diff --git a/internal/nodes/http_request.go b/internal/nodes/http_request.go
index bbab46d..db6253d 100644
--- a/internal/nodes/http_request.go
+++ b/internal/nodes/http_request.go
@@ -64,6 +64,8 @@ type HTTPRequest struct {
 	firewallRuleGroupId int64
 	firewallRuleSetId   int64
 	firewallRuleId      int64
+
+	logAttrs map[string]string
 }
 
 // 初始化
@@ -79,6 +81,7 @@ func (this *HTTPRequest) init() {
 		"cache.policy.id":   "0",
 		"cache.policy.type": "",
 	}
+	this.logAttrs = map[string]string{}
 	this.requestFromTime = time.Now()
 }
 
diff --git a/internal/nodes/http_request_log.go b/internal/nodes/http_request_log.go
index 927f872..105919d 100644
--- a/internal/nodes/http_request_log.go
+++ b/internal/nodes/http_request_log.go
@@ -120,6 +120,8 @@ func (this *HTTPRequest) log() {
 		FirewallRuleGroupId: this.firewallRuleGroupId,
 		FirewallRuleSetId:   this.firewallRuleSetId,
 		FirewallRuleId:      this.firewallRuleId,
+
+		Attrs: this.logAttrs,
 	}
 
 	if this.origin != nil {
diff --git a/internal/nodes/http_request_waf.go b/internal/nodes/http_request_waf.go
index af5a7d6..96dcfb4 100644
--- a/internal/nodes/http_request_waf.go
+++ b/internal/nodes/http_request_waf.go
@@ -3,6 +3,7 @@ package nodes
 import (
 	"github.com/TeaOSLab/EdgeNode/internal/waf"
 	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/types"
 	"net/http"
 )
 
@@ -13,7 +14,7 @@ func (this *HTTPRequest) doWAFRequest() (blocked bool) {
 		return
 	}
 
-	goNext, _, ruleSet, err := w.MatchRequest(this.RawReq, this.writer)
+	goNext, ruleGroup, ruleSet, err := w.MatchRequest(this.RawReq, this.writer)
 	if err != nil {
 		logs.Error(err)
 		return
@@ -21,8 +22,12 @@ func (this *HTTPRequest) doWAFRequest() (blocked bool) {
 
 	if ruleSet != nil {
 		if ruleSet.Action != waf.ActionAllow {
-			// TODO 记录日志
+			this.firewallPolicyId = this.web.FirewallPolicy.Id
+			this.firewallRuleGroupId = types.Int64(ruleGroup.Id)
+			this.firewallRuleSetId = types.Int64(ruleSet.Id)
 		}
+
+		this.logAttrs["waf.action"] = ruleSet.Action
 	}
 
 	return !goNext
@@ -35,7 +40,7 @@ func (this *HTTPRequest) doWAFResponse(resp *http.Response) (blocked bool) {
 		return
 	}
 
-	goNext, _, ruleSet, err := w.MatchResponse(this.RawReq, resp, this.writer)
+	goNext, ruleGroup, ruleSet, err := w.MatchResponse(this.RawReq, resp, this.writer)
 	if err != nil {
 		logs.Error(err)
 		return
@@ -43,8 +48,12 @@ func (this *HTTPRequest) doWAFResponse(resp *http.Response) (blocked bool) {
 
 	if ruleSet != nil {
 		if ruleSet.Action != waf.ActionAllow {
-			// TODO 记录日志
+			this.firewallPolicyId = this.web.FirewallPolicy.Id
+			this.firewallRuleGroupId = types.Int64(ruleGroup.Id)
+			this.firewallRuleSetId = types.Int64(ruleSet.Id)
 		}
+
+		this.logAttrs["waf.action"] = ruleSet.Action
 	}
 
 	return !goNext
diff --git a/internal/rpc/rpc_client.go b/internal/rpc/rpc_client.go
index a31b6c1..980f8f6 100644
--- a/internal/rpc/rpc_client.go
+++ b/internal/rpc/rpc_client.go
@@ -13,15 +13,19 @@ import (
 	"github.com/iwind/TeaGo/maps"
 	"github.com/iwind/TeaGo/rands"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/connectivity"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/metadata"
 	"net/url"
+	"sync"
 	"time"
 )
 
 type RPCClient struct {
 	apiConfig *configs.APIConfig
 	conns     []*grpc.ClientConn
+
+	locker sync.Mutex
 }
 
 func NewRPCClient(apiConfig *configs.APIConfig) (*RPCClient, error) {
@@ -29,35 +33,16 @@ func NewRPCClient(apiConfig *configs.APIConfig) (*RPCClient, error) {
 		return nil, errors.New("api config should not be nil")
 	}
 
