title: Mysql error on debian 8 after import .sql
body: <p>I have a big problem with my mysql I already reinstall the machine 3 times, always the same error.
  I've switched from debian 7 to 8 so I use mysqldump to export my database (8Giga) and import it, since import is here the error I get</p>
  
  <pre><code>    mysql.service - LSB: Start and stop the mysql database server daemon
     Loaded: loaded (/etc/init.d/mysql)
     Active: active (running) since lun. 2017-07-17 13:18:35 CEST; 1s ago
    Process: 11765 ExecStop=/etc/init.d/mysql stop (code=exited, status=1/FAILURE)
    Process: 11690 ExecReload=/etc/init.d/mysql reload (code=exited, status=1/FAILURE)
    Process: 11854 ExecStart=/etc/init.d/mysql start (code=exited, status=0/SUCCESS)
     CGroup: /system.slice/mysql.service
             ├─10797 /bin/sh /usr/bin/mysqld_safe
             └─11179 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib/mysql/plugin --user=mysql --log-error=/var/log/mysql/error.log --pid-file=/v...
  
  juil. 17 13:18:35 WorldCube.fr mysql[11854]: Starting MySQL database server: mysqld already running.
  juil. 17 13:18:35 WorldCube.fr systemd[1]: Started LSB: Start and stop the mysql database server daemon.
  </code></pre>