diff --git a/3rdpart/ZLToolKit b/3rdpart/ZLToolKit
index 1eeb329f..bdc1fb59 160000
--- a/3rdpart/ZLToolKit
+++ b/3rdpart/ZLToolKit
@@ -1 +1 @@
-Subproject commit 1eeb329f1ebbd7439b1147141de7cec3b5e881e8
+Subproject commit bdc1fb594b96c0ec7b56cf2afffa1ff02341cdbb
diff --git a/src/Common/MediaSource.cpp b/src/Common/MediaSource.cpp
index 5cd13ed2..226bd2f2 100644
--- a/src/Common/MediaSource.cpp
+++ b/src/Common/MediaSource.cpp
@@ -237,5 +237,11 @@ void MediaInfo::parse(const string &url){
     }
 }
 
+void MediaSourceEvent::onNoneReader(MediaSource &sender){
+    WarnL << sender.getSchema() << "/" << sender.getVhost() << "/" << sender.getApp() << "/" << sender.getId();
+    //没有任何读取器消费该源，表明该源可以关闭了
+    NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastStreamNoneReader,sender);
+}
+
 
 } /* namespace mediakit */
\ No newline at end of file
diff --git a/src/Common/MediaSource.h b/src/Common/MediaSource.h
index 436f8128..d3f09b44 100644
--- a/src/Common/MediaSource.h
+++ b/src/Common/MediaSource.h
@@ -54,20 +54,17 @@ public:
     MediaSourceEvent(){};
     virtual ~MediaSourceEvent(){};
 public:
-    virtual bool seekTo(uint32_t ui32Stamp){
+    virtual bool seekTo(MediaSource &sender,uint32_t ui32Stamp){
         //拖动进度条
         return false;
     }
 
-    virtual bool close(bool force) {
+    virtual bool close(MediaSource &sender,bool force) {
         //通知其停止推流
         return false;
     }
 
-    virtual void onNoneReader(MediaSource &sender){
-        //没有任何读取器消费该源，表明该源可以关闭了
-        NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastStreamNoneReader,sender);
-    }
+    virtual void onNoneReader(MediaSource &sender);
 };
 
 class MediaInfo{
@@ -149,7 +146,7 @@ public:
         if(!listener){
             return false;
         }
-        return listener->seekTo(ui32Stamp);
+        return listener->seekTo(*this,ui32Stamp);
     }
 
     virtual uint32_t getTimeStamp(TrackType trackType) = 0;
@@ -159,7 +156,7 @@ public:
         if(!listener){
             return false;
         }
-        return listener->close(force);
+        return listener->close(*this,force);
     }
     virtual void setListener(const std::weak_ptr<MediaSourceEvent> &listener){
         _listener = listener;
diff --git a/src/Http/HttpClient.cpp b/src/Http/HttpClient.cpp
index 10bc187f..5846349f 100644
--- a/src/Http/HttpClient.cpp
+++ b/src/Http/HttpClient.cpp
@@ -130,7 +130,7 @@ void HttpClient::onConnect(const SockException &ex) {
         printer << pr.second + "\r\n";
     }
     send(printer << "\r\n");
-    onSend();
+    onFlush();
 }
 
 void HttpClient::onRecv(const Buffer::Ptr &pBuf) {
@@ -222,12 +222,11 @@ void HttpClient::onRecvContent(const char *data, uint64_t len) {
     onResponseCompleted_l();
     if(biggerThanExpected) {
         //声明的content数据比真实的小，那么我们只截取前面部分的并断开链接
-        shutdown();
-        onDisconnect(SockException(Err_other, "http response content size bigger than expected"));
+        shutdown(SockException(Err_shutdown, "http response content size bigger than expected"));
     }
 }
 
-void HttpClient::onSend() {
+void HttpClient::onFlush() {
     _aliveTicker.resetTime();
     while (_body && _body->remainSize() && !isSocketBusy()) {
         auto buffer = _body->readData();
@@ -252,8 +251,7 @@ void HttpClient::onManager() {
 
     if (_fTimeOutSec > 0 && _aliveTicker.elapsedTime() > _fTimeOutSec * 1000) {
         //超时
-        onDisconnect(SockException(Err_timeout, "http request timeout"));
-        shutdown();
+        shutdown(SockException(Err_timeout, "http request timeout"));
     }
 }
 
