Top 1：Too many connections（连接数过多，导致连接不上数据库，业务无法正常进行） 问题还原 mysql> show variables like '%max_connection%';| Variable_name | Value |max_connections | 151 | mysql> set global max_connections=1;
报错1：Unable to read local eventlog (reason: 事件日志文件已在读取间更改。 报错2：Successfully re-opened the local eventlog - NOTE: Some events may have been missed. 微软解释： http://support.microsoft.com/default.a 报错1：Unabl
