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ddl_worker_test.go
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// Copyright 2015 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ddl
import (
"context"
"sync"
"testing"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/errors"
"github.com/pingcap/failpoint"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/meta"
"github.com/pingcap/tidb/parser/ast"
"github.com/pingcap/tidb/parser/charset"
"github.com/pingcap/tidb/parser/model"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/parser/terror"
"github.com/pingcap/tidb/sessionctx"
"github.com/pingcap/tidb/table"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/admin"
"github.com/pingcap/tidb/util/mock"
"github.com/pingcap/tidb/util/sqlexec"
"github.com/pingcap/tidb/util/testutil"
"github.com/stretchr/testify/require"
)
var _ = Suite(&testDDLSuite{})
var _ = SerialSuites(&testDDLSerialSuite{})
type testDDLSuite struct {
testutil.CommonHandleSuite
}
type testDDLSerialSuite struct{}
const testLease = 5 * time.Millisecond
func (s *testDDLSerialSuite) SetUpSuite(c *C) {
SetWaitTimeWhenErrorOccurred(1 * time.Microsecond)
// We hope that this test is serially executed. So put it here.
s.testRunWorker(c)
}
func (s *testDDLSuite) TestCheckOwner(c *C) {
store := testCreateStore(c, "test_owner")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d1, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d1.Stop()
c.Assert(err, IsNil)
}()
time.Sleep(testLease)
testCheckOwner(c, d1, true)
c.Assert(d1.GetLease(), Equals, testLease)
}
func (s *testDDLSuite) TestNotifyDDLJob(c *C) {
store := testCreateStore(c, "test_notify_job")
defer store.Close()
getFirstNotificationAfterStartDDL := func(d *ddl) {
select {
case <-d.workers[addIdxWorker].ddlJobCh:
default:
// The notification may be received by the worker.
}
select {
case <-d.workers[generalWorker].ddlJobCh:
default:
// The notification may be received by the worker.
}
}
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
getFirstNotificationAfterStartDDL(d)
// Ensure that the notification is not handled in workers `start` function.
d.cancel()
for _, worker := range d.workers {
worker.close()
}
job := &model.Job{
SchemaID: 1,
TableID: 2,
Type: model.ActionCreateTable,
BinlogInfo: &model.HistoryInfo{},
Args: []interface{}{},
}
// Test the notification mechanism of the owner and the server receiving the DDL request on the same TiDB.
// This DDL request is a general DDL job.
d.asyncNotifyWorker(job)
select {
case <-d.workers[generalWorker].ddlJobCh:
default:
c.Fatal("do not get the general job notification")
}
// Test the notification mechanism of the owner and the server receiving the DDL request on the same TiDB.
// This DDL request is a add index DDL job.
job.Type = model.ActionAddIndex
d.asyncNotifyWorker(job)
select {
case <-d.workers[addIdxWorker].ddlJobCh:
default:
c.Fatal("do not get the add index job notification")
}
// Test the notification mechanism that the owner and the server receiving the DDL request are not on the same TiDB.
// And the etcd client is nil.
d1, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d1.Stop()
c.Assert(err, IsNil)
}()
getFirstNotificationAfterStartDDL(d1)
// Ensure that the notification is not handled by worker's "start".
d1.cancel()
for _, worker := range d1.workers {
worker.close()
}
d1.ownerManager.RetireOwner()
d1.asyncNotifyWorker(job)
job.Type = model.ActionCreateTable
d1.asyncNotifyWorker(job)
testCheckOwner(c, d1, false)
select {
case <-d1.workers[addIdxWorker].ddlJobCh:
c.Fatal("should not get the add index job notification")
case <-d1.workers[generalWorker].ddlJobCh:
c.Fatal("should not get the general job notification")
default:
}
}
// testRunWorker tests no job is handled when the value of RunWorker is false.
func (s *testDDLSerialSuite) testRunWorker(c *C) {
store := testCreateStore(c, "test_run_worker")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
RunWorker = false
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
testCheckOwner(c, d, false)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
// Make sure the DDL worker is nil.
worker := d.generalWorker()
c.Assert(worker, IsNil)
// Make sure the DDL job can be done and exit that goroutine.