diff --git a/src/Http/HttpClient.h b/src/Http/HttpClient.h
index 14d9640c..bd41acf0 100644
--- a/src/Http/HttpClient.h
+++ b/src/Http/HttpClient.h
@@ -299,7 +299,7 @@ protected:
     virtual void onConnect(const SockException &ex) override;
     virtual void onRecv(const Buffer::Ptr &pBuf) override;
     virtual void onErr(const SockException &ex) override;
-    virtual void onSend() override;
+    virtual void onFlush() override;
     virtual void onManager() override;
 private:
     void onResponseCompleted_l();
diff --git a/src/Http/HttpDownloader.cpp b/src/Http/HttpDownloader.cpp
index 87ebf65d..aac62e0b 100644
--- a/src/Http/HttpDownloader.cpp
+++ b/src/Http/HttpDownloader.cpp
@@ -66,14 +66,7 @@ void HttpDownloader::startDownload(const string& url, const string& filePath,boo
 int64_t HttpDownloader::onResponseHeader(const string& status,const HttpHeader& headers) {
     if(status != "200" && status != "206"){
 		//失败
-		shutdown();
-		closeFile();
-		File::delete_file(_filePath.data());
-		if(_onResult){
-			auto errMsg = StrPrinter << "Http Status:" << status << endl;
-			_onResult(Err_other,errMsg,_filePath);
-			_onResult = nullptr;
-		}
+		shutdown(SockException(Err_shutdown,StrPrinter << "Http Status:" << status));
 	}
 	//后续全部是content
 	return -1;
diff --git a/src/Http/HttpSession.cpp b/src/Http/HttpSession.cpp
index 29b85dc7..72941d08 100644
--- a/src/Http/HttpSession.cpp
+++ b/src/Http/HttpSession.cpp
@@ -101,6 +101,7 @@ get_mime_type(const char* name) {
 
 
 HttpSession::HttpSession(const Socket::Ptr &pSock) : TcpSession(pSock) {
+    TraceP(this);
 	//设置15秒发送超时时间
 	pSock->setSendTimeOutSecond(15);
 	//起始接收buffer缓存设置为4K，节省内存
@@ -108,7 +109,7 @@ HttpSession::HttpSession(const Socket::Ptr &pSock) : TcpSession(pSock) {
 }
 
 HttpSession::~HttpSession() {
-	//DebugL;
+    TraceP(this);
 }
 
 int64_t HttpSession::onRecvHeader(const char *header,uint64_t len) {
@@ -124,17 +125,16 @@ int64_t HttpSession::onRecvHeader(const char *header,uint64_t len) {
 	string cmd = _parser.Method();
 	auto it = g_mapCmdIndex.find(cmd);
 	if (it == g_mapCmdIndex.end()) {
-		WarnP(this) << cmd;
 		sendResponse("403 Forbidden", makeHttpHeader(true), "");
-		shutdown();
-		return 0;
+        shutdown(SockException(Err_shutdown,StrPrinter << "403 Forbidden:" << cmd));
+        return 0;
 	}
 
 	//默认后面数据不是content而是header
 	int64_t content_len = 0;
 	auto &fun = it->second;
 	if(!(this->*fun)(content_len)){
-		shutdown();
+		shutdown(SockException(Err_shutdown,"Connection: close"));
 	}
 	//清空解析器节省内存
 	_parser.Clear();
@@ -156,9 +156,13 @@ void HttpSession::onRecv(const Buffer::Ptr &pBuf) {
 }
 
 void HttpSession::onError(const SockException& err) {
-//	WarnP(this) << err.what();
-    GET_CONFIG(uint32_t,iFlowThreshold,General::kFlowThreshold);
+    if(_ticker.createdTime() < 10 * 1000){
+        TraceP(this) << err.what();
+    }else{
+        WarnP(this) << err.what();
+    }
 
+    GET_CONFIG(uint32_t,iFlowThreshold,General::kFlowThreshold);
     if(_ui64TotalBytes > iFlowThreshold * 1024){
         NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastFlowReport,
 										   _mediaInfo,
@@ -174,8 +178,7 @@ void HttpSession::onManager() {
 
     if(_ticker.elapsedTime() > keepAliveSec * 1000){
 		//1分钟超时
-//		WarnP(this) <<"HttpSession timeouted!";
-		shutdown();
+		shutdown(SockException(Err_timeout,"session timeouted"));
 	}
 }
 
