diff --git a/internal/rpc/rpc_client.go b/internal/rpc/rpc_client.go
index 920b9df5..82d957d8 100644
--- a/internal/rpc/rpc_client.go
+++ b/internal/rpc/rpc_client.go
@@ -31,7 +31,7 @@ type RPCClient struct {
 }
 
 // NewRPCClient 构造新的RPC客户端
-func NewRPCClient(apiConfig *configs.APIConfig) (*RPCClient, error) {
+func NewRPCClient(apiConfig *configs.APIConfig, isPrimary bool) (*RPCClient, error) {
 	if apiConfig == nil {
 		return nil, errors.New("api config should not be nil")
 	}
@@ -46,7 +46,9 @@ func NewRPCClient(apiConfig *configs.APIConfig) (*RPCClient, error) {
 	}
 
 	// 设置RPC
-	dao.SetRPC(client)
+	if isPrimary {
+		dao.SetRPC(client)
+	}
 
 	return client, nil
 }
@@ -611,3 +613,20 @@ func (this *RPCClient) pickConn() *grpc.ClientConn {
 
 	return this.conns[rands.Int(0, len(this.conns)-1)]
 }
+
+// Close 关闭
+func (this *RPCClient) Close() error {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	var lastErr error
+	for _, conn := range this.conns {
+		var err = conn.Close()
+		if err != nil {
+			lastErr = err
+			continue
+		}
+	}
+
+	return lastErr
+}
diff --git a/internal/rpc/rpc_utils.go b/internal/rpc/rpc_utils.go
index ad0e474a..35ea970e 100644
--- a/internal/rpc/rpc_utils.go
+++ b/internal/rpc/rpc_utils.go
@@ -20,7 +20,7 @@ func SharedRPC() (*RPCClient, error) {
 	if err != nil {
 		return nil, err
 	}
-	client, err := NewRPCClient(config)
+	client, err := NewRPCClient(config, true)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/web/actions/default/nodes/nodeutils/utils.go b/internal/web/actions/default/nodes/nodeutils/utils.go
index 4c700ba7..dbea17b3 100644
--- a/internal/web/actions/default/nodes/nodeutils/utils.go
+++ b/internal/web/actions/default/nodes/nodeutils/utils.go
@@ -48,6 +48,7 @@ func SendMessageToCluster(ctx context.Context, clusterId int64, code string, msg
 
 	wg := &sync.WaitGroup{}
 	wg.Add(len(nodes))
+
 	for _, node := range nodes {
 		// TODO 检查是否在线
 
@@ -104,7 +105,7 @@ func SendMessageToCluster(ctx context.Context, clusterId int64, code string, msg
 				},
 				NodeId: apiNode.UniqueId,
 				Secret: apiNode.Secret,
-			})
+			}, false)
 			if err != nil {
 				locker.Lock()
 				results = append(results, &MessageResult{
@@ -162,6 +163,11 @@ func SendMessageToCluster(ctx context.Context, clusterId int64, code string, msg
 		})
 	}
 
+	// 关闭RPC
+	for _, rpcClient := range rpcMap {
+		_ = rpcClient.Close()
+	}
+
 	return
 }
 
@@ -279,7 +285,7 @@ func SendMessageToNodeIds(ctx context.Context, nodeIds []int64, code string, msg
 				},
 				NodeId: apiNode.UniqueId,
 				Secret: apiNode.Secret,
-			})
+			}, false)
 			if err != nil {
 				locker.Lock()
 				results = append(results, &MessageResult{
@@ -337,5 +343,10 @@ func SendMessageToNodeIds(ctx context.Context, nodeIds []int64, code string, msg
 		})
 	}
 
+	// 关闭RPC
+	for _, rpcClient := range rpcMap {
+		_ = rpcClient.Close()
+	}
+
 	return
 }
diff --git a/internal/web/actions/default/recover/updateHosts.go b/internal/web/actions/default/recover/updateHosts.go
index 03d3b976..f34a28db 100644
--- a/internal/web/actions/default/recover/updateHosts.go
+++ b/internal/web/actions/default/recover/updateHosts.go
@@ -42,7 +42,7 @@ func (this *UpdateHostsAction) RunPost(params struct {
 		},
 		NodeId: params.NodeId,
 		Secret: params.NodeSecret,
-	})
+	}, false)
 	if err != nil {
 		this.FailField("host", "测试API节点时出错，请检查配置，错误信息："+err.Error())
 	}
@@ -51,6 +51,10 @@ func (this *UpdateHostsAction) RunPost(params struct {
 		this.FailField("host", "无法连接此API节点，错误信息："+err.Error())
 	}
 