-	conns := []*grpc.ClientConn{}
-	for _, endpoint := range apiConfig.RPC.Endpoints {
-		u, err := url.Parse(endpoint)
-		if err != nil {
-			return nil, errors.New("parse endpoint failed: " + err.Error())
-		}
-		var conn *grpc.ClientConn
-		if u.Scheme == "http" {
-			conn, err = grpc.Dial(u.Host, grpc.WithInsecure())
-		} else if u.Scheme == "https" {
-			conn, err = grpc.Dial(u.Host, grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{
-				InsecureSkipVerify: true,
-			})))
-		} else {
-			return nil, errors.New("parse endpoint failed: invalid scheme '" + u.Scheme + "'")
-		}
-		if err != nil {
-			return nil, err
-		}
-		conns = append(conns, conn)
-	}
-	if len(conns) == 0 {
-		return nil, errors.New("[RPC]no available endpoints")
+	client := &RPCClient{
+		apiConfig: apiConfig,
 	}
 
-	return &RPCClient{
-		apiConfig: apiConfig,
-		conns:     conns,
-	}, nil
+	err := client.init()
+	if err != nil {
+		return nil, err
+	}
+
+	return client, nil
 }
 
 func (this *RPCClient) NodeRPC() pb.NodeServiceClient {
@@ -129,10 +114,66 @@ func (this *RPCClient) Close() {
 	}
 }
 
+// 初始化
+func (this *RPCClient) init() error {
+	// 重新连接
+	conns := []*grpc.ClientConn{}
+	for _, endpoint := range this.apiConfig.RPC.Endpoints {
+		u, err := url.Parse(endpoint)
+		if err != nil {
+			return errors.New("parse endpoint failed: " + err.Error())
+		}
+		var conn *grpc.ClientConn
+		if u.Scheme == "http" {
+			conn, err = grpc.Dial(u.Host, grpc.WithInsecure())
+		} else if u.Scheme == "https" {
+			conn, err = grpc.Dial(u.Host, grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{
+				InsecureSkipVerify: true,
+			})))
+		} else {
+			return errors.New("parse endpoint failed: invalid scheme '" + u.Scheme + "'")
+		}
+		if err != nil {
+			return err
+		}
+		conns = append(conns, conn)
+	}
+	if len(conns) == 0 {
+		return errors.New("[RPC]no available endpoints")
+	}
+	this.conns = conns
+	return nil
+}
+
 // 随机选择一个连接
 func (this *RPCClient) pickConn() *grpc.ClientConn {
+	this.locker.Lock()
+	defer this.locker.Unlock()
+
+	// 检查连接状态
+	if len(this.conns) > 0 {
+		availableConns := []*grpc.ClientConn{}
+		for _, conn := range this.conns {
+			if conn.GetState() == connectivity.Ready {
+				availableConns = append(availableConns, conn)
+			}
+		}
+
+		if len(availableConns) > 0 {
+			return availableConns[rands.Int(0, len(availableConns)-1)]
+		}
+	}
+
+	// 重新初始化
+	err := this.init()
+	if err != nil {
+		// 错误提示已经在构造对象时打印过，所以这里不再重复打印
+		return nil
+	}
+
 	if len(this.conns) == 0 {
 		return nil
 	}
+
 	return this.conns[rands.Int(0, len(this.conns)-1)]
 }
diff --git a/internal/waf/template.go b/internal/waf/template.go
index 244b523..82e4abe 100644
--- a/internal/waf/template.go
+++ b/internal/waf/template.go
@@ -1,7 +1,5 @@
 package waf
 
-// 感谢以下规则来源：
-// - Janusec: https://www.janusec.com/
 func Template() *WAF {
 	waf := NewWAF()
 	waf.Id = "template"