@@ -233,7 +236,7 @@ inline bool HttpSession::checkLiveFlvStream(){
             //未找到该流
             sendNotFound(bClose);
             if(bClose){
-                shutdown();
+                shutdown(SockException(Err_shutdown,"flv stream not found"));
             }
             return;
         }
@@ -242,7 +245,7 @@ inline bool HttpSession::checkLiveFlvStream(){
             bool authSuccess = err.empty();
             if(!authSuccess){
                 sendResponse("401 Unauthorized", makeHttpHeader(true,err.size()),err);
-                shutdown();
+                shutdown(SockException(Err_shutdown,StrPrinter << "401 Unauthorized:" << err));
                 return ;
             }
 
@@ -258,7 +261,7 @@ inline bool HttpSession::checkLiveFlvStream(){
                 start(getPoller(),rtmp_src);
             }catch (std::exception &ex){
                 //该rtmp源不存在
-                shutdown();
+                shutdown(SockException(Err_shutdown,"rtmp mediasource released"));
             }
         };
 
@@ -446,7 +449,7 @@ inline bool HttpSession::Handle_Req_GET(int64_t &content_len) {
 					strongSelf->send(sendBuf);
 				}
 				if(bClose) {
-					strongSelf->shutdown();
+					strongSelf->shutdown(SockException(Err_shutdown,"read file eof"));
 				}
 				return false;
 			}
@@ -645,7 +648,7 @@ inline bool HttpSession::emitHttpEvent(bool doInvoke){
 			}
 			strongSelf->responseDelay(Origin,bClose,codeOut,headerOut,contentOut);
 			if(bClose){
-				strongSelf->shutdown();
+				strongSelf->shutdown(SockException(Err_shutdown,"Connection: close"));
 			}
 		});
 	};
@@ -657,7 +660,7 @@ inline bool HttpSession::emitHttpEvent(bool doInvoke){
 		invoker("404 Not Found",KeyValue(),"");
 		if(bClose){
 			//close类型，回复完毕，关闭连接
-			shutdown();
+			shutdown(SockException(Err_shutdown,"404 Not Found"));
 		}
 	}
 	return consumed;
@@ -727,7 +730,7 @@ inline bool HttpSession::Handle_Req_POST(int64_t &content_len) {
             }
 
             //连接类型是close类型，收完content就关闭连接
-            shutdown();
+            shutdown(SockException(Err_shutdown,"recv http content completed"));
             //content已经接收完毕
             return false ;
 		};
@@ -763,7 +766,7 @@ void HttpSession::onWrite(const Buffer::Ptr &buffer) {
 }
 
 void HttpSession::onDetach() {
-	shutdown();
+	shutdown(SockException(Err_shutdown,"rtmp ring buffer detached"));
 }
 
 std::shared_ptr<FlvMuxer> HttpSession::getSharedPtr(){
diff --git a/src/Http/HttpSession.h b/src/Http/HttpSession.h
index a3835454..87d69eca 100644
--- a/src/Http/HttpSession.h
+++ b/src/Http/HttpSession.h
@@ -83,13 +83,11 @@ protected:
 										uint64_t len,
 										uint64_t totalSize,
 										uint64_t recvedSize){
-        WarnL << "content数据长度过大，无法处理,请重载HttpSession::onRecvUnlimitedContent";
-        shutdown();
+        shutdown(SockException(Err_shutdown,"http post content is too huge,default closed"));
 	}
 
     void onWebSocketDecodeHeader(const WebSocketHeader &packet) override{
-        DebugL << "默认关闭WebSocket";
-        shutdown();
+        shutdown(SockException(Err_shutdown,"websocket connection default closed"));
     };
 
 	void onRecvWebSocketData(const Parser &header,const char *data,uint64_t len){
diff --git a/src/MediaFile/MediaReader.cpp b/src/MediaFile/MediaReader.cpp
index 59808c41..626d8e2d 100644
--- a/src/MediaFile/MediaReader.cpp
+++ b/src/MediaFile/MediaReader.cpp
@@ -167,15 +167,16 @@ void MediaReader::startReadMP4() {
 	readSample(sampleMS, false);
 	_mediaMuxer->setListener(strongSelf);
 }
- bool MediaReader::seekTo(uint32_t ui32Stamp){
+ bool MediaReader::seekTo(MediaSource &sender,uint32_t ui32Stamp){
 	 seek(ui32Stamp);
 	 return true;
 }
-bool MediaReader::close(bool force){
+bool MediaReader::close(MediaSource &sender,bool force){
     if(!force && _mediaMuxer->readerCount() != 0 ){
         return false;
     }
 	_timer.reset();
+    WarnL << sender.getSchema() << "/" << sender.getVhost() << "/" << sender.getApp() << "/" << sender.getId() << " " << force;
     return true;
 }
 
diff --git a/src/MediaFile/MediaReader.h b/src/MediaFile/MediaReader.h
index 7399844d..cb9d398e 100644
--- a/src/MediaFile/MediaReader.h
+++ b/src/MediaFile/MediaReader.h
@@ -62,13 +62,13 @@ public:
 	 * @param ui32Stamp 偏移量，单位毫秒
 	 * @return
 	 */
-	bool seekTo(uint32_t ui32Stamp) override;
+	bool seekTo(MediaSource &sender,uint32_t ui32Stamp) override;
 
