今天早上一个朋友找到了我，说他们备份失败了，使用的版本为MySQL 5.7.15报错信息如下：mysqldump: Couldn't execute 'SAVEPOINT sp': The MySQL server is running with the --transacti
现象：程序会不定时的出现连接错误，问题bug的异常信息如下：The last packet successfully received from the server was 116 milliseconds ago. The last packet sent successfully to the server was 115 milliseconds ago.java.sql.SQ
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