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Golang Conn.Children方法代碼示例

本文整理匯總了Golang中github.com/ngaut/zkhelper.Conn.Children方法的典型用法代碼示例。如果您正苦於以下問題：Golang Conn.Children方法的具體用法？Golang Conn.Children怎麽用？Golang Conn.Children使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/ngaut/zkhelper.Conn的用法示例。


在下文中一共展示了Conn.Children方法的13個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: ServerGroups

func ServerGroups(zkConn zkhelper.Conn, productName string) ([]ServerGroup, error) {
	var ret []ServerGroup
	root := fmt.Sprintf("/zk/codis/db_%s/servers", productName)
	groups, _, err := zkConn.Children(root)
	if err != nil {
		return nil, errors.Trace(err)
	}

	// Buggy :X
	//zkhelper.ChildrenRecursive(*zkConn, root)

	for _, group := range groups {
		// parse group_1 => 1
		groupId, err := strconv.Atoi(strings.Split(group, "_")[1])
		if err != nil {
			return nil, errors.Trace(err)
		}
		g, err := GetGroup(zkConn, productName, groupId)
		if err != nil {
			return nil, errors.Trace(err)
		}
		ret = append(ret, *g)
	}
	return ret, nil
}
開發者ID:jameswei，項目名稱:xcodis，代碼行數:25，代碼來源:server_group.go

示例2: ServerGroups

func ServerGroups(coordConn zkhelper.Conn, productName string) ([]*ServerGroup, error) {
	var ret []*ServerGroup
	root := fmt.Sprintf("/zk/reborn/db_%s/servers", productName)
	groups, _, err := coordConn.Children(root)
	// if ErrNoNode, we may return an empty slice like ProxyList
	if err != nil && !zkhelper.ZkErrorEqual(err, zk.ErrNoNode) {
		return nil, errors.Trace(err)
	}

	// Buggy :X
	//zkhelper.ChildrenRecursive(*coordConn, root)

	for _, group := range groups {
		// parse group_1 => 1
		groupId, err := strconv.Atoi(strings.Split(group, "_")[1])
		if err != nil {
			return nil, errors.Trace(err)
		}
		g, err := GetGroup(coordConn, productName, groupId)
		if err != nil {
			return nil, errors.Trace(err)
		}
		ret = append(ret, g)
	}
	return ret, nil
}
開發者ID:IceiceFire，項目名稱:reborn，代碼行數:26，代碼來源:server_group.go

示例3: WaitForReceiverWithTimeout

func WaitForReceiverWithTimeout(zkConn zkhelper.Conn, productName string, actionZkPath string, proxies []ProxyInfo, timeoutInMs int) error {
	if len(proxies) == 0 {
		return nil
	}

	times := 0
	proxyIds := make(map[string]struct{})
	var offlineProxyIds []string
	for _, p := range proxies {
		proxyIds[p.Id] = struct{}{}
	}

	checkTimes := timeoutInMs / 500
	// check every 500ms
	for times < checkTimes {
		if times >= 6 && (times*500)%1000 == 0 {
			log.Warning("abnormal waiting time for receivers", actionZkPath, offlineProxyIds)
		}
		// get confirm ids
		nodes, _, err := zkConn.Children(actionZkPath)
		if err != nil {
			return errors.Trace(err)
		}
		confirmIds := make(map[string]struct{})
		for _, node := range nodes {
			id := path.Base(node)
			confirmIds[id] = struct{}{}
		}
		if len(confirmIds) != 0 {
			match := true
			// check if all proxy have responsed
			var notMatchList []string
			for id, _ := range proxyIds {
				// if proxy id not in confirm ids, means someone didn't response
				if _, ok := confirmIds[id]; !ok {
					match = false
					notMatchList = append(notMatchList, id)
				}
			}
			if match {
				return nil
			}
			offlineProxyIds = notMatchList
		}
		times += 1
		time.Sleep(500 * time.Millisecond)
	}
	if len(offlineProxyIds) > 0 {
		log.Error("proxies didn't responed: ", offlineProxyIds)
	}

	// set offline proxies
	for _, id := range offlineProxyIds {
		log.Errorf("mark proxy %s to PROXY_STATE_MARK_OFFLINE", id)
		if err := SetProxyStatus(zkConn, productName, id, PROXY_STATE_MARK_OFFLINE); err != nil {
			return errors.Trace(err)
		}
	}
	return errors.Trace(ErrReceiverTimeout)
}
開發者ID:ZuoGuocai，項目名稱:codis，代碼行數:60，代碼來源:action.go

