The Ultimate Guide to High Availability with MariaDB

Comments - Upgrading from MariaDB Galera Cluster 10.0 to MariaDB 10.1 with Galera Cluster

4 years, 8 months ago Claudio Kuenzler
Re: Upgrading from MariaDB Galera Cluster 10.0 to MariaDB 10.1 with Galera Cluster

Following the upgrade procedure step by step I cam across an issue on Ubuntu (and therefore also Debian): The installation of the new packages will automatically start MariaDB. At that point the configs in /etc/mysql/* were not adjusted. To better handle this, it should be noted that automatic daemon starts should be rpevented. A quick and easy way to do is is by using the policy-rc.d:

tee /usr/sbin/policy-rc.d <<EOF
!/bin/sh exit 101 
EOF 

chmod +x /usr/sbin/policy-rc.d

Once the installation of the packages is done, the configs can be adjusted and then MariaDB can be started as outlined in the guide. Afterwards /usr/sbin/policy-rc.d can be removed again.

It should also be noted that mysql_upgrade is not really necessary on default Ubuntu/Debian systems as the included /etc/mysql/debian-start script already does a mysql_upgrade during startup.

 
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