/// <summary>
        /// Delete cache by regex pattern
        /// </summary>
        /// <param name="dbid"></param>
        /// <param name="_pattern"></param>
        public static void DeleteKeys(string _pattern, int dbid = -1)
        {
            try
            {
                if (dbid == -1)
                {
                    dbid = DbId;
                }

                lock (LogSetConnection)
                {
                    RedisStackExchangeClient.DeleteKeys(dbid, _pattern);
                }
            }
            catch (Exception ex)
            {
                throw new RedisException();
            }
        }