diff --git a/trunk/src/app/srs_app_rtmp_conn.cpp b/trunk/src/app/srs_app_rtmp_conn.cpp
index 9881e4e01..e9f9e429a 100644
--- a/trunk/src/app/srs_app_rtmp_conn.cpp
+++ b/trunk/src/app/srs_app_rtmp_conn.cpp
@@ -200,6 +200,7 @@ int SrsRtmpConn::do_cycle()
     
     ret = service_cycle();
     http_hooks_on_close();
+    SrsStatistic::instance()->on_close(_srs_context->get_id());
     
     return ret;
 }
@@ -398,8 +399,7 @@ int SrsRtmpConn::stream_service_cycle()
     
     // update the statistic when source disconveried.
     SrsStatistic* stat = SrsStatistic::instance();
-    int client_id = _srs_context->get_id();
-    if ((ret = stat->on_client(client_id, req)) != ERROR_SUCCESS) {
+    if ((ret = stat->on_client(_srs_context->get_id(), req)) != ERROR_SUCCESS) {
         srs_error("stat client failed. ret=%d", ret);
         return ret;
     }
@@ -446,15 +446,9 @@ int SrsRtmpConn::stream_service_cycle()
                 return ret;
             }
             
-            if ((ret = stat->on_client_play_start(client_id)) != ERROR_SUCCESS) {
-                srs_error("stat client play start failed. ret=%d", ret);
-                return ret;
-            }
-
             srs_info("start to play stream %s success", req->stream.c_str());
             ret = playing(source);
             http_hooks_on_stop();
-            stat->on_client_play_stop(client_id);
             
             return ret;
         }
diff --git a/trunk/src/app/srs_app_statistic.cpp b/trunk/src/app/srs_app_statistic.cpp
index f03b78fbc..49eef587f 100644
--- a/trunk/src/app/srs_app_statistic.cpp
+++ b/trunk/src/app/srs_app_statistic.cpp
@@ -50,7 +50,6 @@ SrsStatisticStream::SrsStatisticStream()
 {
     id = __srs_generate_id();
     vhost = NULL;
-    clients = 0;
 }
 
 SrsStatisticStream::~SrsStatisticStream()
@@ -133,30 +132,22 @@ int SrsStatistic::on_client(int id, SrsRequest* req)
         client = clients[id];
     }
     
+    stream->clients[id] = client;
+
     return ret;
 }
 
-int SrsStatistic::on_client_play_start(int id)
+int SrsStatistic::on_close(int id)
 {
     int ret = ERROR_SUCCESS;
 
     std::map<int, SrsStatisticClient*>::iterator it;
     it = clients.find(id);
     if (it != clients.end()) {
-        it->second->stream->clients++;
-    }
-
-    return ret;
-}
-
-int SrsStatistic::on_client_play_stop(int id)
-{
-    int ret = ERROR_SUCCESS;
-
-    std::map<int, SrsStatisticClient*>::iterator it;
-    it = clients.find(id);
-    if (it != clients.end()) {
-        it->second->stream->clients--;
+        SrsStatisticClient* client = it->second;
+        client->stream->clients.erase(id);
+        srs_freep(client);
+        clients.erase(it);
     }
 
     return ret;
@@ -172,13 +163,10 @@ int SrsStatistic::dumps_vhosts(stringstream& ss)
     int ret = ERROR_SUCCESS;
 
     ss << __SRS_JARRAY_START;
-    bool first = true;
     std::map<std::string, SrsStatisticVhost*>::iterator it;
     for (it = vhosts.begin(); it != vhosts.end(); it++) {
         SrsStatisticVhost* vhost = it->second;
-        if (first) {
-            first = false;
-        } else {
+        if (it != vhosts.begin()) {
             ss << __SRS_JFIELD_CONT;
         }
 
@@ -197,13 +185,10 @@ int SrsStatistic::dumps_streams(stringstream& ss)
     int ret = ERROR_SUCCESS;
     
     ss << __SRS_JARRAY_START;
-    bool first = true;
     std::map<std::string, SrsStatisticStream*>::iterator it;
     for (it = streams.begin(); it != streams.end(); it++) {
         SrsStatisticStream* stream = it->second;
-        if (first) {
-            first = false;
-        } else {
+        if (it != streams.begin()) {
             ss << __SRS_JFIELD_CONT;
         }
 
@@ -211,7 +196,7 @@ int SrsStatistic::dumps_streams(stringstream& ss)
                 << __SRS_JFIELD_ORG("id", stream->id) << __SRS_JFIELD_CONT
                 << __SRS_JFIELD_STR("name", stream->stream) << __SRS_JFIELD_CONT
                 << __SRS_JFIELD_ORG("vhost", stream->vhost->id) << __SRS_JFIELD_CONT
-                << __SRS_JFIELD_ORG("clients", stream->clients)
+                << __SRS_JFIELD_ORG("clients", stream->clients.size())
             << __SRS_JOBJECT_END;
     }
     ss << __SRS_JARRAY_END;
diff --git a/trunk/src/app/srs_app_statistic.hpp b/trunk/src/app/srs_app_statistic.hpp
index 452254bde..0d380549d 100644
--- a/trunk/src/app/srs_app_statistic.hpp
+++ b/trunk/src/app/srs_app_statistic.hpp
@@ -34,6 +34,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <string>
 
 class SrsRequest;
+struct SrsStatisticClient;
 
 struct SrsStatisticVhost
 {
@@ -53,7 +54,7 @@ public:
     std::string app;
     std::string stream;
     std::string url;
-    int64_t clients;
+    std::map<int, SrsStatisticClient*> clients;
 public:
     SrsStatisticStream();
     virtual ~SrsStatisticStream();
@@ -91,13 +92,9 @@ public:
     */
     virtual int on_client(int id, SrsRequest* req);
     /**
-    * client start play
+    * client close
     */
-    virtual int on_client_play_start(int id);
-    /**
-    * client stop play
-    */
-    virtual int on_client_play_stop(int id);
+    virtual int on_close(int id);
 public:
     /**
     * get the server id, used to identify the server.