github.com/matrixorigin/matrixone@v1.2.0/pkg/common/chaos/chaos.go (about)

     1  // Copyright 2021 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package chaos
    16  
    17  import (
    18  	"database/sql"
    19  	"time"
    20  )
    21  
    22  // ChaosTester chaos tester
    23  type ChaosTester struct {
    24  	testers []tester
    25  }
    26  
    27  // NewChaosTester create chaos tester
    28  func NewChaosTester(cfg Config) *ChaosTester {
    29  	t := &ChaosTester{}
    30  	t.testers = append(t.testers, newRestartTester(cfg))
    31  	return t
    32  }
    33  
    34  func (t *ChaosTester) waitSystemBootStrapCompleted() {
    35  	for {
    36  		ok, err := t.doCheckBootStrapCompleted()
    37  		if err != nil || !ok {
    38  			time.Sleep(time.Second * 5)
    39  			continue
    40  		}
    41  		return
    42  	}
    43  }
    44  
    45  func (t *ChaosTester) doCheckBootStrapCompleted() (bool, error) {
    46  	db, err := sql.Open("mysql", "dump:111@tcp(127.0.0.1:6001)/mo_catalog")
    47  	defer func() {
    48  		_ = db.Close()
    49  	}()
    50  	if err != nil {
    51  		return false, err
    52  	}
    53  
    54  	res, err := db.Query("show tables")
    55  	if err != nil {
    56  		return false, err
    57  	}
    58  	defer func() {
    59  		_ = res.Close()
    60  	}()
    61  	if res.Err() != nil {
    62  		return false, res.Err()
    63  	}
    64  
    65  	var name string
    66  	for res.Next() {
    67  		if err := res.Scan(&name); err != nil {
    68  			return false, err
    69  		}
    70  		if name == "mo_account" {
    71  			return true, nil
    72  		}
    73  	}
    74  	return false, nil
    75  }
    76  
    77  func (t *ChaosTester) Start() error {
    78  	go func() {
    79  		t.waitSystemBootStrapCompleted()
    80  		for _, tester := range t.testers {
    81  			if err := tester.start(); err != nil {
    82  				panic(err)
    83  			}
    84  		}
    85  	}()
    86  	return nil
    87  }
    88  
    89  func (t *ChaosTester) Stop() error {
    90  	for _, tester := range t.testers {
    91  		if err := tester.stop(); err != nil {
    92  			return err
    93  		}
    94  	}
    95  	return nil
    96  }