/
source.go
94 lines (84 loc) · 2.41 KB
/
source.go
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// Copyright 2020 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"fmt"
"os"
"path/filepath"
"strings"
"time"
config2 "github.com/pingcap/tiflow/dm/config"
"github.com/pingcap/tiflow/dm/pb"
)
// createSources does `operate-source create` operation for two sources.
// NOTE: we put source config files in `conf` directory.
func createSources(ctx context.Context, cli pb.MasterClient, cfg *config) error {
s1Path := filepath.Join(cfg.ConfigDir, "source1.yaml")
s2Path := filepath.Join(cfg.ConfigDir, "source2.yaml")
s3Path := filepath.Join(cfg.ConfigDir, "source3.yaml")
s1Content, err := os.ReadFile(s1Path)
if err != nil {
return err
}
s2Content, err := os.ReadFile(s2Path)
if err != nil {
return err
}
s3Content, err := os.ReadFile(s3Path)
if err != nil {
return err
}
cfg1, err := config2.SourceCfgFromYaml(string(s1Content))
if err != nil {
return err
}
cfg2, err := config2.SourceCfgFromYaml(string(s2Content))
if err != nil {
return err
}
cfg3, err := config2.SourceCfgFromYaml(string(s3Content))
if err != nil {
return err
}
// replace DB config.
cfg1.From = cfg.Source1
cfg2.From = cfg.Source2
cfg3.From = cfg.Source3
// reduce backoffmax for autoresume
cfg1.Checker.BackoffMax = config2.Duration{Duration: 5 * time.Second}
cfg2.Checker.BackoffMax = config2.Duration{Duration: 5 * time.Second}
cfg3.Checker.BackoffMax = config2.Duration{Duration: 5 * time.Second}
s1Content2, err := cfg1.Yaml()
if err != nil {
return err
}
s2Content2, err := cfg2.Yaml()
if err != nil {
return err
}
s3Content3, err := cfg3.Yaml()
if err != nil {
return err
}
resp, err := cli.OperateSource(ctx, &pb.OperateSourceRequest{
Op: pb.SourceOp_StartSource,
Config: []string{s1Content2, s2Content2, s3Content3},
})
if err != nil {
return err
} else if !resp.Result && !strings.Contains(resp.Msg, "already exists") { // imprecise match
return fmt.Errorf("fail to create source: %s", resp.Msg)
}
return nil
}