68 lines
2.4 KiB
Go
68 lines
2.4 KiB
Go
// Copyright 2023 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package loaddata
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import (
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"context"
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"time"
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"github.com/pingcap/errors"
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"github.com/pingcap/failpoint"
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"github.com/pingcap/tidb/disttask/framework/proto"
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"github.com/pingcap/tidb/disttask/framework/scheduler"
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"github.com/pingcap/tidb/executor/importer"
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"github.com/pingcap/tidb/util/logutil"
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"go.uber.org/zap"
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)
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// ImportMinimalTaskExecutor is a subtask executor for load data.
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type ImportMinimalTaskExecutor struct {
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task *MinimalTaskMeta
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}
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// Run implements the SubtaskExecutor.Run interface.
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func (e *ImportMinimalTaskExecutor) Run(ctx context.Context) error {
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logger := logutil.BgLogger().With(zap.String("component", "minimal task executor"), zap.String("type", proto.LoadData), zap.Int64("table_id", e.task.Plan.TableInfo.ID))
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logger.Info("subtask executor run", zap.Any("task", e.task))
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failpoint.Inject("errorWhenSortChunk", func() {
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time.Sleep(3 * time.Second) // wait ToImportMode called
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failpoint.Return(errors.New("occur an error when sort chunk"))
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})
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chunkCheckpoint := toChunkCheckpoint(e.task.Chunk)
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sharedVars := e.task.SharedVars
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if err := importer.ProcessChunk(ctx, &chunkCheckpoint, sharedVars.TableImporter, sharedVars.DataEngine, sharedVars.IndexEngine, sharedVars.Progress, logger); err != nil {
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return err
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}
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sharedVars.mu.Lock()
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defer sharedVars.mu.Unlock()
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sharedVars.Checksum.Add(&chunkCheckpoint.Checksum)
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return nil
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}
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func init() {
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scheduler.RegisterSubtaskExectorConstructor(
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proto.LoadData,
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// The order of the subtask executors is the same as the order of the subtasks.
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func(minimalTask proto.MinimalTask, step int64) (scheduler.SubtaskExecutor, error) {
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task, ok := minimalTask.(MinimalTaskMeta)
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if !ok {
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return nil, errors.Errorf("invalid task type %T", minimalTask)
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}
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return &ImportMinimalTaskExecutor{task: &task}, nil
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},
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)
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}
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