Once Corosync is running, you are able to start the Pacemaker cluster resource manager on all cluster nodes:

service pacemaker start

Once cluster startup is completed, you should see output similar to the following when invoking the crm_mon utility:

============
Last updated: Mon Dec  3 15:37:59 2012
Last change …

If MySQL happens to die in your cluster, Pacemaker will automatically recover the service in place. To test this, select any node on your cluster and send the mysqld process a KILL signal:

killall -KILL mysqld

Then, monitor your cluster status with crm_mon -rf. After a few seconds, you should …

This is a tutorial that Yves Trudeau and I presented at the Percona Live UK 2012 conference in London. It covers Pacemaker integration with DRBD, MySQL Replication, and Galera.

My Pacemaker presentation from the GlusterFS Workshop at LinuxCon Europe 2012. Presented in Barcelona in November of 2012, this is a overview of integrating GlusterFS with the Pacemaker cluster stack.

This tutorial gives an overview of

• The Pacemaker stack,
• Using GlusterFS for Pacemaker storage,
• Managing GlusterFS volumes from Pacemaker.

My …

My Ceph tutorial from LinuxCon Europe 2012. Presented in Barcelona in November of 2012, this is a dense summary of the features of the Ceph distributed storage stack.

This tutorial gives an overview of

• Native RADOS object storage,
• The RBD block device,
• ReSTful object storage with radosgw,
• the Ceph distributed …