 	/**
 	 * 关闭MediaReader的流化进程，会触发该对象放弃自持有
 	 * @return
 	 */
-	bool close(bool force) override;
+	bool close(MediaSource &sender,bool force) override;
 
 	/**
 	 * 自动生成MediaReader对象然后查找相关的MediaSource对象
diff --git a/src/Player/PlayerProxy.cpp b/src/Player/PlayerProxy.cpp
index 38e306d4..58438471 100644
--- a/src/Player/PlayerProxy.cpp
+++ b/src/Player/PlayerProxy.cpp
@@ -145,7 +145,7 @@ void PlayerProxy::rePlay(const string &strUrl,int iFailedCnt){
 		return false;
 	}, getPoller());
 }
-bool PlayerProxy::close(bool force) {
+bool PlayerProxy::close(MediaSource &sender,bool force) {
     if(!force && _mediaMuxer->readerCount() != 0){
         return false;
     }
@@ -162,6 +162,7 @@ bool PlayerProxy::close(bool force) {
 			}
 		}
 	});
+    WarnL << sender.getSchema() << "/" << sender.getVhost() << "/" << sender.getApp() << "/" << sender.getId() << " " << force;
     return true;
 }
 
diff --git a/src/Player/PlayerProxy.h b/src/Player/PlayerProxy.h
index 8cad05ed..6c25a157 100644
--- a/src/Player/PlayerProxy.h
+++ b/src/Player/PlayerProxy.h
@@ -79,7 +79,7 @@ public:
      * 被主动关闭
      * @return
      */
-    bool close(bool force) override;
+    bool close(MediaSource &sender,bool force) override;
 private:
     void onNoneReader(MediaSource &sender) override;
 	void rePlay(const string &strUrl,int iFailedCnt);
diff --git a/src/Rtmp/RtmpPlayer.cpp b/src/Rtmp/RtmpPlayer.cpp
index 941dc939..cdb72914 100644
--- a/src/Rtmp/RtmpPlayer.cpp
+++ b/src/Rtmp/RtmpPlayer.cpp
@@ -70,7 +70,7 @@ void RtmpPlayer::teardown() {
         CLEAR_ARR(_aiFistStamp);
         CLEAR_ARR(_aiNowStamp);
         reset();
-        shutdown();
+        shutdown(SockException(Err_shutdown,"teardown"));
 	}
 }
 void RtmpPlayer::play(const string &strUrl)  {
diff --git a/src/Rtmp/RtmpPusher.cpp b/src/Rtmp/RtmpPusher.cpp
index abe2ccbe..c4def99f 100644
--- a/src/Rtmp/RtmpPusher.cpp
+++ b/src/Rtmp/RtmpPusher.cpp
@@ -59,7 +59,7 @@ void RtmpPusher::teardown() {
         }
 		_pPublishTimer.reset();
         reset();
-        shutdown();
+        shutdown(SockException(Err_shutdown,"teardown"));
 	}
 }
 
diff --git a/src/Rtmp/RtmpSession.cpp b/src/Rtmp/RtmpSession.cpp
index 8b7a7aa9..7c4120aa 100644
--- a/src/Rtmp/RtmpSession.cpp
+++ b/src/Rtmp/RtmpSession.cpp
@@ -65,15 +65,13 @@ void RtmpSession::onError(const SockException& err) {
 void RtmpSession::onManager() {
 	if (_ticker.createdTime() > 15 * 1000) {
 		if (!_pRingReader && !_pPublisherSrc) {
-			WarnP(this) << "非法链接";
-			shutdown();
+			shutdown(SockException(Err_timeout,"illegal connection"));
 		}
 	}
 	if (_pPublisherSrc) {
 		//publisher
 		if (_ticker.elapsedTime() > 15 * 1000) {
-			WarnP(this) << "数据接收超时";
-			shutdown();
+			shutdown(SockException(Err_timeout,"recv data from rtmp pusher timeout"));
 		}
 	}
 }
@@ -84,8 +82,7 @@ void RtmpSession::onRecv(const Buffer::Ptr &pBuf) {
         _ui64TotalBytes += pBuf->size();
 		onParseRtmp(pBuf->data(), pBuf->size());
 	} catch (exception &e) {
-		WarnP(this) << e.what();
-		shutdown();
+		shutdown(SockException(Err_shutdown,StrPrinter << "catch exception:" << e.what()));
 	}
 }
 
