Uncaught error with message 'SQLSTATE[HY000] [1040] Too many connections'

/usr/local/www/html/wind/db/WindConnection.php:115

• 110: * 返回数据库链接对象
• 111: *
• 112: * @return AbstractWindPdoAdapter
• 113: */
• 114: public function getDbHandle() {
• 115: $this->init();
• 116: return $this->_dbHandle;
• 117: }
• 118:
• 119: /**

__Stack:

• #16 /usr/local/www/html/wind/db/WindConnection.php (115) init()
• #15 /usr/local/www/html/wind/db/WindSqlStatement.php (297) getDbHandle()
• #14 /usr/local/www/html/wind/db/WindConnection.php (105) setQueryString("SELECT * FROM pw_ip_ban WHERE IP = '18.118.198.191'")
• #13 /usr/local/www/html/src/service/user/dao/PwIPBanDao.php (28) createStatement("SELECT * FROM pw_ip_ban WHERE IP = '18.118.198.191'")
• #12 /usr/local/www/html/src/phpwind.php (87) checkBan("18.118.198.191")
• #11 /usr/local/www/html/src/phpwind.php (68) _getLoginUser()
• #10 /usr/local/www/html/src/phpwind.php (129) getLoginUser()
• #09 /usr/local/www/html/src/phpwind.php (41) _initUser()
• #08 /usr/local/www/html/src/wekit.php (76) init()
• #07 /usr/local/www/html/src/library/compile/PwFrontFilters.php (37) createapp("phpwind")
• #06 ~Internal Location~ (N/A) preHandle([Instance of 'WindWebFrontController'])
• #05 /usr/local/www/html/wind/filter/WindHandlerInterceptor.php (59) call_user_func_array(Array,Array)
• #04 /usr/local/www/html/wind/base/AbstractWindFrontController.php (186) handle([Instance of 'WindWebFrontController'])
• #03 /usr/local/www/html/wind/base/AbstractWindFrontController.php (203) startApplication()
• #02 /usr/local/www/html/src/wekit.php (33) run()
• #01 /usr/local/www/html/read.php (5) run("phpwind")