Rejoin a MySQL node

Rejoin a MySQL node

The MySQL Galera cluster contains three nodes. If one node fails, the MySQL database does not have an outage. Solve the problem by restarting the mysql service on the failed node. If the node cannot be rejoined to the cluster after restart, remove the following files from the /var/lib/mysql/ directory and restart the mysql service again:

rm -rf /var/lib/mysql/grastate*
rm -rf /var/lib/mysql/ib_log*
service mysql start