数据库可以正常连接 [root@localhost ~]# mysql -uroot -p Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1 Server version: 5.6.21-70.1 Percona Server (GPL), Release 70.1, Revision 698
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mysql> show global variables like '%double%'; +--------------------+-------+ | Variable_name | Value | +--------------------+-------+ | innodb_doublewrite | ON | +--------------------+-------+ 1 row in set (0.00 sec)