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This blog is about the development of my various Linux based web sites, starting with raspberrywebserver.com, Banoffee Pi Server and Linux Web Servers.
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Setting up Ganglia on three small clusters

Posted 11-10-2014 at 08:52 AM by Pyplate
Updated 11-10-2014 at 08:57 AM by Pyplate

I've been studying clusters using Banana Pi boards, and I've got as far as developing a cluster of MySQL servers, a cluster using GlusterFS and a web server cluster.

At the moment the server cluster is operating on its own. Each node contains a copy of the Pyplate CMS with its own instance of an SQLite database. The next step is it to make all three clusters work together. I've updated Pyplate so that I can use MySQL instead of SQLite, and I've imported a Pyplate database into the database cluster.

Over the last few days I've set up Ganglia monitoring tools on the Gluster cluster and the MySQL cluster. I set up a third cluster consisting of the Ganglia master node, and a another Banana Pi that I've been using to manage the web cluster. I installed Ganglia-monitor on each node, and I installed the web front-end on the master node. Ganglia uses different ports to connect to monitors on different clusters. I set up the database cluster on port 8650, the storage cluster on port 8656 and the control cluster on port 8655. The master node runs gmetad, a daemon that collects data from all the monitors, and stores it in an RRD tools database.
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