@@ -159,12 +156,11 @@ void RtmpSession::onCmd_publish(AMFDecoder &dec) {
         status.set("clientid", "0");
         sendReply("onStatus", nullptr, status);
         if (!ok) {
-            WarnP(this) << "onPublish:"
-                  << (authSuccess ? "Already publishing:" : err.data()) << " "
-                  << _mediaInfo._vhost << " "
-                  << _mediaInfo._app << " "
-                  << _mediaInfo._streamid << endl;
-            shutdown();
+            string errMsg = StrPrinter << (authSuccess ? "already publishing:" : err.data()) << " "
+                                    << _mediaInfo._vhost << " "
+                                    << _mediaInfo._app << " "
+                                    << _mediaInfo._streamid;
+            shutdown(SockException(Err_shutdown,errMsg));
             return;
         }
         _pPublisherSrc.reset(new RtmpToRtspMediaSource(_mediaInfo._vhost,_mediaInfo._app,_mediaInfo._streamid));
@@ -222,12 +218,11 @@ void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr
     status.set("clientid", "0");
     sendReply("onStatus", nullptr, status);
     if (!ok) {
-        WarnP(this) << (authSuccess ? "No such stream:" : err.data()) << " "
-              << _mediaInfo._vhost << " "
-              << _mediaInfo._app << " "
-              << _mediaInfo._streamid
-              << endl;
-        shutdown();
+        string errMsg = StrPrinter << (authSuccess ? "no such stream:" : err.data()) << " "
+                                 << _mediaInfo._vhost << " "
+                                 << _mediaInfo._app << " "
+                                 << _mediaInfo._streamid;
+        shutdown(SockException(Err_shutdown,errMsg));
         return;
     }
 
@@ -286,7 +281,7 @@ void RtmpSession::sendPlayResponse(const string &err,const RtmpMediaSource::Ptr
         if (!strongSelf) {
             return;
         }
-        strongSelf->shutdown();
+        strongSelf->shutdown(SockException(Err_shutdown,"rtmp ring buffer detached"));
     });
     _pPlayerSrc = src;
     if (src->readerCount() == 1) {
diff --git a/src/Rtmp/RtmpSession.h b/src/Rtmp/RtmpSession.h
index e04ae727..58490c1c 100644
--- a/src/Rtmp/RtmpSession.h
+++ b/src/Rtmp/RtmpSession.h
@@ -81,12 +81,12 @@ private:
 		sendResponse(MSG_CMD, invoke.data());
 	}
 
-    bool close(bool force) override {
+    bool close(MediaSource &sender,bool force) override {
         if(!force && _pPublisherSrc->readerCount() != 0){
             return false;
         }
-        InfoP(this) << "kick out:" << _mediaInfo._vhost << " " << _mediaInfo._app << " " << _mediaInfo._streamid;
-        safeShutdown();
+        string err = StrPrinter << "close media:" << sender.getSchema() << "/" << sender.getVhost() << "/" << sender.getApp() << "/" << sender.getId() << " " << force;
+        safeShutdown(SockException(Err_shutdown,err));
         return true;
     }
 private:
diff --git a/src/Rtsp/RtspPlayer.cpp b/src/Rtsp/RtspPlayer.cpp
index 5b2de918..5f6a14a9 100644
--- a/src/Rtsp/RtspPlayer.cpp
+++ b/src/Rtsp/RtspPlayer.cpp
@@ -51,7 +51,7 @@ RtspPlayer::~RtspPlayer(void) {
 void RtspPlayer::teardown(){
 	if (alive()) {
 		sendRtspRequest("TEARDOWN" ,_strContentBase);
-		shutdown();
+		shutdown(SockException(Err_shutdown,"teardown"));
 	}
 
