cubefs/cmd/cmd.go
2020-03-03 15:04:09 +01:00

294 lines
7.0 KiB
Go

// Copyright 2018 The Chubao Authors.
//
// 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 (
"flag"
"fmt"
syslog "log"
"net/http"
_ "net/http/pprof"
"os"
"os/signal"
"path"
"path/filepath"
"runtime"
"strings"
"syscall"
"github.com/chubaofs/chubaofs/objectnode"
"github.com/jacobsa/daemonize"
"github.com/chubaofs/chubaofs/authnode"
"github.com/chubaofs/chubaofs/cmd/common"
"github.com/chubaofs/chubaofs/datanode"
"github.com/chubaofs/chubaofs/master"
"github.com/chubaofs/chubaofs/metanode"
"github.com/chubaofs/chubaofs/util/config"
"github.com/chubaofs/chubaofs/util/log"
"github.com/chubaofs/chubaofs/util/ump"
)
var (
CommitID string
BranchName string
BuildTime string
)
const (
ConfigKeyRole = "role"
ConfigKeyLogDir = "logDir"
ConfigKeyLogLevel = "logLevel"
ConfigKeyProfPort = "prof"
ConfigKeyWarnLogDir = "warnLogDir"
)
const (
RoleMaster = "master"
RoleMeta = "metanode"
RoleData = "datanode"
RoleAuth = "authnode"
RoleObject = "objectnode"
)
const (
ModuleMaster = "master"
ModuleMeta = "metaNode"
ModuleData = "dataNode"
ModuleAuth = "authNode"
ModuleObject = "objectNode"
)
const (
LoggerOutput = "output.log"
)
var (
configFile = flag.String("c", "", "config file path")
configVersion = flag.Bool("v", false, "show version")
configForeground = flag.Bool("f", false, "run foreground")
)
func interceptSignal(s common.Server) {
sigC := make(chan os.Signal, 1)
signal.Notify(sigC, syscall.SIGINT, syscall.SIGTERM)
syslog.Println("action[interceptSignal] register system signal.")
go func() {
sig := <-sigC
syslog.Printf("action[interceptSignal] received signal: %s.", sig.String())
s.Shutdown()
}()
}
func modifyOpenFiles() (err error) {
var rLimit syscall.Rlimit
err = syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit)
if err != nil {
return fmt.Errorf("Error Getting Rlimit %v", err.Error())
}
syslog.Println(rLimit)
rLimit.Max = 1024000
rLimit.Cur = 1024000
err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rLimit)
if err != nil {
return fmt.Errorf("Error Setting Rlimit %v", err.Error())
}
err = syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit)
if err != nil {
return fmt.Errorf("Error Getting Rlimit %v", err.Error())
}
syslog.Println("Rlimit Final", rLimit)
return
}
func main() {
flag.Parse()
Version := fmt.Sprintf("ChubaoFS Server\nBranch: %s\nCommit: %s\nBuild: %s %s %s %s\n", BranchName, CommitID, runtime.Version(), runtime.GOOS, runtime.GOARCH, BuildTime)
if *configVersion {
fmt.Printf("%v", Version)
os.Exit(0)
}
/*
* LoadConfigFile should be checked before start daemon, since it will
* call os.Exit() w/o notifying the parent process.
*/
cfg, err := config.LoadConfigFile(*configFile)
if err != nil {
daemonize.SignalOutcome(err)
os.Exit(1)
}
if !*configForeground {
if err := startDaemon(); err != nil {
fmt.Printf("Server start failed: %v\n", err)
os.Exit(1)
}
os.Exit(0)
}
/*
* We are in daemon from here.
* Must notify the parent process through SignalOutcome anyway.
