138 lines
4.1 KiB
Go
138 lines
4.1 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 framework_test
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import (
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"context"
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"sync"
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"sync/atomic"
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"testing"
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"github.com/pingcap/failpoint"
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"github.com/pingcap/tidb/disttask/framework/dispatcher"
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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/domain/infosync"
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"github.com/pingcap/tidb/testkit"
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"github.com/stretchr/testify/require"
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)
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type rollbackFlowHandle struct{}
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var _ dispatcher.TaskFlowHandle = (*rollbackFlowHandle)(nil)
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var rollbackCnt atomic.Int32
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func (*rollbackFlowHandle) OnTicker(_ context.Context, _ *proto.Task) {
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}
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func (*rollbackFlowHandle) ProcessNormalFlow(_ context.Context, _ dispatcher.TaskHandle, gTask *proto.Task) (metas [][]byte, err error) {
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if gTask.State == proto.TaskStatePending {
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gTask.Step = proto.StepOne
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return [][]byte{
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[]byte("task1"),
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[]byte("task2"),
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[]byte("task3"),
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}, nil
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}
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return nil, nil
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}
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func (*rollbackFlowHandle) ProcessErrFlow(_ context.Context, _ dispatcher.TaskHandle, _ *proto.Task, _ []error) (meta []byte, err error) {
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return []byte("rollbacktask1"), nil
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}
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func (*rollbackFlowHandle) GetEligibleInstances(_ context.Context, _ *proto.Task) ([]*infosync.ServerInfo, error) {
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return generateSchedulerNodes4Test()
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}
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func (*rollbackFlowHandle) IsRetryableErr(error) bool {
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return true
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}
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type testRollbackMiniTask struct{}
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func (testRollbackMiniTask) IsMinimalTask() {}
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func (testRollbackMiniTask) String() string {
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return ""
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}
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type rollbackScheduler struct {
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m *sync.Map
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}
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func (*rollbackScheduler) InitSubtaskExecEnv(_ context.Context) error { return nil }
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func (t *rollbackScheduler) CleanupSubtaskExecEnv(_ context.Context) error { return nil }
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func (t *rollbackScheduler) Rollback(_ context.Context) error {
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t.m = &sync.Map{}
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rollbackCnt.Add(1)
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return nil
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}
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func (t *rollbackScheduler) SplitSubtask(_ context.Context, _ []byte) ([]proto.MinimalTask, error) {
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return []proto.MinimalTask{
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testRollbackMiniTask{},
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testRollbackMiniTask{},
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testRollbackMiniTask{},
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}, nil
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}
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func (t *rollbackScheduler) OnSubtaskFinished(_ context.Context, meta []byte) ([]byte, error) {
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return meta, nil
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}
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type rollbackSubtaskExecutor struct {
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m *sync.Map
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}
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func (e *rollbackSubtaskExecutor) Run(_ context.Context) error {
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e.m.Store("1", "1")
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return nil
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}
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func RegisterRollbackTaskMeta(m *sync.Map) {
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dispatcher.ClearTaskFlowHandle()
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dispatcher.RegisterTaskFlowHandle(proto.TaskTypeExample, &rollbackFlowHandle{})
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scheduler.ClearSchedulers()
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scheduler.RegisterTaskType(proto.TaskTypeExample)
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scheduler.RegisterSchedulerConstructor(proto.TaskTypeExample, proto.StepOne, func(_ context.Context, _ int64, _ []byte, _ int64) (scheduler.Scheduler, error) {
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return &rollbackScheduler{m: m}, nil
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})
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scheduler.RegisterSubtaskExectorConstructor(proto.TaskTypeExample, proto.StepOne, func(_ proto.MinimalTask, _ int64) (scheduler.SubtaskExecutor, error) {
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return &rollbackSubtaskExecutor{m: m}, nil
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})
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rollbackCnt.Store(0)
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}
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func TestFrameworkRollback(t *testing.T) {
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defer dispatcher.ClearTaskFlowHandle()
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defer scheduler.ClearSchedulers()
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m := sync.Map{}
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RegisterRollbackTaskMeta(&m)
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distContext := testkit.NewDistExecutionContext(t, 2)
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require.NoError(t, failpoint.Enable("github.com/pingcap/tidb/disttask/framework/dispatcher/cancelTaskAfterRefreshTask", "2*return(true)"))
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defer func() {
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require.NoError(t, failpoint.Disable("github.com/pingcap/tidb/disttask/framework/dispatcher/cancelTaskAfterRefreshTask"))
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}()
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DispatchTaskAndCheckFail("key2", t, &m)
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require.Equal(t, int32(2), rollbackCnt.Load())
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rollbackCnt.Store(0)
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distContext.Close()
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}
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