RunWorker = true
d1, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
testCheckOwner(c, d1, true)
defer func() {
err := d1.Stop()
c.Assert(err, IsNil)
}()
worker = d1.generalWorker()
c.Assert(worker, NotNil)
}
func (s *testDDLSuite) TestSchemaError(c *C) {
store := testCreateStore(c, "test_schema_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
doDDLJobErr(c, 1, 0, model.ActionCreateSchema, []interface{}{1}, ctx, d)
}
func (s *testDDLSuite) TestTableError(c *C) {
store := testCreateStore(c, "test_table_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
// Schema ID is wrong, so dropping table is failed.
doDDLJobErr(c, -1, 1, model.ActionDropTable, nil, ctx, d)
// Table ID is wrong, so dropping table is failed.
dbInfo, err := testSchemaInfo(d, "test_ddl")
c.Assert(err, IsNil)
testCreateSchema(c, testNewContext(d), d, dbInfo)
job := doDDLJobErr(c, dbInfo.ID, -1, model.ActionDropTable, nil, ctx, d)
// Table ID or schema ID is wrong, so getting table is failed.
tblInfo, err := testTableInfo(d, "t", 3)
c.Assert(err, IsNil)
testCreateTable(c, ctx, d, dbInfo, tblInfo)
err = kv.RunInNewTxn(context.Background(), store, false, func(ctx context.Context, txn kv.Transaction) error {
job.SchemaID = -1
job.TableID = -1
t := meta.NewMeta(txn)
_, err1 := getTableInfoAndCancelFaultJob(t, job, job.SchemaID)
c.Assert(err1, NotNil)
job.SchemaID = dbInfo.ID
_, err1 = getTableInfoAndCancelFaultJob(t, job, job.SchemaID)
c.Assert(err1, NotNil)
return nil
})
c.Assert(err, IsNil)
// Args is wrong, so creating table is failed.
doDDLJobErr(c, 1, 1, model.ActionCreateTable, []interface{}{1}, ctx, d)
// Schema ID is wrong, so creating table is failed.
doDDLJobErr(c, -1, tblInfo.ID, model.ActionCreateTable, []interface{}{tblInfo}, ctx, d)
// Table exists, so creating table is failed.
tblInfo.ID++
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionCreateTable, []interface{}{tblInfo}, ctx, d)
}
func (s *testDDLSuite) TestViewError(c *C) {
store := testCreateStore(c, "test_view_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
dbInfo, err := testSchemaInfo(d, "test_ddl")
c.Assert(err, IsNil)
testCreateSchema(c, testNewContext(d), d, dbInfo)
// Table ID or schema ID is wrong, so getting table is failed.
tblInfo := testViewInfo(c, d, "t", 3)
testCreateView(c, ctx, d, dbInfo, tblInfo)
// Args is wrong, so creating view is failed.
doDDLJobErr(c, 1, 1, model.ActionCreateView, []interface{}{1}, ctx, d)
// Schema ID is wrong and orReplace is false, so creating view is failed.
doDDLJobErr(c, -1, tblInfo.ID, model.ActionCreateView, []interface{}{tblInfo, false}, ctx, d)
// View exists and orReplace is false, so creating view is failed.
tblInfo.ID++
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionCreateView, []interface{}{tblInfo, false}, ctx, d)
}
func (s *testDDLSuite) TestInvalidDDLJob(c *C) {
store := testCreateStore(c, "test_invalid_ddl_job_type_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
job := &model.Job{
SchemaID: 0,
TableID: 0,
Type: model.ActionNone,
BinlogInfo: &model.HistoryInfo{},
Args: []interface{}{},
}
err = d.doDDLJob(ctx, job)
c.Assert(err.Error(), Equals, "[ddl:8204]invalid ddl job type: none")
}
func (s *testDDLSuite) TestForeignKeyError(c *C) {
store := testCreateStore(c, "test_foreign_key_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
doDDLJobErr(c, -1, 1, model.ActionAddForeignKey, nil, ctx, d)
doDDLJobErr(c, -1, 1, model.ActionDropForeignKey, nil, ctx, d)
dbInfo, err := testSchemaInfo(d, "test_ddl")
c.Assert(err, IsNil)
tblInfo, err := testTableInfo(d, "t", 3)
c.Assert(err, IsNil)
testCreateSchema(c, ctx, d, dbInfo)
testCreateTable(c, ctx, d, dbInfo, tblInfo)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionDropForeignKey, []interface{}{model.NewCIStr("c1_foreign_key")}, ctx, d)
}
func (s *testDDLSuite) TestIndexError(c *C) {
store := testCreateStore(c, "test_index_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
// Schema ID is wrong.
