Table 'performance_schema.session_variables' doesn't exist

遇到问题:

After upgrading MySQL to 5.7.8-rc and loging to server I got error:

Table 'performance_schema.session_variables' doesn't exist
I can't find any solution for this. Can you help ?

　　

解决方法:

The mysql_upgrade worked for me as well:

# mysql_upgrade -u root -p --force
# systemctl restart mysqld