github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/dm/chaos/cases/cases.go (about)

     1  // Copyright 2020 PingCAP, Inc.
     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  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package main
    15  
    16  import (
    17  	"context"
    18  	"path/filepath"
    19  
    20  	"github.com/pingcap/tiflow/dm/config/dbconfig"
    21  	"github.com/pingcap/tiflow/dm/pb"
    22  	"github.com/pingcap/tiflow/dm/pkg/utils"
    23  	"golang.org/x/sync/errgroup"
    24  )
    25  
    26  var (
    27  	// NOTE: items in `doSchemas` should be specified in the corresponding task files (`filenames`).
    28  	// TODO: can not support optimistic shard DDL now because go-sqlsmith will generated some statements like
    29  	//   `ALTER TABLE `db_optimistic`.`dxeyydwb` ADD COLUMN (`zuhxfgsce` INT(18) NOT NULL)` which has NOT NULL column without DEFAULT value.
    30  	filenames = []string{"task-single.yaml", "task-pessimistic.yaml", "task-optimistic.yaml"}
    31  	doSchemas = []string{"db_single", "db_pessimistic", "db_optimistic"}
    32  )
    33  
    34  // runCases runs test cases.
    35  func runCases(ctx context.Context, cli pb.MasterClient, confDir string,
    36  	targetCfg dbconfig.DBConfig, sourcesCfg ...dbconfig.DBConfig,
    37  ) error {
    38  	eg, ctx2 := errgroup.WithContext(ctx)
    39  	for i := range filenames {
    40  		taskFile := filepath.Join(confDir, filenames[i])
    41  		schema := doSchemas[i]
    42  		eg.Go(func() error {
    43  			t, err := newTask(ctx2, cli, taskFile, schema, targetCfg, sourcesCfg...)
    44  			if err != nil {
    45  				return err
    46  			}
    47  			err = t.run()
    48  			if utils.IsContextCanceledError(err) {
    49  				err = nil // clear err
    50  			}
    51  			return err
    52  		})
    53  	}
    54  	return eg.Wait()
    55  }