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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 instance
import (
"context"
"fmt"
"path/filepath"
"strconv"
"strings"
"github.com/pingcap/tiup/pkg/utils"
)
// TiDBInstance represent a running tidb-server
type TiDBInstance struct {
instance
shOpt SharedOptions
pds []*PDInstance
Process
tiproxyCertDir string
enableBinlog bool
}
// NewTiDBInstance return a TiDBInstance
func NewTiDBInstance(shOpt SharedOptions, binPath string, dir, host, configPath string, id, port int, pds []*PDInstance, tiproxyCertDir string, enableBinlog bool) *TiDBInstance {
if port <= 0 {
port = 4000
}
return &TiDBInstance{
shOpt: shOpt,
instance: instance{
BinPath: binPath,
ID: id,
Dir: dir,
Host: host,
Port: utils.MustGetFreePort(host, port, shOpt.PortOffset),
StatusPort: utils.MustGetFreePort("0.0.0.0", 10080, shOpt.PortOffset),
ConfigPath: configPath,
},
tiproxyCertDir: tiproxyCertDir,
pds: pds,
enableBinlog: enableBinlog,
}
}
// Start calls set inst.cmd and Start
func (inst *TiDBInstance) Start(ctx context.Context) error {
configPath := filepath.Join(inst.Dir, "tidb.toml")
if err := prepareConfig(
configPath,
inst.ConfigPath,
inst.getConfig(),
); err != nil {
return err
}
endpoints := pdEndpoints(inst.pds, false)
args := []string{
"-P", strconv.Itoa(inst.Port),
"--store=tikv",
fmt.Sprintf("--host=%s", inst.Host),
fmt.Sprintf("--status=%d", inst.StatusPort),
fmt.Sprintf("--path=%s", strings.Join(endpoints, ",")),
fmt.Sprintf("--log-file=%s", filepath.Join(inst.Dir, "tidb.log")),
fmt.Sprintf("--config=%s", configPath),
}
if inst.enableBinlog {
args = append(args, "--enable-binlog=true")
}
inst.Process = &process{cmd: PrepareCommand(ctx, inst.BinPath, args, nil, inst.Dir)}
logIfErr(inst.Process.SetOutputFile(inst.LogFile()))
return inst.Process.Start()
}
// Component return the component name.
func (inst *TiDBInstance) Component() string {
return "tidb"
}
// LogFile return the log file name.
func (inst *TiDBInstance) LogFile() string {
return filepath.Join(inst.Dir, "tidb.log")
}
// Addr return the listen address of TiDB
func (inst *TiDBInstance) Addr() string {
return utils.JoinHostPort(AdvertiseHost(inst.Host), inst.Port)
}
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