fix empty path

pkg/naming/zookeeper/zookeeper.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"net/url"
 	"path"
 	"strings"
 	"sync"
@@ -203,14 +204,14 @@ func (z *Zookeeper) createPath(paths string) error {
 		ret, err := z.cli.Create(lastPath, nil, 0, zk.WorldACL(zk.PermAll))
 		if err != nil {
 			log.Warn(fmt.Sprintf("createPath, fail to Create node:(%s). error:(%v)", paths, err))
-			return err
-		}
+		} else {
 			log.Info(fmt.Sprintf("createPath, succeed to Create node:(%s). retStr:(%s)", paths, ret))
 		}
+	}
 	return nil
 }
 
-func (z *Zookeeper) registerPeerServer(name, host string, ins *naming.Instance) (err error) {
+func (z *Zookeeper) registerPeerServer(nodePath string, ins *naming.Instance) (err error) {
 	var (
 		str string
 	)
@@ -219,11 +220,18 @@ func (z *Zookeeper) registerPeerServer(name, host string, ins *naming.Instance)
 		return
 	}
 	log.Info(fmt.Sprintf("registerPeerServer, ins after json.Marshal:(%v)", string(val)))
-	str, err = z.cli.Create(name+host, val, zk.FlagEphemeral, zk.WorldACL(zk.PermAll))
+	ok, _, err := z.cli.Exists(nodePath)
+	if err != nil {
+		return err
+	}
+	if ok {
+		return nil
+	}
+	str, err = z.cli.Create(nodePath, val, zk.FlagEphemeral, zk.WorldACL(zk.PermAll))
 	if err != nil {
-		log.Warn(fmt.Sprintf("registerPeerServer, fail to Create node:%s. error:(%v)", name+host, err))
+		log.Warn(fmt.Sprintf("registerPeerServer, fail to Create node:%s. error:(%v)", nodePath, err))
 	} else {
-		log.Info(fmt.Sprintf("registerPeerServer, succeed to Create node:%s. retStr:(%s)", name+host, str))
+		log.Info(fmt.Sprintf("registerPeerServer, succeed to Create node:%s. retStr:(%s)", nodePath, str))
 	}
 	return
 }
@@ -237,8 +245,12 @@ func (z *Zookeeper) register(ctx context.Context, ins *naming.Instance) (err err
 		log.Warn(fmt.Sprintf("register, fail to createPath node error:(%v)", err))
 	}
 	for _, addr := range ins.Addrs {
-		addr = strings.Replace(addr, "://", ":", 1)
-		if err = z.registerPeerServer(prefix, "/"+addr, ins); err != nil {
+		u, err := url.Parse(addr)
+		if err != nil {
+			continue
+		}
+		nodePath := prefix + "/" + strings.SplitN(u.Host, ":", 2)[0]
+		if err = z.registerPeerServer(nodePath, ins); err != nil {
 			log.Warn(fmt.Sprintf("registerServer, fail to RegisterPeerServer node:%s error:(%v)", addr, err))
 		} else {
 			log.Info(fmt.Sprintf("registerServer, succeed to RegistServer node."))
@@ -251,26 +263,29 @@ func (z *Zookeeper) unregister(ins *naming.Instance) (err error) {
 	log.Info("zookeeper unregister enter, instance Addrs:(%v)", ins.Addrs)
 	prefix := z.keyPrefix(ins.AppID)
 	for _, addr := range ins.Addrs {
-		addr = strings.Replace(addr, ":", "://", 1)
-		strNode := prefix + "/" + addr
-		exists, _, err := z.cli.Exists(strNode)
+		u, err := url.Parse(addr)
 		if err != nil {
-			log.Error("zk.Conn.Exists node:(%v), error:(%v)", strNode, err)
+			continue
+		}
+		nodePath := prefix + "/" + strings.SplitN(u.Host, ":", 2)[0]
+		exists, _, err := z.cli.Exists(nodePath)
+		if err != nil {
+			log.Error("zk.Conn.Exists node:(%v), error:(%v)", nodePath, err)
 			continue
 		}
 		if exists {
-			_, s, err := z.cli.Get(strNode)
+			_, s, err := z.cli.Get(nodePath)
 			if err != nil {
-				log.Error("zk.Conn.Get node:(%s), error:(%v)", strNode, err)
+				log.Error("zk.Conn.Get node:(%s), error:(%v)", nodePath, err)
 				continue
 			}
-			if err = z.cli.Delete(strNode, s.Version); err != nil {
-				log.Error("zk.Conn.Delete node:(%s), error:(%v)", strNode, err)
+			if err = z.cli.Delete(nodePath, s.Version); err != nil {
+				log.Error("zk.Conn.Delete node:(%s), error:(%v)", nodePath, err)
 				continue
 			}
 		}
 
-		log.Info(fmt.Sprintf("unregister, client.Delete:(%v), appid:(%v), hostname:(%v) success", strNode, ins.AppID, ins.Hostname))
+		log.Info(fmt.Sprintf("unregister, client.Delete:(%v), appid:(%v), hostname:(%v) success", nodePath, ins.AppID, ins.Hostname))
 	}
 	return
 }
@@ -287,8 +302,8 @@ func (z *Zookeeper) Close() error {
 
 func (a *appInfo) watch(appID string) {
 	_ = a.fetchstore(appID)
-	prefix := a.zkb.keyPrefix(appID)
 	go func() {
+		prefix := a.zkb.keyPrefix(appID)
 		for {
 			log.Info(fmt.Sprintf("zk ChildrenW enter, prefix:(%v)", prefix))
 			snapshot, _, event, err := a.zkb.cli.ChildrenW(prefix)
@@ -297,7 +312,7 @@ func (a *appInfo) watch(appID string) {
 				time.Sleep(time.Second)
 				continue
 			}
-			log.Info(fmt.Sprintf("zk ChildrenW ok, snapshot:(%v)", snapshot))
+			log.Info(fmt.Sprintf("zk ChildrenW ok, prefix:%s snapshot:(%v)", prefix, snapshot))
 			for ev := range event {
 				log.Info(fmt.Sprintf("zk ChildrenW ok, prefix:(%v), event Path:(%v), Type:(%v)", prefix, ev.Path, ev.Type))
 				if ev.Type == zk.EventNodeChildrenChanged {
@@ -310,6 +325,7 @@ func (a *appInfo) watch(appID string) {
 
 func (a *appInfo) fetchstore(appID string) (err error) {
 	prefix := a.zkb.keyPrefix(appID)
+	a.zkb.createPath(prefix)
 	childs, _, err := a.zkb.cli.Children(prefix)
 	if err != nil {
 		log.Error(fmt.Sprintf("fetchstore, fail to get Children of node:(%v), error:(%v)", prefix, err))

pkg/naming/zookeeper/zookeeper_test.go

@@ -39,7 +39,7 @@ func TestZookeeper(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	time.Sleep(time.Second)
+	time.Sleep(time.Second * 3)
 	in, ok := res.Fetch(context.TODO())
 	if !ok {
 		t.Fatal("failed to resolver fetch")