Table 'performance_schema.session_variables' doesn't exist

Question

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

Answer 1

Follow these steps without -p :

1. mysql_upgrade -u root
2. systemctl restart mysqld

I had the same problem and it works!

Answer 2

I was able to log on to the mysql server after running the command @robregonm suggested:

mysql_upgrade -u root -p --force

A MySQL server restart is required.

Answer 3

mysql -u app -p
mysql> set @@global.show_compatibility_56=ON;

as per http://bugs.mysql.com/bug.php?id=78159 worked for me.

Answer 4

As sixty4bit question, if your mysql root user looks to be misconfigured, try to install the configurator extension from mysql official source:

https://dev.mysql.com/downloads/repo/apt/

It will help you to set up a new root user password.

Make sure to update your repository (debian/ubuntu) :

apt-get update

Answer 5

If, while using the mysql_upgrade -u root -p --force command You get this error:

Could not create the upgrade info file '/var/lib/mysql/mysql_upgrade_info' in the MySQL Servers datadir, errno: 13

just add the sudo before the command. That worked for me, and I solved my problem. So, it's: sudo mysql_upgrade -u root -p --force :)

Answer 6

For my system the problem ended up being that I still had Mysql 5.6 installed and so the mysql_upgrade.exe from that installation was being called instead of the one for 5.7. Navigate to C:\Program Files\MySQL\MySQL Server 5.7\bin and run .\mysql_upgrade.exe -u root