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This is an automated cherry-pick of pingcap#2512
Signed-off-by: ti-chi-bot <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,254 @@ | ||
| // 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 capture | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "github.com/pingcap/errors" | ||
| "github.com/pingcap/log" | ||
| "github.com/pingcap/ticdc/cdc/entry" | ||
| "github.com/pingcap/ticdc/cdc/kv" | ||
| "github.com/pingcap/ticdc/cdc/model" | ||
| "github.com/pingcap/ticdc/cdc/sink" | ||
| "github.com/pingcap/ticdc/pkg/config" | ||
| cerror "github.com/pingcap/ticdc/pkg/errors" | ||
| "github.com/pingcap/ticdc/pkg/filter" | ||
| "github.com/pingcap/ticdc/pkg/txnutil/gc" | ||
| "github.com/pingcap/ticdc/pkg/util" | ||
| "github.com/pingcap/ticdc/pkg/version" | ||
| tidbkv "github.com/pingcap/tidb/kv" | ||
| "github.com/r3labs/diff" | ||
| "github.com/tikv/client-go/v2/oracle" | ||
| ) | ||
|
|
||
| // verifyCreateChangefeedConfig verify ChangefeedConfig for create a changefeed | ||
| func verifyCreateChangefeedConfig(ctx context.Context, changefeedConfig model.ChangefeedConfig, capture *Capture) (*model.ChangeFeedInfo, error) { | ||
| // verify sinkURI | ||
| if changefeedConfig.SinkURI == "" { | ||
| return nil, cerror.ErrSinkURIInvalid.GenWithStackByArgs("sink-uri is empty, can't not create a changefeed without sink-uri") | ||
| } | ||
|
|
||
| // verify changefeedID | ||
| if err := model.ValidateChangefeedID(changefeedConfig.ID); err != nil { | ||
| return nil, cerror.ErrAPIInvalidParam.GenWithStack("invalid changefeed_id: %s", changefeedConfig.ID) | ||
| } | ||
| // check if the changefeed exists && check if the etcdClient work well | ||
| cfStatus, _, err := capture.etcdClient.GetChangeFeedStatus(ctx, changefeedConfig.ID) | ||
| if err != nil && cerror.ErrChangeFeedNotExists.NotEqual(err) { | ||
| return nil, err | ||
| } | ||
| if cfStatus != nil { | ||
| return nil, cerror.ErrChangeFeedAlreadyExists.GenWithStackByArgs(changefeedConfig.ID) | ||
| } | ||
|
|
||
| // verify start-ts | ||
| if changefeedConfig.StartTS == 0 { | ||
| ts, logical, err := capture.pdClient.GetTS(ctx) | ||
| if err != nil { | ||
| return nil, cerror.ErrPDEtcdAPIError.GenWithStackByArgs("fail to get ts from pd client") | ||
| } | ||
| changefeedConfig.StartTS = oracle.ComposeTS(ts, logical) | ||
| } | ||
|
|
||
| // Ensure the start ts is valid in the next 1 hour. | ||
| const ensureTTL = 60 * 60 | ||
| if err := gc.EnsureChangefeedStartTsSafety( | ||
| ctx, capture.pdClient, changefeedConfig.ID, ensureTTL, changefeedConfig.StartTS); err != nil { | ||
| if !cerror.ErrStartTsBeforeGC.Equal(err) { | ||
| return nil, cerror.ErrPDEtcdAPIError.Wrap(err) | ||
| } | ||
| return nil, err | ||
| } | ||
|
|
||
| // verify target-ts | ||
| if changefeedConfig.TargetTS > 0 && changefeedConfig.TargetTS <= changefeedConfig.StartTS { | ||
| return nil, cerror.ErrTargetTsBeforeStartTs.GenWithStackByArgs(changefeedConfig.TargetTS, changefeedConfig.StartTS) | ||
| } | ||
|
|
||
| // init replicaConfig | ||
| replicaConfig := config.GetDefaultReplicaConfig() | ||
