Thanks Geoff, I never would have though of this without your mentioning it.
Unless I think there might be defects in my tables, do you think there's a
need to run mysql_upgrade for 10.0.15 -> .19?
Tom
From: Geoff Montee
Can I upgrade a production cluster from 10.0.15 to 10.0.19 while the cluster remains in service, upgrading one node at a time?
Yes, you can do this. If you plan to run mysql_upgrade on each node after upgrading, you may want to set wsrep_OSU_method to RSU before doing so. I think this is especially important for this upgrade, since mysql_upgrade in 10.0.19 calls REPAIR VIEW. That statement doesn't exist in 10.0.15. http://galeracluster.com/documentation-webpages/mysqlwsrepoptions.html#wsrep -osu-method https://mariadb.com/kb/en/mariadb/repair-view/ e.g.: service mysql stop yum update MariaDB-Galera-server MariaDB-client MariaDB-devel MariaDB-shared galera-3 service mysql start mysql --execute="SET GLOBAL wsrep_OSU_method=RSU;" mysql_upgrade mysql --execute="SET GLOBAL wsrep_OSU_method=TOI;" Geoff