl          *model.DDLEvent
+	ddlMu        sync.Mutex
+	ddlError     error
 }
 
 func (m *mockSink) EmitCheckpointTs(ctx context.Context, ts uint64) error {
@@ -88,17 +82,6 @@ func newAsyncSink4Test(ctx cdcContext.Context, c *check.C) (cdcContext.Context,
 	return ctx, sink, mockSink
 }
 
-func (s *asyncSinkSuite) TestInitialize(c *check.C) {
-	defer testleak.AfterTest(c)()
-	ctx := cdcContext.NewBackendContext4Test(false)
-	ctx, sink, mockSink := newAsyncSink4Test(ctx, c)
-	defer sink.Close(ctx)
-	tableInfos := []*model.SimpleTableInfo{{Schema: "test"}}
-	err := sink.Initialize(ctx, tableInfos)
-	c.Assert(err, check.IsNil)
-	c.Assert(tableInfos, check.DeepEquals, mockSink.initTableInfo)
-}
-
 func (s *asyncSinkSuite) TestCheckpoint(c *check.C) {
 	defer testleak.AfterTest(c)()
 	ctx := cdcContext.NewBackendContext4Test(false)

cdc/owner/changefeed.go

@@ -254,10 +254,7 @@ LOOP:
 	if err != nil {
 		return errors.Trace(err)
 	}
-	err = c.sink.Initialize(cancelCtx, c.schema.SinkTableInfos())
-	if err != nil {
-		return errors.Trace(err)
-	}
+
 	// Refer to the previous comment on why we use (checkpointTs-1).
 	c.ddlPuller, err = c.newDDLPuller(cancelCtx, checkpointTs-1)
 	if err != nil {

cdc/processor/pipeline/sink_test.go

@@ -58,10 +58,6 @@ func (c *mockFlowController) GetConsumption() uint64 {
 	return 0
 }
 
-func (s *mockSink) Initialize(ctx context.Context, tableInfo []*model.SimpleTableInfo) error {
-	return nil
-}
-
 func (s *mockSink) EmitRowChangedEvents(ctx context.Context, rows ...*model.RowChangedEvent) error {
 	for _, row := range rows {
 		s.received = append(s.received, struct {

cdc/sink/black_hole.go

@@ -68,11 +68,6 @@ func (b *blackHoleSink) EmitDDLEvent(ctx context.Context, ddl *model.DDLEvent) e
 	return nil
 }
 
-// Initialize is no-op for blackhole
-func (b *blackHoleSink) Initialize(ctx context.Context, tableInfo []*model.SimpleTableInfo) error {
-	return nil
-}
-
 func (b *blackHoleSink) Close(ctx context.Context) error {
 	return nil
 }

cdc/sink/manager_test.go

@@ -48,10 +48,6 @@ func newCheckSink(c *check.C) *checkSink {
 	}
 }
 
-func (c *checkSink) Initialize(ctx context.Context, tableInfo []*model.SimpleTableInfo) error {
-	panic("unreachable")
-}
-
 func (c *checkSink) EmitRowChangedEvents(ctx context.Context, rows ...*model.RowChangedEvent) error {
 	c.rowsMu.Lock()
 	defer c.rowsMu.Unlock()
@@ -342,10 +338,6 @@ type errorSink struct {
 	*check.C
 }
 
-func (e *errorSink) Initialize(ctx context.Context, tableInfo []*model.SimpleTableInfo) error {
-	panic("unreachable")
-}
-
 func (e *errorSink) EmitRowChangedEvents(ctx context.Context, rows ...*model.RowChangedEvent) error {
 	return errors.New("error in emit row changed events")
 }

cdc/sink/mq.go

@@ -265,12 +265,6 @@ func (k *mqSink) EmitDDLEvent(ctx context.Context, ddl *model.DDLEvent) error {
 	return errors.Trace(err)
 }
 
-// Initialize registers Avro schemas for all tables
-func (k *mqSink) Initialize(ctx context.Context, tableInfo []*model.SimpleTableInfo) error {
-	// No longer need it for now
-	return nil
-}
-
 func (k *mqSink) Close(ctx context.Context) error {
 	err := k.mqProducer.Close()
 	return errors.Trace(err)
@@ -414,7 +408,11 @@ func newKafkaSaramaSink(ctx context.Context, sinkURI *url.URL, filter *filter.Fi
 	topic := strings.TrimFunc(sinkURI.Path, func(r rune) bool {
 		return r == '/'
 	})
-	producer, err := kafka.NewKafkaSaramaProducer(ctx, sinkURI.Host, topic, config, errCh)
+	if topic == "" {
+		return nil, cerror.ErrKafkaInvalidConfig.GenWithStack("no topic is specified in sink-uri")
+	}
+
+	producer, err := kafka.NewKafkaSaramaProducer(ctx, topic, config, errCh)
 	if err != nil {
 		return nil, errors.Trace(err)
 	}
@@ -444,8 +442,8 @@ func newPulsarSink(ctx context.Context, sinkURI *url.URL, filter *filter.Filter,
 	if s != "" {
 		opts["max-batch-size"] = s
 	}
-	// For now, it's a place holder. Avro format have to make connection to Schema Registery,
-	// and it may needs credential.
+	// For now, it's a placeholder. Avro format have to make connection to Schema Registry,
+	// and it may need credential.
 	credential := &security.Credential{}
 	sink, err := newMqSink(ctx, credential, producer, filter, replicaConfig, opts, errCh)
 	if err != nil {

cdc/sink/mq_test.go

@@ -62,6 +62,12 @@ func (s mqSinkSuite) TestKafkaSink(c *check.C) {
 	c.Assert(err, check.IsNil)
 	opts := map[string]string{}
 	errCh := make(chan error, 1)
+
+	c.Assert(failpoint.Enable("github.com/pingcap/tiflow/cdc/sink/producer/kafka/SkipTopicAutoCreate", "return(true)"), check.IsNil)
+	defer func() {
+		_ = failpoint.Disable("github.com/pingcap/tiflow/cdc/sink/producer/kafka/SkipTopicAutoCreate")
+	}()
+
 	sink, err := newKafkaSaramaSink(ctx, sinkURI, fr, replicaConfig, opts, errCh)
 	c.Assert(err, check.IsNil)
 
@@ -161,6 +167,12 @@ func (s mqSinkSuite) TestKafkaSinkFilter(c *check.C) {
 	c.Assert(err, check.IsNil)
 	opts := map[string]string{}
 	errCh := make(chan error, 1)
+
+	c.Assert(failpoint.Enable("github.com/pingcap/tiflow/cdc/sink/producer/kafka/SkipTopicAutoCreate", "return(true)"), check.IsNil)
+	defer func() {
+		_ = failpoint.Disable("github.com/pingcap/tiflow/cdc/sink/producer/kafka/SkipTopicAutoCreate")
+	}()
+
 	sink, err := newKafkaSaramaSink(ctx, sinkURI, fr, replicaConfig, opts, errCh)
 	c.Assert(err, check.IsNil)
 

cdc/sink/mysql.go

@@ -185,11 +185,6 @@ func (s *mysqlSink) EmitDDLEvent(ctx context.Context, ddl *model.DDLEvent) error
 	return errors.Trace(err)
 }
 
-// Initialize is no-op for Mysql sink
-func (s *mysqlSink) Initialize(ctx context.Context, tableInfo []*model.SimpleTableInfo) error {
-	return nil
-}
-
 func (s *mysqlSink) execDDLWithMaxRetries(ctx context.Context, ddl *model.DDLEvent) error {
 	return retry.Do(ctx, func() error {
 		err := s.execDDL(ctx, ddl)