| replicaConfig.ForceReplicate = changefeedConfig.ForceReplicate | ||
| if changefeedConfig.MounterWorkerNum != 0 { | ||
| replicaConfig.Mounter.WorkerNum = changefeedConfig.MounterWorkerNum | ||
| } | ||
| if changefeedConfig.SinkConfig != nil { | ||
| replicaConfig.Sink = changefeedConfig.SinkConfig | ||
| } | ||
| if len(changefeedConfig.IgnoreTxnStartTs) != 0 { | ||
| replicaConfig.Filter.IgnoreTxnStartTs = changefeedConfig.IgnoreTxnStartTs | ||
| } | ||
| if len(changefeedConfig.FilterRules) != 0 { | ||
| replicaConfig.Filter.Rules = changefeedConfig.FilterRules | ||
| } | ||
|
|
||
| _, captureInfos, err := capture.etcdClient.GetCaptures(ctx) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| // set sortEngine and EnableOldValue | ||
| cdcClusterVer, err := version.GetTiCDCClusterVersion(captureInfos) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| sortEngine := model.SortUnified | ||
| if !cdcClusterVer.ShouldEnableOldValueByDefault() { | ||
| replicaConfig.EnableOldValue = false | ||
| log.Warn("The TiCDC cluster is built from unknown branch or less than 5.0.0-rc, the old-value are disabled by default.") | ||
| if !cdcClusterVer.ShouldEnableUnifiedSorterByDefault() { | ||
| sortEngine = model.SortInMemory | ||
| } | ||
| } | ||
|
|
||
| // init ChangefeedInfo | ||
| info := &model.ChangeFeedInfo{ | ||
| SinkURI: changefeedConfig.SinkURI, | ||
| Opts: make(map[string]string), | ||
| CreateTime: time.Now(), | ||
| StartTs: changefeedConfig.StartTS, | ||
| TargetTs: changefeedConfig.TargetTS, | ||
| Config: replicaConfig, | ||
| Engine: sortEngine, | ||
| State: model.StateNormal, | ||
| SyncPointEnabled: false, | ||
| SyncPointInterval: 10 * time.Minute, | ||
| CreatorVersion: version.ReleaseVersion, | ||
| } | ||
|
|
||
| if !replicaConfig.ForceReplicate && !changefeedConfig.IgnoreIneligibleTable { | ||
| ineligibleTables, _, err := verifyTables(replicaConfig, capture.kvStorage, changefeedConfig.StartTS) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if len(ineligibleTables) != 0 { | ||
| return nil, cerror.ErrTableIneligible.GenWithStackByArgs(ineligibleTables) | ||
| } | ||
| } | ||
|
|
||
| tz, err := util.GetTimezone(changefeedConfig.TimeZone) | ||
| if err != nil { | ||
| return nil, errors.Annotate(err, "invalid timezone:"+changefeedConfig.TimeZone) | ||
| } | ||
| ctx = util.PutTimezoneInCtx(ctx, tz) | ||
| err = verifySink(ctx, info.SinkURI, info.Config, info.Opts) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return info, nil | ||
| } | ||
|
|
||
| // verifyUpdateChangefeedConfig verify ChangefeedConfig for update a changefeed | ||
| func verifyUpdateChangefeedConfig(ctx context.Context, changefeedConfig model.ChangefeedConfig, oldInfo *model.ChangeFeedInfo) (*model.ChangeFeedInfo, error) { | ||
| newInfo, err := oldInfo.Clone() | ||
| if err != nil { | ||
| return nil, cerror.ErrChangefeedUpdateRefused.GenWithStackByArgs(err.Error()) | ||
| } | ||
| // verify target_ts | ||
| if changefeedConfig.TargetTS != 0 { | ||
| if changefeedConfig.TargetTS <= newInfo.StartTs { | ||
| return nil, cerror.ErrChangefeedUpdateRefused.GenWithStack("can not update target-ts:%d less than start-ts:%d", changefeedConfig.TargetTS, newInfo.StartTs) | ||