 	_rtspMd5Nonce.clear();
diff --git a/src/Rtsp/RtspPusher.cpp b/src/Rtsp/RtspPusher.cpp
index 4b96de81..196d8315 100644
--- a/src/Rtsp/RtspPusher.cpp
+++ b/src/Rtsp/RtspPusher.cpp
@@ -25,7 +25,7 @@ RtspPusher::~RtspPusher() {
 void RtspPusher::teardown() {
     if (alive()) {
         sendRtspRequest("TEARDOWN" ,_strContentBase);
-        shutdown();
+        shutdown(SockException(Err_shutdown,"teardown"));
     }
 
     reset();
@@ -329,7 +329,7 @@ inline void RtspPusher::sendRtpPacket(const RtpPacket::Ptr & pkt) {
             int iTrackIndex = getTrackIndexByTrackType(pkt->type);
             auto &pSock = _apUdpSock[iTrackIndex];
             if (!pSock) {
-                shutdown();
+                shutdown(SockException(Err_shutdown,"udp sock not opened yet"));
                 return;
             }
             BufferRtp::Ptr buffer(new BufferRtp(pkt,4));
diff --git a/src/Rtsp/RtspSession.cpp b/src/Rtsp/RtspSession.cpp
index 578976e6..6a7a9f2b 100644
--- a/src/Rtsp/RtspSession.cpp
+++ b/src/Rtsp/RtspSession.cpp
@@ -72,11 +72,11 @@ static recursive_mutex g_mtxGetter;
 static int kSockFlags = SOCKET_DEFAULE_FLAGS | FLAG_MORE;
 
 RtspSession::RtspSession(const Socket::Ptr &pSock) : TcpSession(pSock) {
-	//设置15秒发送超时时间
-	pSock->setSendTimeOutSecond(15);
-	//起始接收buffer缓存设置为4K，节省内存
-	pSock->setReadBuffer(std::make_shared<BufferRaw>(4 * 1024));
-	DebugP(this);
+    DebugP(this);
+    //设置15秒发送超时时间
+    pSock->setSendTimeOutSecond(15);
+    //起始接收buffer缓存设置为4K，节省内存
+    pSock->setReadBuffer(std::make_shared<BufferRaw>(4 * 1024));
 }
 
 RtspSession::~RtspSession() {
@@ -84,7 +84,7 @@ RtspSession::~RtspSession() {
 }
 
 void RtspSession::onError(const SockException& err) {
-	TraceP(this) << err.getErrCode() << " " << err.what();
+	WarnP(this) << err.what();
 	if (_rtpType == Rtsp::RTP_MULTICAST) {
 		//取消UDP端口监听
 		UDPServer::Instance().stopListenPeer(get_peer_ip().data(), this);
@@ -113,8 +113,7 @@ void RtspSession::onError(const SockException& err) {
 void RtspSession::onManager() {
 	if (_ticker.createdTime() > 15 * 1000) {
 		if (_strSession.size() == 0) {
-			WarnP(this) << "非法链接";
-			shutdown();
+			shutdown(SockException(Err_timeout,"illegal connection"));
 			return;
 		}
 	}
@@ -122,9 +121,8 @@ void RtspSession::onManager() {
 
 	if ((_rtpType == Rtsp::RTP_UDP || _pushSrc ) && _ticker.elapsedTime() > 15 * 1000) {
 		//如果是推流端或者rtp over udp类型的播放端，那么就做超时检测
-		WarnP(this) << "RTSP会话超时";
-		shutdown();
-		return;
+        shutdown(SockException(Err_timeout,"rtp over udp session timeouted"));
+        return;
 	}
 }
 
@@ -169,11 +167,10 @@ void RtspSession::onWholeRtspPacket(Parser &parser) {
 	if (it != s_handler_map.end()) {
 		auto &fun = it->second;
 		if(!(this->*fun)(parser)){
-			shutdown();
-		}
+            shutdown(SockException(Err_shutdown,"self close"));
+        }
 	} else{
-		shutdown();
-		WarnP(this) << "不支持的rtsp命令:" << strCmd;
+        shutdown(SockException(Err_shutdown,StrPrinter << "403 Forbidden:" << strCmd));
 	}
 }
 
@@ -252,7 +249,7 @@ bool RtspSession::handleReq_RECORD(const Parser &parser){
 		if(!authSuccess){
 			//第一次play是播放，否则是恢复播放。只对播放鉴权
 			sendRtspResponse("401 Unauthorized", {"Content-Type", "text/plain"}, err);
-			shutdown();
+			shutdown(SockException(Err_shutdown,StrPrinter << "401 Unauthorized:" << err));
 			return;
 		}
 
