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* kafka consumer tolerate TiKV errors Signed-off-by: Ping Yu <yuping@pingcap.com> * polish Signed-off-by: Ping Yu <yuping@pingcap.com> * improve download Signed-off-by: Ping Yu <yuping@pingcap.com> * fix no wget Signed-off-by: Ping Yu <yuping@pingcap.com> * trap kafka consumer log on exit Signed-off-by: Ping Yu <yuping@pingcap.com> * more logs Signed-off-by: Ping Yu <yuping@pingcap.com> * more memory usage for kafka sink Signed-off-by: Ping Yu <yuping@pingcap.com> * trigger CI Signed-off-by: Ping Yu <yuping@pingcap.com> * skip error on memory oversize for Kafka sink Signed-off-by: Ping Yu <yuping@pingcap.com> * longer check_sync_diff timeout Signed-off-by: Ping Yu <yuping@pingcap.com> * check event nil Signed-off-by: Ping Yu <yuping@pingcap.com> --------- Signed-off-by: Ping Yu <yuping@pingcap.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| // Copyright 2021 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "net/url" | ||
| "time" | ||
|
|
||
| "github.com/pingcap/errors" | ||
| "github.com/pingcap/kvproto/pkg/kvrpcpb" | ||
| "github.com/tikv/migration/cdc/cdc/model" | ||
| "github.com/tikv/migration/cdc/cdc/sink" | ||
| "github.com/tikv/migration/cdc/pkg/config" | ||
|
|
||
| "github.com/tikv/client-go/v2/rawkv" | ||
| pd "github.com/tikv/pd/client" | ||
| ) | ||
|
|
||
| const ( | ||
| defaultPDErrorRetry int = 10 | ||
| ) | ||
|
|
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| var _ sink.Sink = (*tikvSimpleSink)(nil) | ||
|
|
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| // tikvSimpleSink is a sink that sends events to downstream TiKV cluster. | ||
| // The reason why we need this sink other than `cdc/sink/tikv.tikvSink` is that we need Kafka message offset to handle TiKV errors, which is not provided by `tikvSink`. | ||
| type tikvSimpleSink struct { | ||
| client *rawkv.Client | ||
| } | ||
|
|
||
| func newSimpleTiKVSink(ctx context.Context, sinkURI *url.URL, _ *config.ReplicaConfig, opts map[string]string, _ chan error) (*tikvSimpleSink, error) { | ||
| config, pdAddrs, err := sink.ParseTiKVUri(sinkURI, opts) | ||
| if err != nil { | ||
| return nil, errors.Trace(err) | ||
| } | ||
|
|
||
| client, err := rawkv.NewClientWithOpts(ctx, pdAddrs, | ||
| rawkv.WithSecurity(config.Security), | ||
| rawkv.WithAPIVersion(kvrpcpb.APIVersion_V2), | ||
| rawkv.WithPDOptions(pd.WithMaxErrorRetry(defaultPDErrorRetry)), | ||
| ) | ||
| if err != nil { | ||
| return nil, errors.Trace(err) | ||
| } | ||
| return &tikvSimpleSink{ | ||
| client: client, | ||
| }, nil | ||
| } | ||
|
|
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| func (s *tikvSimpleSink) EmitChangedEvents(ctx context.Context, rawKVEntries ...*model.RawKVEntry) error { | ||
| now := uint64(time.Now().Unix()) | ||
|
|
||
| for _, entry := range rawKVEntries { | ||
| opType, key, value, ttl, err := sink.ExtractRawKVEntry(entry, now) | ||
| if err != nil { | ||
| return errors.Trace(err) | ||
| } | ||
|
|
||
| if opType == model.OpTypePut { | ||
| err := s.client.PutWithTTL(ctx, key, value, ttl) | ||
| if err != nil { | ||
| return errors.Trace(err) | ||
| } | ||
| } else if opType == model.OpTypeDelete { | ||
| err := s.client.Delete(ctx, key) | ||
| if err != nil { | ||
| return errors.Trace(err) | ||
| } | ||
| } else { | ||
| return errors.Errorf("unexpected opType %v", opType) | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (s *tikvSimpleSink) FlushChangedEvents(ctx context.Context, _ model.KeySpanID, resolvedTs uint64) (uint64, error) { | ||
| return resolvedTs, nil | ||
| } | ||
|
|
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| func (s *tikvSimpleSink) EmitCheckpointTs(ctx context.Context, ts uint64) error { | ||
| return nil | ||
| } | ||
|
|
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| func (s *tikvSimpleSink) Close(ctx context.Context) error { | ||
| return errors.Trace(s.client.Close()) | ||
| } | ||
|
|
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| func (s *tikvSimpleSink) Barrier(ctx context.Context, keyspanID model.KeySpanID) error { | ||
| return nil | ||
| } | ||
|
|
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| func registerSimpleTiKVSink(schema string) { | ||
| initFunc := func(ctx context.Context, changefeedID model.ChangeFeedID, sinkURI *url.URL, | ||
| config *config.ReplicaConfig, opts map[string]string, errCh chan error, | ||
| ) (sink.Sink, error) { | ||
| return newSimpleTiKVSink(ctx, sinkURI, config, opts, errCh) | ||
| } | ||
| checkerFunc := func(ctx context.Context, changefeedID model.ChangeFeedID, sinkURI *url.URL, | ||
| config *config.ReplicaConfig, opts map[string]string, errCh chan error, | ||
| ) (sink.Sink, error) { | ||
| _, _, err := sink.ParseTiKVUri(sinkURI, opts) | ||
| return nil, err | ||
| } | ||
| sink.RegisterSink(schema, initFunc, checkerFunc) | ||
| } |
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