*/
role := cfg.GetString(ConfigKeyRole)
logDir := cfg.GetString(ConfigKeyLogDir)
logLevel := cfg.GetString(ConfigKeyLogLevel)
profPort := cfg.GetString(ConfigKeyProfPort)
umpDatadir := cfg.GetString(ConfigKeyWarnLogDir)
// Init server instance with specified role configuration.
var (
server common.Server
module string
)
switch role {
case RoleMeta:
server = metanode.NewServer()
module = ModuleMeta
case RoleMaster:
server = master.NewServer()
module = ModuleMaster
case RoleData:
server = datanode.NewServer()
module = ModuleData
case RoleAuth:
server = authnode.NewServer()
module = ModuleAuth
case RoleObject:
server = objectnode.NewServer()
module = ModuleObject
default:
daemonize.SignalOutcome(fmt.Errorf("Fatal: role mismatch: %v", role))
os.Exit(1)
}
// Init logging
var (
level log.Level
)
switch strings.ToLower(logLevel) {
case "debug":
level = log.DebugLevel
case "info":
level = log.InfoLevel
case "warn":
level = log.WarnLevel
case "error":
level = log.ErrorLevel
default:
level = log.ErrorLevel
}
_, err = log.InitLog(logDir, module, level, nil)
if err != nil {
daemonize.SignalOutcome(fmt.Errorf("Fatal: failed to init log - %v", err))
os.Exit(1)
}
defer log.LogFlush()
// Init output file
outputFilePath := path.Join(logDir, module, LoggerOutput)
outputFile, err := os.OpenFile(outputFilePath, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666)
if err != nil {
daemonize.SignalOutcome(err)
os.Exit(1)
}
defer func() {
outputFile.Sync()
outputFile.Close()
}()
syslog.SetOutput(outputFile)
if err = syscall.Dup3(int(outputFile.Fd()), int(os.Stderr.Fd()), 0); err != nil {
daemonize.SignalOutcome(err)
os.Exit(1)
}
syslog.Printf("Hello, ChubaoFS Storage\n%s\n", Version)
err = modifyOpenFiles()
if err != nil {
daemonize.SignalOutcome(err)
os.Exit(1)
}
//for multi-cpu scheduling
runtime.GOMAXPROCS(runtime.NumCPU())
if err = ump.InitUmp(role, umpDatadir); err != nil {
log.LogFlush()
daemonize.SignalOutcome(fmt.Errorf("Fatal: init warnLogDir fail:%v ", err))
os.Exit(1)
}
if profPort != "" {
go func() {
http.HandleFunc(log.SetLogLevelPath, log.SetLogLevel)
e := http.ListenAndServe(fmt.Sprintf(":%v", profPort), nil)
if e != nil {
log.LogFlush()
daemonize.SignalOutcome(fmt.Errorf("cannot listen pprof %v err %v", profPort, err))
os.Exit(1)
}
}()
}
interceptSignal(server)
err = server.Start(cfg)
if err != nil {
log.LogFlush()
syslog.Printf("Fatal: failed to start the ChubaoFS %v daemon err %v - ", role, err)
daemonize.SignalOutcome(fmt.Errorf("Fatal: failed to start the ChubaoFS %v daemon err %v - ", role, err))
os.Exit(1)
}
daemonize.SignalOutcome(nil)
// Block main goroutine until server shutdown.
server.Sync()
os.Exit(0)
}
func startDaemon() error {
cmdPath, err := os.Executable()
if err != nil {
return fmt.Errorf("startDaemon failed: cannot get absolute command path, err(%v)", err)
}
configPath, err := filepath.Abs(*configFile)
if err != nil {
return fmt.Errorf("startDaemon failed: cannot get absolute command path of config file(%v) , err(%v)", *configFile, err)
}
args := []string{"-f"}
args = append(args, "-c")
args = append(args, configPath)
env := []string{
fmt.Sprintf("PATH=%s", os.Getenv("PATH")),
}
err = daemonize.Run(cmdPath, args, env, os.Stdout)
if err != nil {
return fmt.Errorf("startDaemon failed: daemon start failed, cmd(%v) args(%v) env(%v) err(%v)\n", cmdPath, args, env, err)
}
return nil
}