doDDLJobErr(c, -1, 1, model.ActionAddIndex, nil, ctx, d)
doDDLJobErr(c, -1, 1, model.ActionDropIndex, nil, ctx, d)
dbInfo, err := testSchemaInfo(d, "test_ddl")
c.Assert(err, IsNil)
tblInfo, err := testTableInfo(d, "t", 3)
c.Assert(err, IsNil)
testCreateSchema(c, ctx, d, dbInfo)
testCreateTable(c, ctx, d, dbInfo, tblInfo)
// for adding index
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddIndex, []interface{}{1}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddIndex,
[]interface{}{false, model.NewCIStr("t"), 1,
[]*ast.IndexPartSpecification{{Column: &ast.ColumnName{Name: model.NewCIStr("c")}, Length: 256}}}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddIndex,
[]interface{}{false, model.NewCIStr("c1_index"), 1,
[]*ast.IndexPartSpecification{{Column: &ast.ColumnName{Name: model.NewCIStr("c")}, Length: 256}}}, ctx, d)
testCreateIndex(c, ctx, d, dbInfo, tblInfo, false, "c1_index", "c1")
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddIndex,
[]interface{}{false, model.NewCIStr("c1_index"), 1,
[]*ast.IndexPartSpecification{{Column: &ast.ColumnName{Name: model.NewCIStr("c1")}, Length: 256}}}, ctx, d)
// for dropping index
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionDropIndex, []interface{}{1}, ctx, d)
testDropIndex(c, ctx, d, dbInfo, tblInfo, "c1_index")
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionDropIndex, []interface{}{model.NewCIStr("c1_index")}, ctx, d)
}
func (s *testDDLSuite) TestColumnError(c *C) {
store := testCreateStore(c, "test_column_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
dbInfo, err := testSchemaInfo(d, "test_ddl")
c.Assert(err, IsNil)
tblInfo, err := testTableInfo(d, "t", 3)
c.Assert(err, IsNil)
testCreateSchema(c, ctx, d, dbInfo)
testCreateTable(c, ctx, d, dbInfo, tblInfo)
col := &model.ColumnInfo{
Name: model.NewCIStr("c4"),
Offset: len(tblInfo.Columns),
DefaultValue: 0,
}
col.ID = allocateColumnID(tblInfo)
col.FieldType = *types.NewFieldType(mysql.TypeLong)
pos := &ast.ColumnPosition{Tp: ast.ColumnPositionAfter, RelativeColumn: &ast.ColumnName{Name: model.NewCIStr("c5")}}
cols := &[]*model.ColumnInfo{col}
positions := &[]*ast.ColumnPosition{pos}
// for adding column
doDDLJobErr(c, -1, tblInfo.ID, model.ActionAddColumn, []interface{}{col, pos, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, -1, model.ActionAddColumn, []interface{}{col, pos, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddColumn, []interface{}{0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddColumn, []interface{}{col, pos, 0}, ctx, d)
// for dropping column
doDDLJobErr(c, -1, tblInfo.ID, model.ActionDropColumn, []interface{}{col, pos, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, -1, model.ActionDropColumn, []interface{}{col, pos, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionDropColumn, []interface{}{0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionDropColumn, []interface{}{model.NewCIStr("c5")}, ctx, d)
// for adding columns
doDDLJobErr(c, -1, tblInfo.ID, model.ActionAddColumns, []interface{}{cols, positions, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, -1, model.ActionAddColumns, []interface{}{cols, positions, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddColumns, []interface{}{0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionAddColumns, []interface{}{cols, positions, 0}, ctx, d)
// for dropping columns
doDDLJobErr(c, -1, tblInfo.ID, model.ActionDropColumns, []interface{}{col, pos, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, -1, model.ActionDropColumns, []interface{}{col, pos, 0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionDropColumns, []interface{}{0}, ctx, d)
doDDLJobErr(c, dbInfo.ID, tblInfo.ID, model.ActionDropColumns, []interface{}{[]model.CIStr{model.NewCIStr("c5"), model.NewCIStr("c6")}, make([]bool, 2)}, ctx, d)
}
func (s *testDDLSerialSuite) TestAddBatchJobError(c *C) {
store := testCreateStore(c, "test_add_batch_job_error")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
ctx := testNewContext(d)
c.Assert(failpoint.Enable("github.com/pingcap/tidb/ddl/mockAddBatchDDLJobsErr", `return(true)`), IsNil)
// Test the job runner should not hang forever.
