Golang log.ErrorErrorf函数代码示例

// add redis server to exist server group
func apiAddServerToGroup(server models.Server, param martini.Params) (int, string) {
	groupId, _ := strconv.Atoi(param["id"])
	lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
	if err := lock.LockWithTimeout(0, fmt.Sprintf("add server to group,  %+v", server)); err != nil {
		return 500, err.Error()
	}
	defer func() {
		err := lock.Unlock()
		if err != nil && err != zk.ErrNoNode {
			log.ErrorErrorf(err, "unlock node failed")
		}
	}()
	// check group exists first
	serverGroup := models.NewServerGroup(globalEnv.ProductName(), groupId)

	exists, err := serverGroup.Exists(safeZkConn)
	if err != nil {
		log.ErrorErrorf(err, "check group exits failed")
		return 500, err.Error()
	}

	// create new group if not exists
	if !exists {
		if err := serverGroup.Create(safeZkConn); err != nil {
			return 500, err.Error()
		}
	}

	if err := serverGroup.AddServer(safeZkConn, &server, globalEnv.Password()); err != nil {
		log.ErrorErrorf(err, "add server to group failed")
		return 500, err.Error()
	}

	return jsonRetSucc()
}

func apiPromoteServer(server models.Server, param martini.Params) (int, string) {
	lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
	if err := lock.LockWithTimeout(0, fmt.Sprintf("promote server %+v", server)); err != nil {
		return 500, err.Error()
	}
	defer func() {
		err := lock.Unlock()
		if err != nil && err != zk.ErrNoNode {
			log.ErrorErrorf(err, "unlock node failed")
		}
	}()

	group, err := models.GetGroup(safeZkConn, globalEnv.ProductName(), server.GroupId)
	if err != nil {
		log.ErrorErrorf(err, "get group %d failed", server.GroupId)
		return 500, err.Error()
	}
	err = group.Promote(safeZkConn, server.Addr, globalEnv.Password())
	if err != nil {
		log.ErrorErrorf(err, "promote group %d failed", server.GroupId)
		return 500, err.Error()
	}

	return jsonRetSucc()
}

func apiSlotRangeSet(task RangeSetTask) (int, string) {
	lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
	if err := lock.LockWithTimeout(0, fmt.Sprintf("set slot range, %+v", task)); err != nil {
		return 500, err.Error()
	}
	defer func() {
		err := lock.Unlock()
		if err != nil && err != zk.ErrNoNode {
			log.ErrorErrorf(err, "unlock node failed")
		}
	}()

	// default set online
	if len(task.Status) == 0 {
		task.Status = string(models.SLOT_STATUS_ONLINE)
	}

	err := models.SetSlotRange(safeZkConn, globalEnv.ProductName(), task.FromSlot, task.ToSlot, task.NewGroupId, models.SlotStatus(task.Status))
	if err != nil {
		log.ErrorErrorf(err, "set slot range [%d,%d] failed", task.FromSlot, task.ToSlot)
		return 500, err.Error()
	}

	return jsonRetSucc()
}

// create new server group
func apiAddServerGroup(newGroup models.ServerGroup) (int, string) {
	lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
	if err := lock.LockWithTimeout(0, fmt.Sprintf("add group %+v", newGroup)); err != nil {
		return 500, err.Error()
	}

	defer func() {
		err := lock.Unlock()
		if err != nil && err != zk.ErrNoNode {
			log.ErrorErrorf(err, "unlock node failed")
		}
	}()

	newGroup.ProductName = globalEnv.ProductName()

	exists, err := newGroup.Exists(safeZkConn)
	if err != nil {
		log.ErrorErrorf(err, "check group exits failed")
		return 500, err.Error()
	}
	if exists {
		return 500, "group already exists"
	}
	err = newGroup.Create(safeZkConn)
	if err != nil {
		log.ErrorErrorf(err, "create node for new group failed")
		return 500, err.Error()
	}
	return jsonRetSucc()
}

func apiGetServerGroup(param martini.Params) (int, string) {
	id := param["id"]
	groupId, err := strconv.Atoi(id)
	if err != nil {
		log.ErrorErrorf(err, "parse groupid failed")
		return 500, err.Error()
	}
	group, err := models.GetGroup(safeZkConn, globalEnv.ProductName(), groupId)
	if err != nil {
		log.ErrorErrorf(err, "get group %d failed", groupId)
		return 500, err.Error()
	}
	b, err := json.MarshalIndent(group, " ", "  ")
	return 200, string(b)
}

