XtraDBCluster 1 Node Crash

This is how can I solve the problem.

[ERROR] Incorrect definition of table performance_schema.session_variables:

service mysql stop
ps aux | grep mysql
--if it doesnt work db doesn't stop 

/etc/init.d/mysql status

--first kill the mysql services
ps aux | grep mysql

kill -9 UID --mysql ID's

-- MYSQL STOP CLEARLY THAN START THE MYSQL BELOW METHOD

"mysqld --skip-grant-tables --user=mysql --wsrep-provider='none'
ps aux | grep mysql"

-- CHECH IT AN THAN

mysql_upgrade 

--YOU MAY GET A mysql_upgrade: Got error: 2002: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) while connecting to the MySQL server error
--wait finish the mysql activating then try again

mysql_upgrade 

--after finish mysql_upgrade

--stop the mysqld wresp=none than restart the mysql normally 

select * from performance_schema.session_variables; 

--check this query