job := &model.Job{SchemaID: 1, TableID: 1}
err = d.doDDLJob(ctx, job)
c.Assert(err, NotNil)
c.Assert(err.Error(), Equals, "mockAddBatchDDLJobsErr")
c.Assert(failpoint.Disable("github.com/pingcap/tidb/ddl/mockAddBatchDDLJobsErr"), IsNil)
}
func testCheckOwner(c *C, d *ddl, expectedVal bool) {
c.Assert(d.isOwner(), Equals, expectedVal)
}
func testCheckJobDone(c *C, d *ddl, job *model.Job, isAdd bool) {
err := kv.RunInNewTxn(context.Background(), d.store, false, func(ctx context.Context, txn kv.Transaction) error {
t := meta.NewMeta(txn)
historyJob, err := t.GetHistoryDDLJob(job.ID)
c.Assert(err, IsNil)
checkHistoryJob(c, historyJob)
if isAdd {
c.Assert(historyJob.SchemaState, Equals, model.StatePublic)
} else {
c.Assert(historyJob.SchemaState, Equals, model.StateNone)
}
return nil
})
c.Assert(err, IsNil)
}
func testCheckJobDoneT(t *testing.T, d *ddl, job *model.Job, isAdd bool) {
err := kv.RunInNewTxn(context.Background(), d.store, false, func(ctx context.Context, txn kv.Transaction) error {
tt := meta.NewMeta(txn)
historyJob, err := tt.GetHistoryDDLJob(job.ID)
require.NoError(t, err)
require.Equal(t, model.JobStateSynced, historyJob.State)
if isAdd {
require.Equal(t, model.StatePublic, historyJob.SchemaState)
} else {
require.Equal(t, model.StateNone, historyJob.SchemaState)
}
return nil
})
require.NoError(t, err)
}
func testCheckJobCancelledT(t *testing.T, d *ddl, job *model.Job, state *model.SchemaState) {
err := kv.RunInNewTxn(context.Background(), d.store, false, func(ctx context.Context, txn kv.Transaction) error {
tt := meta.NewMeta(txn)
historyJob, err := tt.GetHistoryDDLJob(job.ID)
require.NoError(t, err)
require.True(t, historyJob.IsCancelled() || historyJob.IsRollbackDone(), "history job %s", historyJob)
if state != nil {
require.Equal(t, *state, historyJob.SchemaState)
}
return nil
})
require.NoError(t, err)
}
func testCheckJobCancelled(c *C, d *ddl, job *model.Job, state *model.SchemaState) {
err := kv.RunInNewTxn(context.Background(), d.store, false, func(ctx context.Context, txn kv.Transaction) error {
t := meta.NewMeta(txn)
historyJob, err := t.GetHistoryDDLJob(job.ID)
c.Assert(err, IsNil)
c.Assert(historyJob.IsCancelled() || historyJob.IsRollbackDone(), IsTrue, Commentf("history job %s", historyJob))
if state != nil {
c.Assert(historyJob.SchemaState, Equals, *state)
}
return nil
})
c.Assert(err, IsNil)
}
func doDDLJobErrWithSchemaState(ctx sessionctx.Context, d *ddl, c *C, schemaID, tableID int64, tp model.ActionType,
args []interface{}, state *model.SchemaState) *model.Job {
job := &model.Job{
SchemaID: schemaID,
TableID: tableID,
Type: tp,
Args: args,
BinlogInfo: &model.HistoryInfo{},
}
err := d.doDDLJob(ctx, job)
// TODO: Add the detail error check.
c.Assert(err, NotNil, Commentf("err:%v", err))
testCheckJobCancelled(c, d, job, state)
return job
}
func doDDLJobErrWithSchemaStateT(ctx sessionctx.Context, d *ddl, t *testing.T, schemaID, tableID int64, tp model.ActionType,
args []interface{}, state *model.SchemaState) *model.Job {
job := &model.Job{
SchemaID: schemaID,
TableID: tableID,
Type: tp,
Args: args,
BinlogInfo: &model.HistoryInfo{},
}
err := d.doDDLJob(ctx, job)
// TODO: Add the detail error check.
require.Error(t, err, "err:%v", err)
testCheckJobCancelledT(t, d, job, state)
return job
}
func doDDLJobSuccess(ctx sessionctx.Context, d *ddl, c *C, schemaID, tableID int64, tp model.ActionType,
args []interface{}) {
job := &model.Job{
SchemaID: schemaID,
TableID: tableID,
Type: tp,
Args: args,
BinlogInfo: &model.HistoryInfo{},
}
err := d.doDDLJob(ctx, job)
c.Assert(err, IsNil)
}
func doDDLJobErr(c *C, schemaID, tableID int64, tp model.ActionType, args []interface{},
ctx sessionctx.Context, d *ddl) *model.Job {
return doDDLJobErrWithSchemaState(ctx, d, c, schemaID, tableID, tp, args, nil)
}
func doDDLJobErrT(t *testing.T, schemaID, tableID int64, tp model.ActionType, args []interface{},
ctx sessionctx.Context, d *ddl) *model.Job {
return doDDLJobErrWithSchemaStateT(ctx, d, t, schemaID, tableID, tp, args, nil)
}
func checkCancelState(txn kv.Transaction, job *model.Job, test *testCancelJob) error {
var checkErr error
addIndexFirstReorg := (test.act == model.ActionAddIndex || test.act == model.ActionAddPrimaryKey) &&
job.SchemaState == model.StateWriteReorganization && job.SnapshotVer == 0
// If the action is adding index and the state is writing reorganization, it wants to test the case of cancelling the job when backfilling indexes.
