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ttl: use optimistic transaction with 0 retry limit for ttl (#39924)
close #39923
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| // Copyright 2022 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 ttlworker_test | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "sync" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/pingcap/tidb/parser/ast" | ||
| "github.com/pingcap/tidb/parser/model" | ||
| dbsession "github.com/pingcap/tidb/session" | ||
| "github.com/pingcap/tidb/sessionctx/variable" | ||
| "github.com/pingcap/tidb/testkit" | ||
| "github.com/pingcap/tidb/ttl/cache" | ||
| "github.com/pingcap/tidb/ttl/session" | ||
| "github.com/pingcap/tidb/ttl/ttlworker" | ||
| "github.com/pingcap/tidb/util/logutil" | ||
| "github.com/stretchr/testify/require" | ||
| "go.uber.org/atomic" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
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| func TestParallelLockNewJob(t *testing.T) { | ||
| store := testkit.CreateMockStore(t) | ||
|
|
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| sessionFactory := func() session.Session { | ||
| dbSession, err := dbsession.CreateSession4Test(store) | ||
| require.NoError(t, err) | ||
| se := session.NewSession(dbSession, dbSession, nil) | ||
|
|
||
| _, err = se.ExecuteSQL(context.Background(), "ROLLBACK") | ||
| require.NoError(t, err) | ||
| _, err = se.ExecuteSQL(context.Background(), "set tidb_retry_limit=0") | ||
| require.NoError(t, err) | ||
|
|
||
| return se | ||
| } | ||
|
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| storedTTLJobRunInterval := variable.TTLJobRunInterval.Load() | ||
| variable.TTLJobRunInterval.Store(0) | ||
| defer func() { | ||
| variable.TTLJobRunInterval.Store(storedTTLJobRunInterval) | ||
| }() | ||
|
|
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| testTable := &cache.PhysicalTable{ID: 2, TableInfo: &model.TableInfo{ID: 1, TTLInfo: &model.TTLInfo{IntervalExprStr: "1", IntervalTimeUnit: int(ast.TimeUnitDay)}}} | ||
| // simply lock a new job | ||
| m := ttlworker.NewJobManager("test-id", nil, store) | ||
| se := sessionFactory() | ||
| job, err := m.LockNewJob(context.Background(), se, testTable, time.Now()) | ||
| require.NoError(t, err) | ||
| job.Finish(se, time.Now()) | ||
|
|
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| // lock one table in parallel, only one of them should lock successfully | ||
| testTimes := 100 | ||
| concurrency := 5 | ||
| for i := 0; i < testTimes; i++ { | ||
| successCounter := atomic.NewUint64(0) | ||
| successJob := &ttlworker.TTLJob{} | ||
|
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| wg := sync.WaitGroup{} | ||
| for j := 0; j < concurrency; j++ { | ||
| jobManagerID := fmt.Sprintf("test-ttl-manager-%d", j) | ||
| wg.Add(1) | ||
| go func() { | ||
| m := ttlworker.NewJobManager(jobManagerID, nil, store) | ||
|
|
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| se := sessionFactory() | ||
| job, err := m.LockNewJob(context.Background(), se, testTable, time.Now()) | ||
| if err == nil { | ||
| successCounter.Add(1) | ||
| successJob = job | ||
| } else { | ||
| logutil.BgLogger().Error("lock new job with error", zap.Error(err)) | ||
| } | ||
| wg.Done() | ||
| }() | ||
| } | ||
| wg.Wait() | ||
|
|
||
| require.Equal(t, uint64(1), successCounter.Load()) | ||
| successJob.Finish(se, time.Now()) | ||
| } | ||
| } |
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