| } | ||
| newInfo.TargetTs = changefeedConfig.TargetTS | ||
| } | ||
|
|
||
| // verify rules | ||
| if len(changefeedConfig.FilterRules) != 0 { | ||
| newInfo.Config.Filter.Rules = changefeedConfig.FilterRules | ||
| _, err = filter.VerifyRules(newInfo.Config) | ||
| if err != nil { | ||
| return nil, cerror.ErrChangefeedUpdateRefused.GenWithStackByArgs(err.Error()) | ||
| } | ||
| } | ||
|
|
||
| if len(changefeedConfig.IgnoreTxnStartTs) != 0 { | ||
| newInfo.Config.Filter.IgnoreTxnStartTs = changefeedConfig.IgnoreTxnStartTs | ||
| } | ||
|
|
||
| if changefeedConfig.MounterWorkerNum != 0 { | ||
| newInfo.Config.Mounter.WorkerNum = changefeedConfig.MounterWorkerNum | ||
| } | ||
|
|
||
| if changefeedConfig.SinkConfig != nil { | ||
| newInfo.Config.Sink = changefeedConfig.SinkConfig | ||
| } | ||
|
|
||
| // verify sink_uri | ||
| if changefeedConfig.SinkURI != "" { | ||
| newInfo.SinkURI = changefeedConfig.SinkURI | ||
| err = verifySink(ctx, changefeedConfig.SinkURI, newInfo.Config, newInfo.Opts) | ||
| if err != nil { | ||
| return nil, cerror.ErrChangefeedUpdateRefused.GenWithStackByCause(err) | ||
| } | ||
| } | ||
|
|
||
| if !diff.Changed(oldInfo, newInfo) { | ||
| return nil, cerror.ErrChangefeedUpdateRefused.GenWithStackByArgs("changefeed config is the same with the old one, do nothing") | ||
| } | ||
|
|
||
| return newInfo, nil | ||
| } | ||
|
|
||
| func verifySink(ctx context.Context, sinkURI string, cfg *config.ReplicaConfig, opts map[string]string) error { | ||
| sinkFilter, err := filter.NewFilter(cfg) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| errCh := make(chan error) | ||
| // TODO: find a better way to verify a sinkURI is valid | ||
| s, err := sink.NewSink(ctx, "sink-verify", sinkURI, sinkFilter, cfg, opts, errCh) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = s.Close(ctx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| select { | ||
| case err = <-errCh: | ||
| if err != nil { | ||
| return err | ||
| } | ||
| default: | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func verifyTables(replicaConfig *config.ReplicaConfig, storage tidbkv.Storage, startTs uint64) (ineligibleTables, eligibleTables []model.TableName, err error) { | ||
| filter, err := filter.NewFilter(replicaConfig) | ||
| if err != nil { | ||
| return nil, nil, errors.Trace(err) | ||
| } | ||
| meta, err := kv.GetSnapshotMeta(storage, startTs) | ||
| if err != nil { | ||
| return nil, nil, errors.Trace(err) | ||
| } | ||
| snap, err := entry.NewSingleSchemaSnapshotFromMeta(meta, startTs, false /* explicitTables */) | ||
| if err != nil { | ||
| return nil, nil, errors.Trace(err) | ||
| } | ||
|
|
||
| for _, tableInfo := range snap.Tables() { | ||
| if filter.ShouldIgnoreTable(tableInfo.TableName.Schema, tableInfo.TableName.Table) { | ||
| continue | ||
| } | ||
| if !tableInfo.IsEligible(false /* forceReplicate */) { | ||
| ineligibleTables = append(ineligibleTables, tableInfo.TableName) | ||
| } else { | ||
| eligibleTables = append(eligibleTables, tableInfo.TableName) | ||
| } | ||
| } | ||
| return | ||
| } |
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