// When the job satisfies this case of addIndexFirstReorg, the worker hasn't started to backfill indexes.
if test.cancelState == job.SchemaState && !addIndexFirstReorg && !job.IsRollingback() {
errs, err := admin.CancelJobs(txn, test.jobIDs)
if err != nil {
checkErr = errors.Trace(err)
return checkErr
}
// It only tests cancel one DDL job.
if !terror.ErrorEqual(errs[0], test.cancelRetErrs[0]) {
checkErr = errors.Trace(errs[0])
return checkErr
}
}
return checkErr
}
type testCancelJob struct {
jobIDs []int64
cancelRetErrs []error // cancelRetErrs is the first return value of CancelJobs.
act model.ActionType // act is the job action.
cancelState model.SchemaState
}
func buildCancelJobTests(firstID int64) []testCancelJob {
noErrs := []error{nil}
tests := []testCancelJob{
{act: model.ActionAddIndex, jobIDs: []int64{firstID + 1}, cancelRetErrs: noErrs, cancelState: model.StateDeleteOnly},
{act: model.ActionAddIndex, jobIDs: []int64{firstID + 2}, cancelRetErrs: noErrs, cancelState: model.StateWriteOnly},
{act: model.ActionAddIndex, jobIDs: []int64{firstID + 3}, cancelRetErrs: noErrs, cancelState: model.StateWriteReorganization},
{act: model.ActionAddIndex, jobIDs: []int64{firstID + 4}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 4)}, cancelState: model.StatePublic},
// Test cancel drop index job , see TestCancelDropIndex.
{act: model.ActionAddColumn, jobIDs: []int64{firstID + 5}, cancelRetErrs: noErrs, cancelState: model.StateDeleteOnly},
{act: model.ActionAddColumn, jobIDs: []int64{firstID + 6}, cancelRetErrs: noErrs, cancelState: model.StateWriteOnly},
{act: model.ActionAddColumn, jobIDs: []int64{firstID + 7}, cancelRetErrs: noErrs, cancelState: model.StateWriteReorganization},
{act: model.ActionAddColumn, jobIDs: []int64{firstID + 8}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 8)}, cancelState: model.StatePublic},
// Test create table, watch out, table id will alloc a globalID.
{act: model.ActionCreateTable, jobIDs: []int64{firstID + 10}, cancelRetErrs: noErrs, cancelState: model.StateNone},
// Test create database, watch out, database id will alloc a globalID.
{act: model.ActionCreateSchema, jobIDs: []int64{firstID + 12}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionDropColumn, jobIDs: []int64{firstID + 13}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 13)}, cancelState: model.StateDeleteOnly},
{act: model.ActionDropColumn, jobIDs: []int64{firstID + 14}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 14)}, cancelState: model.StateWriteOnly},
{act: model.ActionDropColumn, jobIDs: []int64{firstID + 15}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 15)}, cancelState: model.StateWriteReorganization},
{act: model.ActionRebaseAutoID, jobIDs: []int64{firstID + 16}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionShardRowID, jobIDs: []int64{firstID + 17}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionModifyColumn, jobIDs: []int64{firstID + 18}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionModifyColumn, jobIDs: []int64{firstID + 19}, cancelRetErrs: noErrs, cancelState: model.StateDeleteOnly},
{act: model.ActionAddForeignKey, jobIDs: []int64{firstID + 20}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionAddForeignKey, jobIDs: []int64{firstID + 21}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 21)}, cancelState: model.StatePublic},
{act: model.ActionDropForeignKey, jobIDs: []int64{firstID + 22}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionDropForeignKey, jobIDs: []int64{firstID + 23}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 23)}, cancelState: model.StatePublic},
{act: model.ActionRenameTable, jobIDs: []int64{firstID + 24}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionRenameTable, jobIDs: []int64{firstID + 25}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 25)}, cancelState: model.StatePublic},
{act: model.ActionModifyTableCharsetAndCollate, jobIDs: []int64{firstID + 26}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionModifyTableCharsetAndCollate, jobIDs: []int64{firstID + 27}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 27)}, cancelState: model.StatePublic},
{act: model.ActionTruncateTablePartition, jobIDs: []int64{firstID + 28}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionTruncateTablePartition, jobIDs: []int64{firstID + 29}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 29)}, cancelState: model.StatePublic},
