Monitoring Eucalyptus IaaS Availability with Nagios

This article describes one way to monitor your Eucalyptus cloud with Eutester, a framework for testing clouds and Nagios, a popular open source infrastructure monitoring tool. I've also posted this over on the Eucalyptus wiki for future reference.

We use a simple instance testcase from Eutester to spin up an instance in Eucalyptus with a custom ssh key and security group, ping the instance, ssh into it and then terminate the instance. We then report to Nagios on the overall success of the test.

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It's alive!

I've decided to bring back my blog from near death.

I've had a blog for the past 10 years with very little content, so time to publish some things I've been working on. more ...


Lucid Cluster Testing

In the past I've worked quite a lot with Red Hat Cluster Suite and other Linux based active/passive failover clustering technologies. As technology has moved on, so have the available options for cluster software. Pacemaker + Corosync are two of these fantastic technologies. more ...


ksar

Ever wanted to process some sar data to check when/why a server was busy? more ...