MYSQL 帮助:A.2.3 Client does not support authentication protocol MySQL 4.1 and up uses an authentication protocol based on a password hashing algorithm that is incompatible with that used by older clients. If you upgrade the server to 4.1, attempts to connect to it with an older client may fail with the following message: shell mysqlClient does not support authentication pr...[ 查看全文 ]
解决方法是修改/etc/mysql/my.cnf,添加以下一行: set-variable = max_connections=500 或在启动命令中加上参数 max_connections=500 就是修改最大连接数,然后重启mysql.默认的连接数是100,太少了,所以容易出现如题错误. 以下是mysql.com网站的相关说明: If you get a Too many connections error when you try to connect to the mysqld server, this means that all available connections are in use ...[ 查看全文 ]