diff --git a/HISTORY b/HISTORY
index 52cb95f..68deda8 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,8 +1,9 @@
 
-Version 1.76  2024-11-01
+Version 1.76  2025-01-27
   * get_mounted_filesystems act as program df
   * add function get_statfs_by_path
   * add function is_rotational_device_by_path
+  * conn_pool_get_connection_ex add parameter: shared
 
 Version 1.75  2024-09-22
   * task init callback support extra argument
diff --git a/src/connection_pool.c b/src/connection_pool.c
index b8e8b06..9e6498d 100644
--- a/src/connection_pool.c
+++ b/src/connection_pool.c
@@ -651,7 +651,8 @@ static ConnectionInfo *get_conn(ConnectionPool *cp,
 
 static ConnectionInfo *get_connection(ConnectionPool *cp,
 	const ConnectionInfo *conn, const string_t *key,
-    const uint32_t hash_code, const char *service_name, int *err_no)
+    const uint32_t hash_code, const char *service_name,
+    const bool shared, int *err_no)
 {
     ConnectionBucket *bucket;
 	ConnectionManager *cm;
@@ -662,6 +663,10 @@ static ConnectionInfo *get_connection(ConnectionPool *cp,
     if ((cm=find_manager(cp, bucket, key, true)) != NULL)
     {
         ci = get_conn(cp, cm, &bucket->lock, conn, service_name, err_no);
+        if (ci != NULL)
+        {
+            ci->shared = shared;
+        }
     }
     else
     {
@@ -673,7 +678,8 @@ static ConnectionInfo *get_connection(ConnectionPool *cp,
 }
 
 ConnectionInfo *conn_pool_get_connection_ex(ConnectionPool *cp,
-	const ConnectionInfo *conn, const char *service_name, int *err_no)
+	const ConnectionInfo *conn, const char *service_name,
+    const bool shared, int *err_no)
 {
     string_t key;
     int bytes;
@@ -687,8 +693,9 @@ ConnectionInfo *conn_pool_get_connection_ex(ConnectionPool *cp,
     key.str = key_buff;
     conn_pool_get_key(conn, key.str, &key.len);
     hash_code = fc_simple_hash(key.str, key.len);
-    if (!cp->extra_params.tls.enabled) {
-        return get_connection(cp, conn, &key, hash_code, service_name, err_no);
+    if (!cp->extra_params.tls.enabled || !shared) {
+        return get_connection(cp, conn, &key, hash_code,
+                service_name, shared, err_no);
     }
 
     htable = pthread_getspecific(cp->tls_key);
@@ -729,7 +736,7 @@ ConnectionInfo *conn_pool_get_connection_ex(ConnectionPool *cp,
         return node->conn;
     } else {
         if ((ci=get_connection(cp, conn, &key, hash_code,
-                        service_name, err_no)) == NULL)
+                        service_name, shared, err_no)) == NULL)
         {
             return NULL;
         }
@@ -757,10 +764,11 @@ int conn_pool_close_connection_ex(ConnectionPool *cp,
     key.str = key_buff;
     conn_pool_get_key(conn, key.str, &key.len);
     hash_code = fc_simple_hash(key.str, key.len);
-    if (!cp->extra_params.tls.enabled) {
+    if (!cp->extra_params.tls.enabled || !conn->shared) {
         return close_connection(cp, conn, &key, hash_code, bForce);
     }
 
+    //thread local logic
     if (!bForce) {
         return 0;
     }
diff --git a/src/connection_pool.h b/src/connection_pool.h
index fe436b6..b3f670c 100644
--- a/src/connection_pool.h
+++ b/src/connection_pool.h
@@ -50,7 +50,8 @@ typedef enum {
 typedef struct {
     int sock;
     uint16_t port;
-    short af;  //address family, AF_INET, AF_INET6 or AF_UNSPEC for auto dedect
+    uint8_t af;  //address family, AF_INET, AF_INET6 or AF_UNSPEC for auto dedect
+    bool shared; //for connection pool
     FCCommunicationType comm_type;
     bool validate_flag;   //for connection pool
     char ip_addr[IP_ADDRESS_SIZE];
@@ -299,14 +300,16 @@ void conn_pool_destroy(ConnectionPool *cp);
 *      cp: the ConnectionPool
 *      conn: the connection
 *      service_name: the service name to log
+*      shared: if the connection shared
 *      err_no: return the the errno, 0 for success
 *   return != NULL for success, NULL for error
 */
 ConnectionInfo *conn_pool_get_connection_ex(ConnectionPool *cp,
-	const ConnectionInfo *conn, const char *service_name, int *err_no);
+	const ConnectionInfo *conn, const char *service_name,
+    const bool shared, int *err_no);
 
 #define conn_pool_get_connection(cp, conn, err_no) \
-    conn_pool_get_connection_ex(cp, conn, NULL, err_no)
+    conn_pool_get_connection_ex(cp, conn, NULL, false, err_no)
 
 #define conn_pool_close_connection(cp, conn) \
 	conn_pool_close_connection_ex(cp, conn, false)
diff --git a/src/sockopt.c b/src/sockopt.c
index 4cb59f0..ccdc9f4 100644
--- a/src/sockopt.c
+++ b/src/sockopt.c
@@ -1201,7 +1201,7 @@ char *getHostnameByIp(const char *szIpAddr, char *buff, const int bufferSize)
 }
 
 in_addr_64_t getIpaddrByNameEx(const char *name, char *buff,
-        const int bufferSize, short *af)
+        const int bufferSize, uint8_t *af)
 {
 	struct addrinfo hints, *res, *p;
     struct in_addr  addr4;
diff --git a/src/sockopt.h b/src/sockopt.h
index 0fde8b1..e53ea56 100644
--- a/src/sockopt.h
+++ b/src/sockopt.h
@@ -391,12 +391,12 @@ char *getHostnameByIp(const char *szIpAddr, char *buff, const int bufferSize);
  *  return: in_addr_64_t, INADDR_NONE for fail
 */
 in_addr_64_t getIpaddrByNameEx(const char *name, char *buff,
-        const int bufferSize, short *af);
+        const int bufferSize, uint8_t *af);
 
 static inline in_addr_64_t getIpaddrByName(const char *name,
         char *buff, const int bufferSize)
 {
-    short af;
+    uint8_t af;
     return getIpaddrByNameEx(name, buff, bufferSize, &af);
 }