示例4: GetActionSeqList

func GetActionSeqList(zkConn zkhelper.Conn, productName string) ([]int, error) {
	nodes, _, err := zkConn.Children(GetWatchActionPath(productName))
	if err != nil {
		return nil, errors.Trace(err)
	}

	return ExtraSeqList(nodes)
}
開發者ID:banyue，項目名稱:codis，代碼行數:8，代碼來源:action.go

示例5: ActionGC

func ActionGC(zkConn zkhelper.Conn, productName string, gcType int, keep int) error {
	prefix := GetWatchActionPath(productName)
	exists, err := zkhelper.NodeExists(zkConn, prefix)
	if err != nil {
		return errors.Trace(err)
	}
	if !exists {
		// if action path not exists just return nil
		return nil
	}

	actions, _, err := zkConn.Children(prefix)
	if err != nil {
		return errors.Trace(err)
	}

	var act Action
	currentTs := time.Now().Unix()

	if gcType == GC_TYPE_N {
		sort.Strings(actions)
		if len(actions) <= keep {
			return nil
		}

		for _, action := range actions[:len(actions)-keep] {
			if err := zkhelper.DeleteRecursive(zkConn, path.Join(prefix, action), -1); err != nil {
				return errors.Trace(err)
			}
		}
	} else if gcType == GC_TYPE_SEC {
		secs := keep
		for _, action := range actions {
			b, _, err := zkConn.Get(path.Join(prefix, action))
			if err != nil {
				return errors.Trace(err)
			}
			if err := json.Unmarshal(b, &act); err != nil {
				return errors.Trace(err)
			}
			log.Info(action, act.Ts)
			ts, _ := strconv.ParseInt(act.Ts, 10, 64)

			if currentTs-ts > int64(secs) {
				if err := zkConn.Delete(path.Join(prefix, action), -1); err != nil {
					return errors.Trace(err)
				}
			}
		}
	}

	return nil
}
開發者ID:banyue，項目名稱:codis，代碼行數:53，代碼來源:action.go

示例6: WaitForReceiver

func WaitForReceiver(zkConn zkhelper.Conn, productName string, actionZkPath string, proxies []ProxyInfo) error {
	if len(proxies) == 0 {
		return nil
	}

	times := 0
	var proxyIds []string
	var offlineProxyIds []string
	for _, p := range proxies {
		proxyIds = append(proxyIds, p.Id)
	}
	sort.Strings(proxyIds)
	// check every 500ms
	for times < 60 {
		if times >= 6 && (times*500)%1000 == 0 {
			log.Warning("abnormal waiting time for receivers", actionZkPath)
		}
		nodes, _, err := zkConn.Children(actionZkPath)
		if err != nil {
			return errors.Trace(err)
		}
		var confirmIds []string
		for _, node := range nodes {
			id := path.Base(node)
			confirmIds = append(confirmIds, id)
		}
		if len(confirmIds) != 0 {
			sort.Strings(confirmIds)
			if utils.Strings(proxyIds).Eq(confirmIds) {
				return nil
			}
			offlineProxyIds = proxyIds[len(confirmIds)-1:]
		}
		times += 1
		time.Sleep(500 * time.Millisecond)
	}
	if len(offlineProxyIds) > 0 {
		log.Error("proxies didn't responed: ", offlineProxyIds)
	}
	// set offline proxies
	for _, id := range offlineProxyIds {
		log.Errorf("mark proxy %s to PROXY_STATE_MARK_OFFLINE", id)
		if err := SetProxyStatus(zkConn, productName, id, PROXY_STATE_MARK_OFFLINE); err != nil {
			return err
		}
	}

	return ErrReceiverTimeout
}
開發者ID:banyue，項目名稱:codis，代碼行數:49，代碼來源:action.go

示例7: GetFenceProxyMap

func GetFenceProxyMap(zkConn zkhelper.Conn, productName string) (map[string]bool, error) {
	children, _, err := zkConn.Children(GetProxyFencePath(productName))
	if err != nil {
		if err.Error() == zk.ErrNoNode.Error() {
			return make(map[string]bool), nil
		} else {
			return nil, err
		}
	}
	m := make(map[string]bool, len(children))
	for _, fenceNode := range children {
		m[fenceNode] = true
	}
	return m, nil
}
開發者ID:ZuoGuocai，項目名稱:codis，代碼行數:15，代碼來源:proxy.go

