Example #1
0
// Run determines and runs the command specified by the CLI args.
func (m *Main) Run(args ...string) error {
	name, args := ParseCommandName(args)

	// Extract name from args.
	switch name {
	case "", "run":
		cmd := run.NewCommand()

		// Tell the server the build details.
		cmd.Version = version
		cmd.Commit = commit

		if err := cmd.Run(args...); err != nil {
			return fmt.Errorf("run: %s", err)
		}

		// Wait indefinitely.
		<-(chan struct{})(nil)

	case "backup":
		name := backup.NewCommand()
		if err := name.Run(args...); err != nil {
			return fmt.Errorf("backup: %s", err)
		}
	case "restore":
		name := restore.NewCommand()
		if err := name.Run(args...); err != nil {
			return fmt.Errorf("restore: %s", err)
		}
	case "config":
		if err := run.NewPrintConfigCommand().Run(args...); err != nil {
			return fmt.Errorf("config: %s", err)
		}
	case "version":
		if err := NewVersionCommand().Run(args...); err != nil {
			return fmt.Errorf("version: %s", err)
		}
	case "help":
		if err := help.NewCommand().Run(args...); err != nil {
			return fmt.Errorf("help: %s", err)
		}
	default:
		return fmt.Errorf(`unknown command "%s"`+"\n"+`Run 'influxd help' for usage`+"\n\n", name)
	}

	return nil
}
func TestServer_BackupAndRestore(t *testing.T) {
	config := NewConfig()
	config.Data.Engine = "tsm1"
	config.Data.Dir, _ = ioutil.TempDir("", "data_backup")
	config.Meta.Dir, _ = ioutil.TempDir("", "meta_backup")
	config.Meta.BindAddress = freePort()

	backupDir, _ := ioutil.TempDir("", "backup")
	defer os.RemoveAll(backupDir)

	db := "mydb"
	rp := "forever"
	expected := `{"results":[{"series":[{"name":"myseries","columns":["time","host","value"],"values":[["1970-01-01T00:00:00.001Z","A",23]]}]}]}`

	// set the cache snapshot size low so that a single point will cause TSM file creation
	config.Data.CacheSnapshotMemorySize = 1

	func() {
		s := OpenServer(config, "")
		defer s.Close()

		if err := s.CreateDatabaseAndRetentionPolicy(db, newRetentionPolicyInfo(rp, 1, 0)); err != nil {
			t.Fatal(err)
		}
		if err := s.MetaStore.SetDefaultRetentionPolicy(db, rp); err != nil {
			t.Fatal(err)
		}

		s.MustWrite(db, rp, "myseries,host=A value=23 1000000", nil)

		// wait for the snapshot to write
		time.Sleep(time.Second)

		res, err := s.Query(`select * from "mydb"."forever"."myseries"`)
		if err != nil {
			t.Fatalf("error querying: %s", err.Error())
		}
		if res != expected {
			t.Fatalf("query results wrong:\n\texp: %s\n\tgot: %s", expected, res)
		}

		// now backup
		cmd := backup.NewCommand()
		if err := cmd.Run("-host", config.Meta.BindAddress, "-database", "mydb", backupDir); err != nil {
			t.Fatalf("error backing up: %s", err.Error())
		}
	}()

	if _, err := os.Stat(config.Meta.Dir); err == nil || !os.IsNotExist(err) {
		t.Fatalf("meta dir should be deleted")
	}

	if _, err := os.Stat(config.Data.Dir); err == nil || !os.IsNotExist(err) {
		t.Fatalf("meta dir should be deleted")
	}

	// restore
	cmd := restore.NewCommand()
	cmd.MetaConfig.BindAddress = config.Meta.BindAddress

	if err := cmd.Run("-metadir", config.Meta.Dir, "-datadir", config.Data.Dir, "-database", "mydb", backupDir); err != nil {
		t.Fatalf("error restoring: %s", err.Error())
	}

	// now open it up and verify we're good
	s := OpenServer(config, "")
	defer s.Close()

	res, err := s.Query(`select * from "mydb"."forever"."myseries"`)
	if err != nil {
		t.Fatalf("error querying: %s", err.Error())
	}
	if res != expected {
		t.Fatalf("query results wrong:\n\texp: %s\n\tgot: %s", expected, res)
	}
}
Example #3
0
// Run determines and runs the command specified by the CLI args.
func (m *Main) Run(args ...string) error {
	name, args := ParseCommandName(args)

	// Extract name from args.
	switch name {
	case "", "run":
		cmd := run.NewCommand()

		// Tell the server the build details.
		cmd.Version = version
		cmd.Commit = commit
		cmd.Branch = branch

		if err := cmd.Run(args...); err != nil {
			return fmt.Errorf("run: %s", err)
		}

		signalCh := make(chan os.Signal, 1)
		signal.Notify(signalCh, os.Interrupt, syscall.SIGTERM)
		m.Logger.Println("Listening for signals")

		// Block until one of the signals above is received
		select {
		case <-signalCh:
			m.Logger.Println("Signal received, initializing clean shutdown...")
			go func() {
				cmd.Close()
			}()
		}

		// Block again until another signal is received, a shutdown timeout elapses,
		// or the Command is gracefully closed
		m.Logger.Println("Waiting for clean shutdown...")
		select {
		case <-signalCh:
			m.Logger.Println("second signal received, initializing hard shutdown")
		case <-time.After(time.Second * 30):
			m.Logger.Println("time limit reached, initializing hard shutdown")
		case <-cmd.Closed:
			m.Logger.Println("server shutdown completed")
		}

		// goodbye.

	case "backup":
		name := backup.NewCommand()
		if err := name.Run(args...); err != nil {
			return fmt.Errorf("backup: %s", err)
		}
	case "restore":
		name := restore.NewCommand()
		if err := name.Run(args...); err != nil {
			return fmt.Errorf("restore: %s", err)
		}
	case "config":
		if err := run.NewPrintConfigCommand().Run(args...); err != nil {
			return fmt.Errorf("config: %s", err)
		}
	case "version":
		if err := NewVersionCommand().Run(args...); err != nil {
			return fmt.Errorf("version: %s", err)
		}
	case "help":
		if err := help.NewCommand().Run(args...); err != nil {
			return fmt.Errorf("help: %s", err)
		}
	default:
		return fmt.Errorf(`unknown command "%s"`+"\n"+`Run 'influxd help' for usage`+"\n\n", name)
	}

	return nil
}