(1)服务器端
解决问题:mysql 1040 too many connections(亲测有用)
https://blog.csdn.net/smd2575624555/article/details/86010183
https://blog.csdn.net/u011877584/article/details/78298081
(2)使用python连接mysql出现的问题
mysql报错:2003, "Can't connect to MySQL server on ' ' [Errno 99] Cannot assign requested address 解决方法
https://blog.csdn.net/hty46565/article/details/103499739
参数调优
http://www.mamicode.com/info-detail-1144166.html
https://www.cnblogs.com/djiankuo/p/5956606.html
https://blog.csdn.net/li_101357/article/details/78415461
https://www.cnblogs.com/zengkefu/p/5635088.html
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