diff --git a/trunk/src/app/srs_app_http_api.cpp b/trunk/src/app/srs_app_http_api.cpp
index a9e775db5..eb751852d 100644
--- a/trunk/src/app/srs_app_http_api.cpp
+++ b/trunk/src/app/srs_app_http_api.cpp
@@ -26,7 +26,6 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #ifdef SRS_AUTO_HTTP_API
 
 #include <sstream>
-#include <set>
 using namespace std;
 
 #include <srs_kernel_log.hpp>
@@ -522,30 +521,14 @@ bool SrsApiVhosts::can_handle(const char* path, int length, const char** /*pchil
 
 int SrsApiVhosts::do_process_request(SrsStSocket* skt, SrsHttpMessage* req)
 {
+    int ret = ERROR_SUCCESS;
+    
     std::stringstream ss;
     
-    std::set<std::string> vhost_set;
-    std::map<void*, SrsStreamInfo*>* pool = SrsStatistic::instance()->get_pool();
-    std::map<void*, SrsStreamInfo*>::iterator it;
-    for (it = pool->begin(); it != pool->end(); it++) {
-        if (it->second->_req == NULL)
-            continue;
-        vhost_set.insert(it->second->_req->vhost);
+    SrsStatistic* stat = SrsStatistic::instance();
+    if ((ret = stat->dumps_vhosts(ss)) != ERROR_SUCCESS) {
+        return ret;
     }
-
-    ss << __SRS_JARRAY_START;
-    bool first = true;
-    std::set<std::string>::iterator it_set;
-    for (it_set = vhost_set.begin(); it_set != vhost_set.end(); it_set++) {
-        if (first) {
-            first = false;
-        } else {
-            ss << __SRS_JFIELD_CONT;
-        }
-
-        ss << "\"" << (*it_set) << "\"";
-    }
-    ss << __SRS_JARRAY_END;
     
     return res_json(skt, req, ss.str());
 }
@@ -565,40 +548,13 @@ bool SrsApiStreams::can_handle(const char* path, int length, const char** /*pchi
 
 int SrsApiStreams::do_process_request(SrsStSocket* skt, SrsHttpMessage* req)
 {
+    int ret = ERROR_SUCCESS;
+    
     std::stringstream ss;
     
-    std::string query_name = req->query_get("name");
-    std::string query_vhost = req->query_get("vhost");
-    if (query_name.size() > 0 || query_vhost.size() > 0) {
-        ss << __SRS_JARRAY_START;
-        bool first = true;
-        std::map<void*, SrsStreamInfo*>* pool = SrsStatistic::instance()->get_pool();
-        std::map<void*, SrsStreamInfo*>::iterator it;
-        for (it = pool->begin(); it != pool->end(); it++) {
-            SrsRequest* reqinfo = it->second->_req;
-            if (reqinfo == NULL)
-                continue;
-            
-            if (reqinfo->stream == query_name || reqinfo->vhost == query_vhost) {
-                if (first) {
-                    first = false;
-                } else {
-                    ss << __SRS_JFIELD_CONT;
-                }
-
-                ss << __SRS_JOBJECT_START
-                    << __SRS_JFIELD_STR("name", reqinfo->stream) << __SRS_JFIELD_CONT
-                    << __SRS_JFIELD_STR("url", reqinfo->tcUrl) << __SRS_JFIELD_CONT
-                    << __SRS_JFIELD_ORG("clients", 0) << __SRS_JFIELD_CONT
-                    << __SRS_JFIELD_STR("status", "idle") << __SRS_JFIELD_CONT
-                    << __SRS_JFIELD_STR("type", "") << __SRS_JFIELD_CONT
-                    << __SRS_JFIELD_STR("codec", "")
-                    << __SRS_JOBJECT_END;
-            }
-        }
-        ss << __SRS_JARRAY_END;
-    } else {
-        return res_error(skt, req, 400, "Bad Request", "unknown query");
+    SrsStatistic* stat = SrsStatistic::instance();
+    if ((ret = stat->dumps_streams(ss)) != ERROR_SUCCESS) {
+        return ret;
     }
     
     return res_json(skt, req, ss.str());
diff --git a/trunk/src/app/srs_app_rtmp_conn.cpp b/trunk/src/app/srs_app_rtmp_conn.cpp
index 9cac70327..b7bb4d815 100644
--- a/trunk/src/app/srs_app_rtmp_conn.cpp
+++ b/trunk/src/app/srs_app_rtmp_conn.cpp
@@ -396,7 +396,12 @@ int SrsRtmpConn::stream_service_cycle()
     }
     srs_assert(source != NULL);
     
-    SrsStatistic::instance()->add_request_info(source, req);
+    // update the statistic when source disconveried.
+    SrsStatistic* stat = SrsStatistic::instance();
+    if ((ret = stat->on_client(_srs_context->get_id(), req)) != ERROR_SUCCESS) {
+        srs_error("stat client failed. ret=%d", ret);
+        return ret;
+    }
 
     // check ASAP, to fail it faster if invalid.
     if (type != SrsRtmpConnPlay && !vhost_is_edge) {
diff --git a/trunk/src/app/srs_app_statistic.cpp b/trunk/src/app/srs_app_statistic.cpp
index 331672adb..7b5c60944 100644
--- a/trunk/src/app/srs_app_statistic.cpp
+++ b/trunk/src/app/srs_app_statistic.cpp
@@ -25,17 +25,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_protocol_rtmp.hpp>
 