// actions
func apiActionGC(r *http.Request) (int, string) {
	r.ParseForm()
	keep, _ := strconv.Atoi(r.FormValue("keep"))
	secs, _ := strconv.Atoi(r.FormValue("secs"))
	lock := utils.GetZkLock(safeZkConn, globalEnv.ProductName())
	if err := lock.LockWithTimeout(0, fmt.Sprintf("action gc")); err != nil {
		return 500, err.Error()
	}
	defer func() {
		err := lock.Unlock()
		if err != nil && err != zk.ErrNoNode {
			log.ErrorErrorf(err, "unlock node failed")
		}
	}()

	var err error
	if keep >= 0 {
		err = models.ActionGC(safeZkConn, globalEnv.ProductName(), models.GC_TYPE_N, keep)
	} else if secs > 0 {
		err = models.ActionGC(safeZkConn, globalEnv.ProductName(), models.GC_TYPE_SEC, secs)
	}
	if err != nil {
		return 500, err.Error()
	}
	return jsonRetSucc()
}

func (s *Server) loopEvents() {
	ticker := time.NewTicker(time.Second)
	defer ticker.Stop()

	var tick int = 0
	for s.info.State == models.PROXY_STATE_ONLINE {
		select {
		case <-s.kill:
			log.Infof("mark offline, proxy is killed: %s", s.info.Id)
			s.markOffline()
		case e := <-s.evtbus:
			evtPath := getEventPath(e)
			log.Infof("got event %s, %v, lastActionSeq %d", s.info.Id, e, s.lastActionSeq)
			if strings.Index(evtPath, models.GetActionResponsePath(s.conf.productName)) == 0 {
				seq, err := strconv.Atoi(path.Base(evtPath))
				if err != nil {
					log.ErrorErrorf(err, "parse action seq failed")
				} else {
					if seq < s.lastActionSeq {
						log.Infof("ignore seq = %d", seq)
						continue
					}
				}
			}
			s.processAction(e)
		case <-ticker.C:
			if maxTick := s.conf.pingPeriod; maxTick != 0 {
				if tick++; tick >= maxTick {
					s.router.KeepAlive()
					tick = 0
				}
			}
		}
	}
}

func cmdProxy(argv []string) (err error) {
	usage := `usage:
	codis-config proxy list
	codis-config proxy offline <proxy_name>
	codis-config proxy online <proxy_name>
`
	args, err := docopt.Parse(usage, argv, true, "", false)
	if err != nil {
		log.ErrorErrorf(err, "parse args failed")
		return err
	}
	log.Debugf("parse args = {%+v}", args)

	if args["list"].(bool) {
		return runProxyList()
	}

	proxyName := args["<proxy_name>"].(string)
	if args["online"].(bool) {
		return runSetProxyStatus(proxyName, models.PROXY_STATE_ONLINE)
	}
	if args["offline"].(bool) {
		return runSetProxyStatus(proxyName, models.PROXY_STATE_MARK_OFFLINE)
	}
	return nil
}

func cmdDashboard(argv []string) (err error) {
	usage := `usage: codis-config dashboard [--addr=<address>] [--http-log=<log_file>]

options:
	--addr	listen ip:port, e.g. localhost:18087, :18087, [default: :18087]
	--http-log	http request log [default: request.log ]
`

	args, err := docopt.Parse(usage, argv, true, "", false)
	if err != nil {
		log.ErrorErrorf(err, "parse args failed")
		return err
	}
	log.Debugf("parse args = {%+v}", args)

	logFileName := "request.log"
	if args["--http-log"] != nil {
		logFileName = args["--http-log"].(string)
	}

	addr := ":18087"
	if args["--addr"] != nil {
		addr = args["--addr"].(string)
	}

	runDashboard(addr, logFileName)
	return nil
}

func cmdServer(argv []string) (err error) {
	usage := `usage:
	codis-config server list
	codis-config server add <group_id> <redis_addr> <role>
	codis-config server remove <group_id> <redis_addr>
	codis-config server promote <group_id> <redis_addr>
	codis-config server add-group <group_id>
	codis-config server remove-group <group_id>
`
	args, err := docopt.Parse(usage, argv, true, "", false)
	if err != nil {
		log.ErrorErrorf(err, "parse args failed")
		return err
	}
	log.Debugf("parse args = {%+v}", args)