@@ -260,8 +257,8 @@ bool RtspSession::handleReq_RECORD(const Parser &parser){
 		for(auto &track : _aTrackInfo){
 			if (track->_inited == false) {
 				//还有track没有setup
-				shutdown();
-				return;
+                shutdown(SockException(Err_shutdown,"track not setuped"));
+                return;
 			}
 			rtp_info << "url=" << _strContentBase << "/" << track->_control_surffix << ",";
 		}
@@ -312,9 +309,9 @@ bool RtspSession::handleReq_Describe(const Parser &parser) {
         auto rtsp_src = dynamic_pointer_cast<RtspMediaSource>(src);
         if (!rtsp_src) {
             //未找到相应的MediaSource
-            WarnP(strongSelf.get()) << "No such stream:" <<  strongSelf->_mediaInfo._vhost << " " <<  strongSelf->_mediaInfo._app << " " << strongSelf->_mediaInfo._streamid;
+            string err = StrPrinter << "no such stream:" <<  strongSelf->_mediaInfo._vhost << " " <<  strongSelf->_mediaInfo._app << " " << strongSelf->_mediaInfo._streamid;
             strongSelf->send_StreamNotFound();
-            strongSelf->shutdown();
+            strongSelf->shutdown(SockException(Err_shutdown,err));
             return;
         }
         //找到了响应的rtsp流
@@ -324,7 +321,7 @@ bool RtspSession::handleReq_Describe(const Parser &parser) {
         if (strongSelf->_aTrackInfo.empty()) {
             //该流无效
             strongSelf->send_StreamNotFound();
-            strongSelf->shutdown();
+            strongSelf->shutdown(SockException(Err_shutdown,"can not find any availabe track in sdp"));
             return;
         }
         strongSelf->_strSession = makeRandStr(12);
@@ -664,7 +661,7 @@ bool RtspSession::handleReq_Setup(const Parser &parser) {
 				if(!strongSelf) {
 					return;
 				}
-				strongSelf->safeShutdown();
+				strongSelf->safeShutdown(SockException(Err_shutdown,"ring buffer detached"));
 			});
 		}
 		int iSrvPort = _pBrdcaster->getPort(trackRef->_type);
@@ -707,14 +704,14 @@ bool RtspSession::handleReq_Play(const Parser &parser) {
         if(!authSuccess){
             //第一次play是播放，否则是恢复播放。只对播放鉴权
 			sendRtspResponse("401 Unauthorized", {"Content-Type", "text/plain"}, err);
-            shutdown();
+            shutdown(SockException(Err_shutdown,StrPrinter << "401 Unauthorized:" << err));
             return;
         }
 
         auto pMediaSrc = _pMediaSrc.lock();
         if(!pMediaSrc){
         	send_StreamNotFound();
-        	shutdown();
+        	shutdown(SockException(Err_shutdown,"rtsp stream released"));
 			return;
         }
 
@@ -740,8 +737,8 @@ bool RtspSession::handleReq_Play(const Parser &parser) {
 		for(auto &track : _aTrackInfo){
 			if (track->_inited == false) {
 				//还有track没有setup
-				shutdown();
-				return;
+                shutdown(SockException(Err_shutdown,"track not setuped"));
+                return;
 			}
 			track->_ssrc = pMediaSrc->getSsrc(track->_type);
 			track->_seq = pMediaSrc->getSeqence(track->_type);
@@ -773,8 +770,8 @@ bool RtspSession::handleReq_Play(const Parser &parser) {
 				if(!strongSelf) {
 					return;
 				}
-				strongSelf->shutdown();
-			});
+                strongSelf->shutdown(SockException(Err_shutdown,"rtsp ring buffer detached"));
+            });
 			_pRtpReader->setReadCB([weakSelf](const RtpPacket::Ptr &pack) {
 				auto strongSelf = weakSelf.lock();
 				if(!strongSelf) {
@@ -867,8 +864,7 @@ bool RtspSession::handleReq_Post(const Parser &parser) {
 	_onRecv = [this,httpGetterWeak](const Buffer::Ptr &pBuf){
 		auto httpGetterStrong = httpGetterWeak.lock();
 		if(!httpGetterStrong){
-			WarnP(this) << "Http Getter已经释放";
-			shutdown();
+			shutdown(SockException(Err_shutdown,"http getter released"));
 			return;
 		}
 
@@ -1085,12 +1081,12 @@ inline int RtspSession::getTrackIndexByInterleaved(int interleaved){
 	return -1;
 }
 
