103 lines
3.3 KiB
Go
103 lines
3.3 KiB
Go
// Copyright 2021 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 ddl_test
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import (
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"context"
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"strconv"
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. "github.com/pingcap/check"
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errors2 "github.com/pingcap/errors"
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"github.com/pingcap/failpoint"
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"github.com/pingcap/tidb/ddl"
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"github.com/pingcap/tidb/kv"
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"github.com/pingcap/tidb/meta"
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"github.com/pingcap/tidb/parser/model"
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"github.com/pingcap/tidb/util/sqlexec"
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"github.com/pingcap/tidb/util/testkit"
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)
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var _ = SerialSuites(&testRollingBackSuite{&testDBSuite{}})
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type testRollingBackSuite struct{ *testDBSuite }
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// TestCancelJobMeetError is used to test canceling ddl job failure when convert ddl job to a rollingback job.
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func (s *testRollingBackSuite) TestCancelAddIndexJobError(c *C) {
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tk := testkit.NewTestKit(c, s.store)
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tk1 := testkit.NewTestKit(c, s.store)
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tk.MustExec("use test")
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tk1.MustExec("use test")
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tk.MustExec("create table t_cancel_add_index (a int)")
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tk.MustExec("insert into t_cancel_add_index values(1),(2),(3)")
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tk.MustExec("set @@global.tidb_ddl_error_count_limit=3")
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c.Assert(failpoint.Enable("github.com/pingcap/tidb/ddl/mockConvertAddIdxJob2RollbackJobError", `return(true)`), IsNil)
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defer func() {
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c.Assert(failpoint.Disable("github.com/pingcap/tidb/ddl/mockConvertAddIdxJob2RollbackJobError"), IsNil)
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}()
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tbl := testGetTableByName(c, tk.Se, "test", "t_cancel_add_index")
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c.Assert(tbl, NotNil)
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d := s.dom.DDL()
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hook := &ddl.TestDDLCallback{Do: s.dom}
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var (
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checkErr error
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jobID int64
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res sqlexec.RecordSet
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)
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hook.OnJobUpdatedExported = func(job *model.Job) {
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if job.TableID != tbl.Meta().ID {
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return
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}
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if job.Type != model.ActionAddIndex {
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return
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}
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if job.SchemaState == model.StateDeleteOnly {
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jobID = job.ID
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res, checkErr = tk1.Exec("admin cancel ddl jobs " + strconv.Itoa(int(job.ID)))
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// drain the result set here, otherwise the cancel action won't take effect immediately.
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chk := res.NewChunk(nil)
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if err := res.Next(context.Background(), chk); err != nil {
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checkErr = err
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return
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}
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if err := res.Close(); err != nil {
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checkErr = err
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}
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}
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}
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d.(ddl.DDLForTest).SetHook(hook)
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// This will hang on stateDeleteOnly, and the job will be canceled.
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_, err := tk.Exec("alter table t_cancel_add_index add index idx(a)")
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c.Assert(err, NotNil)
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c.Assert(checkErr, IsNil)
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c.Assert(err.Error(), Equals, "[ddl:-1]rollback DDL job error count exceed the limit 3, cancelled it now")
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// Verification of the history job state.
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var job *model.Job
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err = kv.RunInNewTxn(context.Background(), s.store, false, func(ctx context.Context, txn kv.Transaction) error {
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t := meta.NewMeta(txn)
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var err1 error
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job, err1 = t.GetHistoryDDLJob(jobID)
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return errors2.Trace(err1)
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})
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c.Assert(err, IsNil)
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c.Assert(job.ErrorCount, Equals, int64(4))
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c.Assert(job.Error.Error(), Equals, "[ddl:-1]rollback DDL job error count exceed the limit 3, cancelled it now")
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}
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