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Fix(e2e): run a mysql client in kind to test graceful shutdown case (#…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| // Copyright 2024 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 main | ||
|
|
||
| import ( | ||
| "context" | ||
| "database/sql" | ||
| "errors" | ||
| "flag" | ||
| "fmt" | ||
| "sync" | ||
| "sync/atomic" | ||
| "time" | ||
|
|
||
| _ "github.com/go-sql-driver/mysql" | ||
| ) | ||
|
|
||
| var ( | ||
| host string | ||
| durationInMinutes int | ||
| maxConnections int | ||
| sleepIntervalSec int | ||
| longTxnSleepSec int | ||
| ) | ||
|
|
||
| //nolint:mnd // default values | ||
| func main() { | ||
| flag.StringVar(&host, "host", "", "host") | ||
| flag.IntVar(&durationInMinutes, "duration", 10, "duration in minutes") | ||
| flag.IntVar(&maxConnections, "max-connections", 30, "max connections") | ||
| flag.IntVar(&sleepIntervalSec, "sleep-interval", 1, "sleep interval in seconds") | ||
| flag.IntVar(&longTxnSleepSec, "long-txn-sleep", 10, "how many seconds to sleep to simulate a long transaction") | ||
| flag.Parse() | ||
|
|
||
| db, err := sql.Open("mysql", fmt.Sprintf("root:@(%s:4000)/test?charset=utf8mb4", host)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| if err = db.Ping(); err != nil { | ||
| panic(err) | ||
| } | ||
| defer db.Close() | ||
| db.SetConnMaxLifetime(time.Minute) | ||
| db.SetMaxIdleConns(maxConnections) | ||
| db.SetMaxOpenConns(maxConnections) | ||
|
|
||
| table := "test.e2e_test" | ||
| str := fmt.Sprintf("create table if not exists %s(id int primary key auto_increment, v int);", table) | ||
| _, err = db.Exec(str) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| var totalCount, failCount atomic.Uint64 | ||
| var wg sync.WaitGroup | ||
| clientCtx, cancel := context.WithTimeout(context.Background(), time.Duration(durationInMinutes)*time.Minute) | ||
| defer cancel() | ||
|
|
||
| for i := 1; i <= maxConnections; i++ { | ||
| wg.Add(1) | ||
| go func(id int) { | ||
| defer wg.Done() | ||
| for { | ||
| select { | ||
| case <-clientCtx.Done(): | ||
| return | ||
| default: | ||
| err := executeSimpleTransaction(db, id, table) | ||
| totalCount.Add(1) | ||
| if err != nil { | ||
| fmt.Printf("[%d-%s] failed to execute simple transaction(long: %v): %v\n", id, time.Now().String(), id%3 == 0, err) | ||
| failCount.Add(1) | ||
| } | ||
| time.Sleep(time.Duration(sleepIntervalSec) * time.Second) | ||
| } | ||
| } | ||
| }(i) | ||
| } | ||
| wg.Wait() | ||
| fmt.Printf("total count: %d, fail count: %d\n", totalCount.Load(), failCount.Load()) | ||
| if failCount.Load() > 0 { | ||
| panic("there are failed transactions") | ||
| } | ||
| } | ||
|
|
||
| // ExecuteSimpleTransaction performs a transaction to insert or update the given id in the specified table. | ||
| func executeSimpleTransaction(db *sql.DB, id int, table string) error { | ||
| tx, err := db.Begin() | ||
| if err != nil { | ||
| return fmt.Errorf("failed to begin txn: %w", err) | ||
| } | ||
| defer func() { | ||
| if r := recover(); r != nil { | ||
| _ = tx.Rollback() | ||
| } | ||
| }() | ||
|
|
||
| // Prepare SQL statement to replace or insert a record | ||
| //nolint:gosec // only for testing | ||
| str := fmt.Sprintf("replace into %s(id, v) values(?, ?);", table) | ||
| if _, err = tx.Exec(str, id, id); err != nil { | ||
| _ = tx.Rollback() | ||
| return fmt.Errorf("failed to exec statement: %w", err) | ||
| } | ||
|
|
||
| // Simulate a different operation by updating the value | ||
| if _, err = tx.Exec(fmt.Sprintf("update %s set v = ? where id = ?;", table), id*2, id); err != nil { | ||
| _ = tx.Rollback() | ||
| return fmt.Errorf("failed to exec update statement: %w", err) | ||
| } | ||
|
|
||
| // Simulate a long transaction by sleeping for 10 seconds | ||
| if id%3 == 0 { | ||
| time.Sleep(time.Duration(longTxnSleepSec) * time.Second) | ||
| } | ||
|
|
||
| // Commit the transaction | ||
| if err = tx.Commit(); err != nil && !errors.Is(err, sql.ErrTxDone) { | ||
| return fmt.Errorf("failed to commit txn: %w", err) | ||
| } | ||
| return nil | ||
| } |
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