-bool RtspSession::close(bool force) {
+bool RtspSession::close(MediaSource &sender,bool force) {
     if(!force && _pushSrc->readerCount() != 0){
         return false;
     }
-	InfoP(this) << "kick out:" << _mediaInfo._vhost << " " << _mediaInfo._app << " " << _mediaInfo._streamid;
-	safeShutdown();
+	string err = StrPrinter << "close media:" << sender.getSchema() << "/" << sender.getVhost() << "/" << sender.getApp() << "/" << sender.getId() << " " << force;
+	safeShutdown(SockException(Err_shutdown,err));
 	return true;
 }
 
@@ -1107,7 +1103,7 @@ inline void RtspSession::sendRtpPacket(const RtpPacket::Ptr & pkt) {
             int iTrackIndex = getTrackIndexByTrackType(pkt->type);
             auto &pSock = _apRtpSock[iTrackIndex];
             if (!pSock) {
-                shutdown();
+                shutdown(SockException(Err_shutdown,"udp sock not opened yet"));
                 return;
             }
             BufferRtp::Ptr buffer(new BufferRtp(pkt,4));
diff --git a/src/Rtsp/RtspSession.h b/src/Rtsp/RtspSession.h
index afd66ab0..10c592c6 100644
--- a/src/Rtsp/RtspSession.h
+++ b/src/Rtsp/RtspSession.h
@@ -105,7 +105,7 @@ protected:
 	//RtpReceiver override
 	void onRtpSorted(const RtpPacket::Ptr &rtppt, int trackidx) override;
 	//MediaSourceEvent override
-	bool close(bool force) override ;
+	bool close(MediaSource &sender,bool force) override ;
 
 	//TcpSession override
     int send(const Buffer::Ptr &pkt) override;
diff --git a/src/Shell/ShellSession.cpp b/src/Shell/ShellSession.cpp
index 500dbad9..7822245c 100644
--- a/src/Shell/ShellSession.cpp
+++ b/src/Shell/ShellSession.cpp
@@ -39,26 +39,26 @@ static onceToken s_token([]() {
 }, nullptr);
 
 ShellSession::ShellSession(const Socket::Ptr &_sock) : TcpSession(_sock) {
+    DebugP(this);
     pleaseInputUser();
 }
 
 ShellSession::~ShellSession() {
+    DebugP(this);
 }
 
 void ShellSession::onRecv(const Buffer::Ptr&buf) {
 	//DebugL << hexdump(buf->data(), buf->size());
     GET_CONFIG(uint32_t,maxReqSize,Shell::kMaxReqSize);
     if (_strRecvBuf.size() + buf->size() >= maxReqSize) {
-		WarnL << "接收缓冲区溢出!";
-		shutdown();
+		shutdown(SockException(Err_other,"recv buffer overflow"));
 		return;
 	}
 	_beatTicker.resetTime();
 	_strRecvBuf.append(buf->data(), buf->size());
 	if (_strRecvBuf.find("\xff\xf4\xff\0xfd\x06") != std::string::npos) {
-		WarnL << "收到Ctrl+C.";
 		send("\033[0m\r\n	Bye bye!\r\n");
-		shutdown();
+		shutdown(SockException(Err_other,"received Ctrl+C"));
 		return;
 	}
 	size_t index;
@@ -67,16 +67,20 @@ void ShellSession::onRecv(const Buffer::Ptr&buf) {
 		line = _strRecvBuf.substr(0, index);
 		_strRecvBuf.erase(0, index + 2);
 		if (!onCommandLine(line)) {
-			shutdown();
+			shutdown(SockException(Err_other,"exit cmd"));
 			return;
 		}
 	}
 }
 
+void ShellSession::onError(const SockException &err){
+    WarnP(this) << err.what();
+}
+
 void ShellSession::onManager() {
 	if (_beatTicker.elapsedTime() > 1000 * 60 * 5) {
 		//5 miniutes for alive
-		shutdown();
+        shutdown(SockException(Err_timeout,"session timeout"));
 		return;
 	}
 }
diff --git a/src/Shell/ShellSession.h b/src/Shell/ShellSession.h
index 95be7792..4c3732ca 100644
--- a/src/Shell/ShellSession.h
+++ b/src/Shell/ShellSession.h
@@ -41,7 +41,7 @@ public:
 	virtual ~ShellSession();
 
 	void onRecv(const Buffer::Ptr &) override;
-    void onError(const SockException &err) override {};
+    void onError(const SockException &err) override;
 	void onManager() override;
 
 private: