diff --git a/drivers/discovery/nacos/nacos.go b/drivers/discovery/nacos/nacos.go
index 04ea9cd0..1bb2a10a 100644
--- a/drivers/discovery/nacos/nacos.go
+++ b/drivers/discovery/nacos/nacos.go
@@ -103,7 +103,7 @@ func (n *executor) Start() error {
 					for _, serviceName := range keys {
 						res, err := n.client.GetNodeList(serviceName)
 						if err != nil {
-							log.Warnf("executor %s:%w for service %s", n.Name(), discovery.ErrDiscoveryDown, serviceName)
+							log.Warnf("executor %s:%v for service %s,err:%v", n.Name(), discovery.ErrDiscoveryDown, serviceName, err)
 						}
 						//更新目标服务的节点列表
 						n.services.Set(serviceName, res)
diff --git a/drivers/output/nsq/write.go b/drivers/output/nsq/write.go
index 977eb9b2..4906a1bd 100644
--- a/drivers/output/nsq/write.go
+++ b/drivers/output/nsq/write.go
@@ -12,7 +12,7 @@ import (
 )
 
 const (
-	maxBufSize = 32
+	maxBufSize = 4 * 1024 * 1024 // 4M
 )
 
 type Writer struct {
@@ -26,6 +26,7 @@ type Writer struct {
 	//multiBodySize int64
 	//multiBodies   []multiBody
 	bodyChan chan []byte
+	bodySize int
 	poolChan chan *producerPool
 }
 
@@ -141,14 +142,15 @@ func (n *Writer) doLoop() {
 			}
 
 			buf = append(buf, body)
+			n.bodySize += len(body)
 			if pool == nil {
 				timer.Reset(500 * time.Millisecond)
 				continue
 			}
-			if len(buf) >= maxBufSize {
+			if n.bodySize >= maxBufSize {
 				tmp := buf
 				buf = buf[:0]
-
+				n.bodySize = 0
 				err := pool.Publish(n.topic, tmp)
 				if err != nil {
 					log.Error("nsq publish error: ", err.Error())
diff --git a/scope-manager/proxy.go b/scope-manager/proxy.go
index f302cd57..b341e745 100644
--- a/scope-manager/proxy.go
+++ b/scope-manager/proxy.go
@@ -13,7 +13,9 @@ func newProxy() *_Proxy {
 }
 
 func (p *_Proxy) Set(values []interface{}) {
-	p.pointer.Store(&values)
+	tmp := make([]interface{}, 0, len(values))
+	tmp = append(tmp, values...)
+	p.pointer.Store(&tmp)
 }
 
 func (p *_Proxy) List() []interface{} {