-SrsStreamInfo::SrsStreamInfo()
-{
-    _req = NULL;
-}
-
-SrsStreamInfo::~SrsStreamInfo()
-{
-    srs_freep(_req);
-}
-
-SrsStatistic* SrsStatistic::_instance = NULL;
+SrsStatistic* SrsStatistic::_instance = new SrsStatistic();
 
 SrsStatistic::SrsStatistic()
 {
@@ -43,43 +33,48 @@ SrsStatistic::SrsStatistic()
 
 SrsStatistic::~SrsStatistic()
 {
-    std::map<void*, SrsStreamInfo*>::iterator it;
-    for (it = pool.begin(); it != pool.end(); it++) {
-        SrsStreamInfo* si = it->second;
-        srs_freep(si);
+    if (true) {
+        std::map<std::string, SrsStatisticVhost*>::iterator it;
+        for (it = vhosts.begin(); it != vhosts.end(); it++) {
+            SrsStatisticVhost* vhost = it->second;
+            srs_freep(vhost);
+        }
+    }
+    if (true) {
+        std::map<std::string, SrsStatisticStream*>::iterator it;
+        for (it = streams.begin(); it != streams.end(); it++) {
+            SrsStatisticStream* stream = it->second;
+            srs_freep(stream);
+        }
+    }
+    if (true) {
+        std::map<int, SrsStatisticClient*>::iterator it;
+        for (it = clients.begin(); it != clients.end(); it++) {
+            SrsStatisticClient* client = it->second;
+            srs_freep(client);
+        }
     }
 }
 
 SrsStatistic* SrsStatistic::instance()
 {
-    if (_instance == NULL) {
-        _instance = new SrsStatistic();
-    }
     return _instance;
 }
 
-std::map<void*, SrsStreamInfo*>* SrsStatistic::get_pool()
+int SrsStatistic::on_client(int id, SrsRequest *req)
 {
-    return &pool;
+    int ret = ERROR_SUCCESS;
+    return ret;
 }
 
-SrsStreamInfo* SrsStatistic::get(void *p)
+int SrsStatistic::dumps_vhosts(std::stringstream& ss)
 {
-    std::map<void*, SrsStreamInfo*>::iterator it = pool.find(p);
-    if (it == pool.end()) {
-        SrsStreamInfo* si = new SrsStreamInfo();
-        pool[p] = si;
-        return si;
-    } else {
-        SrsStreamInfo* si = it->second;
-        return si;
-    }
+    int ret = ERROR_SUCCESS;
+    return ret;
 }
 
-void SrsStatistic::add_request_info(void *p, SrsRequest *req)
+int SrsStatistic::dumps_streams(std::stringstream& ss)
 {
-    SrsStreamInfo* info = get(p);
-    if (info->_req == NULL) {
-        info->_req = req->copy();
-    }
-}
\ No newline at end of file
+    int ret = ERROR_SUCCESS;
+    return ret;
+}
diff --git a/trunk/src/app/srs_app_statistic.hpp b/trunk/src/app/srs_app_statistic.hpp
index 41cbbeace..e7ec72ed6 100644
--- a/trunk/src/app/srs_app_statistic.hpp
+++ b/trunk/src/app/srs_app_statistic.hpp
@@ -31,33 +31,62 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_core.hpp>
 
 #include <map>
+#include <string>
 
 class SrsRequest;
 
-class SrsStreamInfo
+struct SrsStatisticVhost
 {
 public:
-    SrsStreamInfo();
-    virtual ~SrsStreamInfo();
+    std::string vhost;
+};
+
+struct SrsStatisticStream
+{
 public:
-    SrsRequest *_req;
+    SrsStatisticVhost* vhost;
+    std::string app;
+    std::string stream;
+};
+
+struct SrsStatisticClient
+{
+public:
+    SrsStatisticStream* stream;
+    int id;
 };
 
 class SrsStatistic
 {
-public:
-    static SrsStatistic* instance();
-public:
-    virtual std::map<void*, SrsStreamInfo*>* get_pool();
-    virtual void add_request_info(void *p, SrsRequest *req);
+private:
+    static SrsStatistic *_instance;
+    // key: vhost name, value: vhost object.
+    std::map<std::string, SrsStatisticVhost*> vhosts;
+    // key: stream name, value: stream object.
+    std::map<std::string, SrsStatisticStream*> streams;
+    // key: client id, value: stream object.
+    std::map<int, SrsStatisticClient*> clients;
 private:
     SrsStatistic();
     virtual ~SrsStatistic();
-private:
-    static SrsStatistic *_instance;
-    std::map<void*, SrsStreamInfo*> pool;
-private:
-    virtual SrsStreamInfo *get(void *p);
+public:
+    static SrsStatistic* instance();
+public:
+    /**
+    * when got a client to publish/play stream,
+    * @param id, the client srs id.
+    * @param req, the client request object.
+    */
+    virtual int on_client(int id, SrsRequest *req);
+public:
+    /**
+    * dumps the vhosts to sstream in json.
+    */
+    virtual int dumps_vhosts(std::stringstream& ss);
+    /**
+    * dumps the streams to sstream in json.
+    */
+    virtual int dumps_streams(std::stringstream& ss);
 };
 
 #endif