Too many connections

FILE: /alidata/www/phpwind/ThinkPHP/Lib/Core/Db.class.php 　LINE: 146

[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/Db.class.php (146) DbMysql->connect()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (98) Db->initConnect()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Driver/Db/DbMysql.class.php (225) DbMysql->query(SHOW COLUMNS FROM `tjm_module`)
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/Model.class.php (136) DbMysql->getFields(tjm_module)
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/Model.class.php (124) Model->flush()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/Model.class.php (1193) Model->_checkTableInfo()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/Model.class.php (99) Model->db(0, )
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Common/common.php (302) Model->__construct(Module, , )
[20-01-30 02:31:01] /alidata/www/phpwind/Home/Lib/Action/BaseAction.class.php (9) M(Module)
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/Action.class.php (58) BaseAction->_initialize()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Common/common.php (330) Action->__construct()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/App.class.php (105) A(Article)
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/App.class.php (209) App::exec()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Lib/Core/Think.class.php (40) App::run()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/Common/runtime.php (229) Think::start()
[20-01-30 02:31:01] /alidata/www/phpwind/ThinkPHP/ThinkPHP.php (32) require(/alidata/www/phpwind/ThinkPHP/Common/runtime.php)
[20-01-30 02:31:01] /alidata/www/phpwind/index.php (9) require(/alidata/www/phpwind/ThinkPHP/ThinkPHP.php)