{act: model.ActionModifySchemaCharsetAndCollate, jobIDs: []int64{firstID + 31}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionModifySchemaCharsetAndCollate, jobIDs: []int64{firstID + 32}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 32)}, cancelState: model.StatePublic},
{act: model.ActionAddPrimaryKey, jobIDs: []int64{firstID + 33}, cancelRetErrs: noErrs, cancelState: model.StateDeleteOnly},
{act: model.ActionAddPrimaryKey, jobIDs: []int64{firstID + 34}, cancelRetErrs: noErrs, cancelState: model.StateWriteOnly},
{act: model.ActionAddPrimaryKey, jobIDs: []int64{firstID + 35}, cancelRetErrs: noErrs, cancelState: model.StateWriteReorganization},
{act: model.ActionAddPrimaryKey, jobIDs: []int64{firstID + 36}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 36)}, cancelState: model.StatePublic},
{act: model.ActionDropPrimaryKey, jobIDs: []int64{firstID + 37}, cancelRetErrs: noErrs, cancelState: model.StateWriteOnly},
{act: model.ActionDropPrimaryKey, jobIDs: []int64{firstID + 38}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 38)}, cancelState: model.StateDeleteOnly},
{act: model.ActionAddColumns, jobIDs: []int64{firstID + 39}, cancelRetErrs: noErrs, cancelState: model.StateDeleteOnly},
{act: model.ActionAddColumns, jobIDs: []int64{firstID + 40}, cancelRetErrs: noErrs, cancelState: model.StateWriteOnly},
{act: model.ActionAddColumns, jobIDs: []int64{firstID + 41}, cancelRetErrs: noErrs, cancelState: model.StateWriteReorganization},
{act: model.ActionAddColumns, jobIDs: []int64{firstID + 42}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 42)}, cancelState: model.StatePublic},
{act: model.ActionDropColumns, jobIDs: []int64{firstID + 43}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 43)}, cancelState: model.StateDeleteOnly},
{act: model.ActionDropColumns, jobIDs: []int64{firstID + 44}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 44)}, cancelState: model.StateWriteOnly},
{act: model.ActionDropColumns, jobIDs: []int64{firstID + 45}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 45)}, cancelState: model.StateWriteReorganization},
{act: model.ActionAlterIndexVisibility, jobIDs: []int64{firstID + 47}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionAlterIndexVisibility, jobIDs: []int64{firstID + 48}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 48)}, cancelState: model.StatePublic},
{act: model.ActionExchangeTablePartition, jobIDs: []int64{firstID + 54}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionExchangeTablePartition, jobIDs: []int64{firstID + 55}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 55)}, cancelState: model.StatePublic},
{act: model.ActionAddTablePartition, jobIDs: []int64{firstID + 60}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionAddTablePartition, jobIDs: []int64{firstID + 61}, cancelRetErrs: noErrs, cancelState: model.StateReplicaOnly},
{act: model.ActionAddTablePartition, jobIDs: []int64{firstID + 62}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob}, cancelState: model.StatePublic},
// modify column has two different types, normal-type and reorg-type. The latter has 5 states and it can be cancelled except the public state.
{act: model.ActionModifyColumn, jobIDs: []int64{firstID + 65}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionModifyColumn, jobIDs: []int64{firstID + 66}, cancelRetErrs: noErrs, cancelState: model.StateDeleteOnly},
{act: model.ActionModifyColumn, jobIDs: []int64{firstID + 67}, cancelRetErrs: noErrs, cancelState: model.StateWriteOnly},
{act: model.ActionModifyColumn, jobIDs: []int64{firstID + 68}, cancelRetErrs: noErrs, cancelState: model.StateWriteReorganization},
{act: model.ActionModifyColumn, jobIDs: []int64{firstID + 69}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob}, cancelState: model.StatePublic},
// for drop indexes
{act: model.ActionDropIndexes, jobIDs: []int64{firstID + 72}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 72)}, cancelState: model.StateWriteOnly},
{act: model.ActionDropIndexes, jobIDs: []int64{firstID + 73}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 73)}, cancelState: model.StateDeleteOnly},
{act: model.ActionDropIndexes, jobIDs: []int64{firstID + 74}, cancelRetErrs: []error{admin.ErrCannotCancelDDLJob.GenWithStackByArgs(firstID + 74)}, cancelState: model.StateWriteReorganization},
// for alter db placement
{act: model.ActionModifySchemaDefaultPlacement, jobIDs: []int64{firstID + 75}, cancelRetErrs: noErrs, cancelState: model.StateNone},
{act: model.ActionModifySchemaDefaultPlacement, jobIDs: []int64{firstID + 76}, cancelRetErrs: []error{admin.ErrCancelFinishedDDLJob.GenWithStackByArgs(firstID + 76)}, cancelState: model.StatePublic},
}
return tests
}
func (s *testDDLSerialSuite) checkDropIdx(c *C, d *ddl, schemaID int64, tableID int64, idxName string, success bool) {
checkIdxExist(c, d, schemaID, tableID, idxName, !success)
}
func (s *testDDLSerialSuite) checkAddIdx(c *C, d *ddl, schemaID int64, tableID int64, idxName string, success bool) {
checkIdxExist(c, d, schemaID, tableID, idxName, success)
}
func checkIdxExist(c *C, d *ddl, schemaID int64, tableID int64, idxName string, expectedExist bool) {
changedTable := testGetTable(c, d, schemaID, tableID)
var found bool
for _, idxInfo := range changedTable.Meta().Indices {
if idxInfo.Name.O == idxName {
found = true
break
}
}
c.Assert(found, Equals, expectedExist)
}
func (s *testDDLSerialSuite) checkAddColumns(c *C, d *ddl, schemaID int64, tableID int64, colNames []string, success bool) {
changedTable := testGetTable(c, d, schemaID, tableID)
found := !checkColumnsNotFound(changedTable, colNames)
c.Assert(found, Equals, success)
}
func (s *testDDLSerialSuite) checkCancelDropColumns(c *C, d *ddl, schemaID int64, tableID int64, colNames []string, success bool) {
changedTable := testGetTable(c, d, schemaID, tableID)
notFound := checkColumnsNotFound(changedTable, colNames)
c.Assert(notFound, Equals, success)
}
func checkColumnsNotFound(t table.Table, colNames []string) bool {
notFound := true
for _, colName := range colNames {
for _, colInfo := range t.Meta().Columns {
if colInfo.Name.O == colName {
notFound = false
}
}
}
return notFound
}
func checkIdxVisibility(changedTable table.Table, idxName string, expected bool) bool {
for _, idxInfo := range changedTable.Meta().Indices {
if idxInfo.Name.O == idxName && idxInfo.Invisible == expected {
return true
}
}
return false
}
func (s *testDDLSerialSuite) TestCancelJob(c *C) {
store := testCreateStore(c, "test_cancel_job")
defer func() {
err := store.Close()
c.Assert(err, IsNil)
}()
d, err := testNewDDLAndStart(
context.Background(),
WithStore(store),
WithLease(testLease),
)
c.Assert(err, IsNil)
defer func() {
err := d.Stop()
c.Assert(err, IsNil)
}()
dbInfo, err := testSchemaInfo(d, "test_cancel_job")
c.Assert(err, IsNil)
testCreateSchema(c, testNewContext(d), d, dbInfo)
// create a partition table.
partitionTblInfo := testTableInfoWithPartition(c, d, "t_partition", 5)
// Skip using sessPool. Make sure adding primary key can be successful.
partitionTblInfo.Columns[0].Flag |= mysql.NotNullFlag
// create table t (c1 int, c2 int, c3 int, c4 int, c5 int);
tblInfo, err := testTableInfo(d, "t", 5)
c.Assert(err, IsNil)
ctx := testNewContext(d)
err = ctx.NewTxn(context.Background())
c.Assert(err, IsNil)
err = ctx.GetSessionVars().SetSystemVar("tidb_enable_exchange_partition", "1")
c.Assert(err, IsNil)
defer func() {
err := ctx.GetSessionVars().SetSystemVar("tidb_enable_exchange_partition", "0")
c.Assert(err, IsNil)
}()
testCreateTable(c, ctx, d, dbInfo, partitionTblInfo)
tableAutoID := int64(100)
shardRowIDBits := uint64(5)
tblInfo.AutoIncID = tableAutoID
tblInfo.ShardRowIDBits = shardRowIDBits
job := testCreateTable(c, ctx, d, dbInfo, tblInfo)
// insert t values (1, 2, 3, 4, 5);
originTable := testGetTable(c, d, dbInfo.ID, tblInfo.ID)
row := types.MakeDatums(1, 2, 3, 4, 5)
_, err = originTable.AddRecord(ctx, row)
c.Assert(err, IsNil)
txn, err := ctx.Txn(true)
c.Assert(err, IsNil)
err = txn.Commit(context.Background())
c.Assert(err, IsNil)
tc := &TestDDLCallback{}
// set up hook
firstJobID := job.ID
tests := buildCancelJobTests(firstJobID)
var checkErr error
var mu sync.Mutex
var test *testCancelJob
updateTest := func(t *testCancelJob) {
mu.Lock()
test = t
mu.Unlock()
}
hookCancelFunc := func(job *model.Job) {
if job.State == model.JobStateSynced || job.State == model.JobStateCancelled || job.State == model.JobStateCancelling {
return
}
// This hook only valid for the related test job.
