问题：mysql5.7错误：[Err] 1146 - Table 'performance_schema.session_status' doesn't exist
解决：运行mysql_upgrade
方法：
cd /etc/mysql
mysql_upgrade -uroot -p --force
sudo service mysql restart
注意：如果不重新启动mysql会报错：ERROR 1682 (HY000): Native table 'performance_schema'.'session_variables' has the wrong structure
参考：
http://blog.csdn.net/qq_22642239/article/details/59513956
http://blog.csdn.net/u011726984/article/details/50650299