示例8: GetServers

func (self *ServerGroup) GetServers(zkConn zkhelper.Conn) ([]Server, error) {
	var ret []Server
	root := fmt.Sprintf("/zk/codis/db_%s/servers/group_%d", self.ProductName, self.Id)
	nodes, _, err := zkConn.Children(root)
	if err != nil {
		return nil, errors.Trace(err)
	}
	for _, node := range nodes {
		nodePath := root + "/" + node
		s, err := GetServer(zkConn, nodePath)
		if err != nil {
			return nil, errors.Trace(err)
		}
		ret = append(ret, *s)
	}
	return ret, nil
}
開發者ID:jameswei，項目名稱:xcodis，代碼行數:17，代碼來源:server_group.go

示例9: GetServers

func (sg *ServerGroup) GetServers(coordConn zkhelper.Conn) ([]*Server, error) {
	var ret []*Server
	root := fmt.Sprintf("/zk/reborn/db_%s/servers/group_%d", sg.ProductName, sg.Id)
	nodes, _, err := coordConn.Children(root)
	if err != nil {
		return nil, errors.Trace(err)
	}
	for _, node := range nodes {
		nodePath := root + "/" + node
		s, err := GetServer(coordConn, nodePath)
		if err != nil {
			return nil, errors.Trace(err)
		}
		ret = append(ret, s)
	}
	return ret, nil
}
開發者ID:IceiceFire，項目名稱:reborn，代碼行數:17，代碼來源:server_group.go

示例10: ForceRemoveLock

func ForceRemoveLock(zkConn zkhelper.Conn, productName string) error {
	lockPath := fmt.Sprintf("/zk/codis/db_%s/LOCK", productName)
	children, _, err := zkConn.Children(lockPath)
	if err != nil {
		return errors.Trace(err)
	}

	for _, c := range children {
		fullPath := path.Join(lockPath, c)
		log.Info("deleting..", fullPath)
		err := zkConn.Delete(fullPath, 0)
		if err != nil {
			return errors.Trace(err)
		}
	}

	return nil
}
開發者ID:banyue，項目名稱:codis，代碼行數:18，代碼來源:action.go

示例11: ForceRemoveLock

func ForceRemoveLock(coordConn zkhelper.Conn, productName string) error {
	lockPath := fmt.Sprintf("/zk/reborn/db_%s/LOCK", productName)
	children, _, err := coordConn.Children(lockPath)
	if err != nil && !zkhelper.ZkErrorEqual(err, zk.ErrNoNode) {
		return errors.Trace(err)
	}

	for _, c := range children {
		fullPath := path.Join(lockPath, c)
		log.Info("deleting..", fullPath)
		err := coordConn.Delete(fullPath, 0)
		if err != nil {
			return errors.Trace(err)
		}
	}

	return nil
}
開發者ID:XMAN-WOMBAT，項目名稱:reborn，代碼行數:18，代碼來源:action.go

示例12: ProxyList

func ProxyList(zkConn zkhelper.Conn, productName string, filter func(*ProxyInfo) bool) ([]ProxyInfo, error) {
	ret := make([]ProxyInfo, 0)
	root := GetProxyPath(productName)
	proxies, _, err := zkConn.Children(root)
	if err != nil && !zkhelper.ZkErrorEqual(err, zk.ErrNoNode) {
		return nil, errors.Trace(err)
	}

	for _, proxyName := range proxies {
		pi, err := GetProxyInfo(zkConn, productName, proxyName)
		if err != nil {
			return nil, errors.Trace(err)
		}
		if filter == nil || filter(pi) == true {
			ret = append(ret, *pi)
		}
	}

	return ret, nil
}
開發者ID:ZuoGuocai，項目名稱:codis，代碼行數:20，代碼來源:proxy.go

示例13: Slots

func Slots(coordConn zkhelper.Conn, productName string) ([]*Slot, error) {
	coordPath := GetSlotBasePath(productName)
	children, _, err := coordConn.Children(coordPath)
	if err != nil {
		return nil, errors.Trace(err)
	}

	var slots []*Slot
	for _, p := range children {
		data, _, err := coordConn.Get(path.Join(coordPath, p))
		if err != nil {
			return nil, errors.Trace(err)
		}
		slot := &Slot{}
		if err := json.Unmarshal(data, &slot); err != nil {
			return nil, errors.Trace(err)
		}
		slots = append(slots, slot)
	}

	return slots, nil
}
開發者ID:superwood，項目名稱:reborn，代碼行數:22，代碼來源:slot.go


注：本文中的github.com/ngaut/zkhelper.Conn.Children方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。