.. _upgrading-a-cluster: ******************* Upgrading a cluster ******************* Here are the steps for upgrading a cluster, i.e. two XiVO with :ref:`high-availability`: #. On the master : deactivate the database replication by commenting the cron in :file:`/etc/cron.d/xivo-ha-master` #. On the slave, deactivate the xivo-check-master-status script cronjob by commenting the line in :file:`/etc/cron.d/xivo-ha-slave` #. On the slave, start the upgrade:: xivo-slave:~$ xivo-upgrade #. When the slave has finished, start the upgrade on the master:: xivo-master:~$ xivo-upgrade #. When done, launch the database replication manually:: xivo-master:~$ xivo-master-slave-db-replication #. Reactivate the cronjobs (see steps 1 and 2)