+	defer func() {
+		_ = client.Close()
+	}()
+
 	// 获取管理员节点信息
 	apiTokensResp, err := client.APITokenRPC().FindAllEnabledAPITokens(client.APIContext(0), &pb.FindAllEnabledAPITokensRequest{Role: "admin"})
 	if err != nil {
diff --git a/internal/web/actions/default/recover/validateApi.go b/internal/web/actions/default/recover/validateApi.go
index bfb926cc..acb37456 100644
--- a/internal/web/actions/default/recover/validateApi.go
+++ b/internal/web/actions/default/recover/validateApi.go
@@ -49,10 +49,15 @@ func (this *ValidateApiAction) RunPost(params struct {
 		},
 		NodeId: params.NodeId,
 		Secret: params.NodeSecret,
-	})
+	}, false)
 	if err != nil {
 		this.FailField("host", "测试API节点时出错，请检查配置，错误信息："+err.Error())
 	}
+
+	defer func() {
+		_ = client.Close()
+	}()
+
 	_, err = client.APINodeRPC().FindCurrentAPINodeVersion(client.APIContext(0), &pb.FindCurrentAPINodeVersionRequest{})
 	if err != nil {
 		this.FailField("host", "无法连接此API节点，错误信息："+err.Error())
diff --git a/internal/web/actions/default/setup/install.go b/internal/web/actions/default/setup/install.go
index e59201ec..95468c77 100644
--- a/internal/web/actions/default/setup/install.go
+++ b/internal/web/actions/default/setup/install.go
@@ -206,7 +206,7 @@ func (this *InstallAction) RunPost(params struct {
 
 		// 设置管理员
 		currentStatusText = "正在设置管理员"
-		client, err := rpc.NewRPCClient(apiConfig)
+		client, err := rpc.NewRPCClient(apiConfig, false)
 		if err != nil {
 			this.FailField("oldHost", "测试API节点时出错，请检查配置，错误信息："+err.Error())
 		}
@@ -263,11 +263,15 @@ func (this *InstallAction) RunPost(params struct {
 			NodeId: apiNodeMap.GetString("oldNodeId"),
 			Secret: apiNodeMap.GetString("oldNodeSecret"),
 		}
-		client, err := rpc.NewRPCClient(apiConfig)
+		client, err := rpc.NewRPCClient(apiConfig, false)
 		if err != nil {
 			this.FailField("oldHost", "测试API节点时出错，请检查配置，错误信息："+err.Error())
 		}
 
+		defer func() {
+			_ = client.Close()
+		}()
+
 		// 设置管理员
 		ctx := client.APIContext(0)
 		_, err = client.AdminRPC().CreateOrUpdateAdmin(ctx, &pb.CreateOrUpdateAdminRequest{
diff --git a/internal/web/actions/default/setup/validateApi.go b/internal/web/actions/default/setup/validateApi.go
index 4005d229..ddcac942 100644
--- a/internal/web/actions/default/setup/validateApi.go
+++ b/internal/web/actions/default/setup/validateApi.go
@@ -91,10 +91,15 @@ func (this *ValidateApiAction) RunPost(params struct {
 		},
 		NodeId: params.OldNodeId,
 		Secret: params.OldNodeSecret,
-	})
+	}, false)
 	if err != nil {
 		this.FailField("oldHost", "测试API节点时出错，请检查配置，错误信息："+err.Error())
 	}
+
+	defer func() {
+		_ = client.Close()
+	}()
+
 	_, err = client.APINodeRPC().FindCurrentAPINodeVersion(client.APIContext(0), &pb.FindCurrentAPINodeVersionRequest{})
 	if err != nil {
 		this.FailField("oldHost", "无法连接此API节点，错误信息："+err.Error())