diff --git a/Platform/common/rpc/rpc_thread.h b/Platform/common/rpc/rpc_thread.h
index d5f62e8db..8455ad8ae 100755
--- a/Platform/common/rpc/rpc_thread.h
+++ b/Platform/common/rpc/rpc_thread.h
@@ -16,7 +16,7 @@
 #include <pthread.h>
 #include <ev.h>
 
-#define CLIENT_CONN_NUM 3
+#define CLIENT_CONN_NUM 1
 
 struct _rpc_dispatch_thread {
 	pthread_t thread_id;
diff --git a/Platform/user/rpc/rpc_client.c b/Platform/user/rpc/rpc_client.c
index 23c9224d0..285371524 100755
--- a/Platform/user/rpc/rpc_client.c
+++ b/Platform/user/rpc/rpc_client.c
@@ -224,6 +224,8 @@ ret_code rpc_client_call_async(rpc_client* client, char* service_name,
 	conn = (rpc_conn*) rpc_array_index(th->req_conns, idx);
 	th->last_conn = idx;
 
+    rpc_log_dbg("rpc_client_call_async:send_message\n");
+
 	//write data
 	rpc_request_format(req, conn);
 	rpc_send_message(conn);
diff --git a/Platform/user/rpc/rpc_conn.c b/Platform/user/rpc/rpc_conn.c
index 09fa3b8b6..6e9199b15 100755
--- a/Platform/user/rpc/rpc_conn.c
+++ b/Platform/user/rpc/rpc_conn.c
@@ -407,6 +407,7 @@ static inline void rpc_send_response(rpc_conn *conn, ret_code code,
 	if (output) {
 		rpc_conn_addiov(conn, output, output_len);
 	}
+    rpc_log_dbg("rpc_send_response: %s\n", data);
 	rpc_send_message(conn);
 }
 
diff --git a/Platform/user/rpc/rpc_request.c b/Platform/user/rpc/rpc_request.c
index 22f6f6c7c..2ba7d4374 100755
--- a/Platform/user/rpc/rpc_request.c
+++ b/Platform/user/rpc/rpc_request.c
@@ -174,6 +174,8 @@ void rpc_request_format(const rpc_request *request, rpc_conn *c) {
 	//body len
 	data = rpc_vsprintf("body-len:%d\n\n", request->input_len);
 	rpc_conn_addiov(c, data, strlen(data));
+    
+    rpc_log_dbg("request data:%s\n", data);
 	//body
 	if (request->input)
 		rpc_conn_addiov(c, request->input, request->input_len);
diff --git a/Platform/user/rpc/rpc_thread.c b/Platform/user/rpc/rpc_thread.c
index 7e10ac597..f1cae7460 100755
--- a/Platform/user/rpc/rpc_thread.c
+++ b/Platform/user/rpc/rpc_thread.c
@@ -316,6 +316,8 @@ static void* thread_write_hander(void* data) {
 		idx = (th->last_conn + 1) % (th->req_conn_count);
 		conn = (rpc_conn*) rpc_array_index(th->req_conns, idx);
 		th->last_conn = idx;
+        
+        rpc_log_dbg("thread_write_hander:send_message\n");
 
 		//write data
 		rpc_request_format(req, conn);
@@ -326,11 +328,13 @@ static void* thread_write_hander(void* data) {
 
 static void* thread_client_handler(void* data) {
 	rpc_client_thread *th = data;
-	pthread_mutex_t mutex = th->client->mutex;
-	pthread_mutex_lock(&mutex);
+    
+	//pthread_mutex_t mutex = th->client->mutex;
+    
+	pthread_mutex_lock(&(th->client->mutex);
 	th->client->init_count++;
 	pthread_cond_signal(&(th->client->cond));
-	pthread_mutex_unlock(&mutex);
+	pthread_mutex_unlock(&(th->client->mutex);
 	th->thread_receive_id = pthread_self();
 	ev_run(th->loop, 0);
 	return NULL;