121 lines
3.3 KiB
Go
121 lines
3.3 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 handle
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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/tidb/disttask/framework/proto"
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"github.com/pingcap/tidb/disttask/framework/storage"
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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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var (
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checkTaskFinishInterval = 300 * time.Millisecond
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)
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// SubmitGlobalTask submits a global task.
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func SubmitGlobalTask(taskKey, taskType string, concurrency int, taskMeta []byte) (*proto.Task, error) {
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globalTaskManager, err := storage.GetTaskManager()
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if err != nil {
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return nil, err
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}
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globalTask, err := globalTaskManager.GetGlobalTaskByKey(taskKey)
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if err != nil {
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return nil, err
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}
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if globalTask == nil {
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taskID, err := globalTaskManager.AddNewGlobalTask(taskKey, taskType, concurrency, taskMeta)
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if err != nil {
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return nil, err
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}
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globalTask, err = globalTaskManager.GetGlobalTaskByID(taskID)
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if err != nil {
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return nil, err
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}
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if globalTask == nil {
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return nil, errors.Errorf("cannot find global task with ID %d", taskID)
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}
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}
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return globalTask, nil
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}
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// WaitGlobalTask waits for a global task to finish.
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func WaitGlobalTask(ctx context.Context, globalTask *proto.Task) error {
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globalTaskManager, err := storage.GetTaskManager()
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if err != nil {
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return err
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}
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ticker := time.NewTicker(checkTaskFinishInterval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return ctx.Err()
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case <-ticker.C:
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found, err := globalTaskManager.GetGlobalTaskByID(globalTask.ID)
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if err != nil {
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return errors.Errorf("cannot get global task with ID %d, err %s", globalTask.ID, err.Error())
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}
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if found == nil {
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return errors.Errorf("cannot find global task with ID %d", globalTask.ID)
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}
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switch found.State {
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case proto.TaskStateSucceed:
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return nil
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case proto.TaskStateReverted:
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logutil.BgLogger().Error("global task reverted", zap.Int64("task-id", globalTask.ID), zap.Error(found.Error))
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return found.Error
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case proto.TaskStateFailed, proto.TaskStateCanceled:
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return errors.Errorf("task stopped with state %s, err %v", found.State, found.Error)
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}
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}
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}
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}
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// SubmitAndRunGlobalTask submits a global task and wait for it to finish.
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func SubmitAndRunGlobalTask(ctx context.Context, taskKey, taskType string, concurrency int, taskMeta []byte) error {
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globalTask, err := SubmitGlobalTask(taskKey, taskType, concurrency, taskMeta)
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if err != nil {
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return err
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}
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return WaitGlobalTask(ctx, globalTask)
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}
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// CancelGlobalTask cancels a global task.
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func CancelGlobalTask(taskKey string) error {
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globalTaskManager, err := storage.GetTaskManager()
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if err != nil {
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return err
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}
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globalTask, err := globalTaskManager.GetGlobalTaskByKey(taskKey)
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if err != nil {
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return err
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}
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if globalTask == nil {
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return nil
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}
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return globalTaskManager.CancelGlobalTask(globalTask.ID)
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}
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