I would also recommend setting wsrep_OSU_method to RSU before running mysql_upgrade on each node. Honestly I don't normally run mysql_upgrade for minor version changes, but I probably should and the docs do recommend doing so: https://mariadb.com/kb/en/mariadb/mysql_upgrade/. With the ability for zero downtime upgrades their isn't really any reason not to and I will in the future. Bryan
On Jun 19, 2015, at 3:34 PM, Tom Worster <fsb@thefsb.org> wrote:
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 <geoff.montee@gmail.com> Date: Friday, June 19, 2015 at 1:22 PM To: Tom Worster <fsb@thefsb.org> Cc: maria-discuss email list <maria-discuss@lists.launchpad.net> Subject: Re: [Maria-discuss] Upgrading mariadb-galera-server
Hi Tom,
On Fri, Jun 19, 2015 at 9:55 AM, Tom Worster <fsb@thefsb.org> wrote: 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...
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
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