// This is use to avoid parallel test fail.
mu.Lock()
if len(test.jobIDs) > 0 && test.jobIDs[0] != job.ID {
mu.Unlock()
return
}
mu.Unlock()
if checkErr != nil {
return
}
hookCtx := mock.NewContext()
hookCtx.Store = store
err1 := hookCtx.NewTxn(context.Background())
if err1 != nil {
checkErr = errors.Trace(err1)
return
}
txn, err1 = hookCtx.Txn(true)
if err1 != nil {
checkErr = errors.Trace(err1)
return
}
mu.Lock()
checkErr = checkCancelState(txn, job, test)
mu.Unlock()
if checkErr != nil {
return
}
err1 = txn.Commit(context.Background())
if err1 != nil {
checkErr = errors.Trace(err1)
return
}
}
tc.onJobUpdated = hookCancelFunc
tc.onJobRunBefore = hookCancelFunc
d.SetHook(tc)
// for adding index
updateTest(&tests[0])
idxOrigName := "idx"
validArgs := []interface{}{false, model.NewCIStr(idxOrigName),
[]*ast.IndexPartSpecification{{
Column: &ast.ColumnName{Name: model.NewCIStr("c1")},
Length: -1,
}}, nil}
// When the job satisfies this test case, the option will be rollback, so the job's schema state is none.
cancelState := model.StateNone
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo.ID, tblInfo.ID, model.ActionAddIndex, validArgs, &cancelState)
c.Check(checkErr, IsNil)
s.checkAddIdx(c, d, dbInfo.ID, tblInfo.ID, idxOrigName, false)
updateTest(&tests[1])
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo.ID, tblInfo.ID, model.ActionAddIndex, validArgs, &cancelState)
c.Check(checkErr, IsNil)
s.checkAddIdx(c, d, dbInfo.ID, tblInfo.ID, idxOrigName, false)
updateTest(&tests[2])
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo.ID, tblInfo.ID, model.ActionAddIndex, validArgs, &cancelState)
c.Check(checkErr, IsNil)
s.checkAddIdx(c, d, dbInfo.ID, tblInfo.ID, idxOrigName, false)
updateTest(&tests[3])
testCreateIndex(c, ctx, d, dbInfo, tblInfo, false, "idx", "c2")
c.Check(checkErr, IsNil)
txn, err = ctx.Txn(true)
c.Assert(err, IsNil)
c.Assert(txn.Commit(context.Background()), IsNil)
s.checkAddIdx(c, d, dbInfo.ID, tblInfo.ID, idxOrigName, true)
// for add column
updateTest(&tests[4])
addingColName := "colA"
newColumnDef := &ast.ColumnDef{
Name: &ast.ColumnName{Name: model.NewCIStr(addingColName)},
Tp: &types.FieldType{Tp: mysql.TypeLonglong},
Options: []*ast.ColumnOption{},
}
chs, coll := charset.GetDefaultCharsetAndCollate()
col, _, err := buildColumnAndConstraint(ctx, 2, newColumnDef, nil, chs, coll)
c.Assert(err, IsNil)
addColumnArgs := []interface{}{col, &ast.ColumnPosition{Tp: ast.ColumnPositionNone}, 0}
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo.ID, tblInfo.ID, model.ActionAddColumn, addColumnArgs, &cancelState)
c.Check(checkErr, IsNil)
s.checkAddColumns(c, d, dbInfo.ID, tblInfo.ID, []string{addingColName}, false)
updateTest(&tests[5])
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo.ID, tblInfo.ID, model.ActionAddColumn, addColumnArgs, &cancelState)
c.Check(checkErr, IsNil)
s.checkAddColumns(c, d, dbInfo.ID, tblInfo.ID, []string{addingColName}, false)
updateTest(&tests[6])
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo.ID, tblInfo.ID, model.ActionAddColumn, addColumnArgs, &cancelState)
c.Check(checkErr, IsNil)
s.checkAddColumns(c, d, dbInfo.ID, tblInfo.ID, []string{addingColName}, false)
updateTest(&tests[7])
testAddColumn(c, ctx, d, dbInfo, tblInfo, addColumnArgs)
c.Check(checkErr, IsNil)
s.checkAddColumns(c, d, dbInfo.ID, tblInfo.ID, []string{addingColName}, true)
// for create table
tblInfo1, err := testTableInfo(d, "t1", 2)
c.Assert(err, IsNil)
updateTest(&tests[8])
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo.ID, tblInfo1.ID, model.ActionCreateTable, []interface{}{tblInfo1}, &cancelState)
c.Check(checkErr, IsNil)
testCheckTableState(c, d, dbInfo, tblInfo1, model.StateNone)
// for create database
dbInfo1, err := testSchemaInfo(d, "test_cancel_job1")
c.Assert(err, IsNil)
updateTest(&tests[9])
doDDLJobErrWithSchemaState(ctx, d, c, dbInfo1.ID, 0, model.ActionCreateSchema, []interface{}{dbInfo1}, &cancelState)
c.Check(checkErr, IsNil)
testCheckSchemaState(c, d, dbInfo1, model.StateNone)