	if args["list"].(bool) {
		return runListServerGroup()
	}

	groupId, err := strconv.Atoi(args["<group_id>"].(string))
	if err != nil {
		log.ErrorErrorf(err, "parse <group_id> failed")
		return err
	}

	if args["remove-group"].(bool) {
		return runRemoveServerGroup(groupId)
	}
	if args["add-group"].(bool) {
		return runAddServerGroup(groupId)
	}

	serverAddr := args["<redis_addr>"].(string)
	if args["add"].(bool) {
		role := args["<role>"].(string)
		return runAddServerToGroup(groupId, serverAddr, role)
	}
	if args["remove"].(bool) {
		return runRemoveServerFromGroup(groupId, serverAddr)
	}
	if args["promote"].(bool) {
		return runPromoteServerToMaster(groupId, serverAddr)
	}

	return nil
}

func apiForceRemoveLocks() (int, string) {
	err := models.ForceRemoveLock(safeZkConn, globalEnv.ProductName())
	if err != nil {
		log.ErrorErrorf(err, "force remove lock failed")
		return 500, err.Error()
	}
	return jsonRetSucc()
}

func cmdAction(argv []string) (err error) {
	usage := `usage: codis-config action (gc [-n <num> | -s <seconds>] | remove-lock | remove-fence)

options:
	gc:
	gc -n N		keep last N actions;
	gc -s Sec	keep last Sec seconds actions;

	remove-lock	force remove zookeeper lock;
`
	args, err := docopt.Parse(usage, argv, true, "", false)
	if err != nil {
		log.ErrorErrorf(err, "parse args failed")
		return errors.Trace(err)
	}
	log.Debugf("parse args = {%+v}", args)

	if args["remove-lock"].(bool) {
		return errors.Trace(runRemoveLock())
	}

	if args["remove-fence"].(bool) {
		return errors.Trace(runRemoveFence())
	}

	if args["gc"].(bool) {
		if args["-n"].(bool) {
			n, err := strconv.Atoi(args["<num>"].(string))
			if err != nil {
				log.ErrorErrorf(err, "parse <num> failed")
				return err
			}
			return runGCKeepN(n)
		} else if args["-s"].(bool) {
			sec, err := strconv.Atoi(args["<seconds>"].(string))
			if err != nil {
				log.ErrorErrorf(err, "parse <seconds> failed")
				return errors.Trace(err)
			}
			return runGCKeepNSec(sec)
		}
	}

	return nil
}

func apiGetRedisSlotInfo(param martini.Params) (int, string) {
	addr := param["addr"]
	slotId, err := strconv.Atoi(param["id"])
	if err != nil {
		log.ErrorErrorf(err, "parse slotid failed")
		return 500, err.Error()
	}
	slotInfo, err := utils.SlotsInfo(addr, globalEnv.Password(), slotId, slotId)
	if err != nil {
		log.ErrorErrorf(err, "get slot info %d failed", slotId)
		return 500, err.Error()
	}
	out, _ := json.MarshalIndent(map[string]interface{}{
		"keys":    slotInfo[slotId],
		"slot_id": slotId,
	}, " ", "  ")
	return 200, string(out)
}

func apiGetServerGroupList() (int, string) {
	groups, err := models.ServerGroups(safeZkConn, globalEnv.ProductName())
	if err != nil {
		log.ErrorErrorf(err, "get server groups failed")
		return 500, err.Error()
	}
	b, err := json.MarshalIndent(groups, " ", "  ")
	return 200, string(b)
}

func (m *MigrateManager) loop() error {
	for {
		time.Sleep(time.Second)
		info := m.NextTask()
		if info == nil {
			continue
		}
		t := GetMigrateTask(*info)
		err := t.preMigrateCheck()
		if err != nil {
			log.ErrorErrorf(err, "pre migrate check failed")
		}
		err = t.run()
		if err != nil {
			log.ErrorErrorf(err, "migrate failed")
		}
	}
}