Ganglia setup explained

Or, everything you wanted to know about setting up Ganglia, but couldn't grok from the official documentation - part 2.

In this post I'll cover:

  • What purposes the different Ganglia utilities serve, and how they fit together.
  • How to set up a minimal configuration, from apt-get install through to configuring Apache …
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Why Ganglia?

Or, everything you wanted to know about setting up Ganglia, but couldn't grok from the official documentation - part 1.

I recently set up Ganglia monitoring on couple of new machines I'm looking after. While I've used Ganglia before, I wanted to do some slightly non-standard things this time around. This …

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Setting up disk quotas with Ubuntu 12.04

There seems to be very little information on the web about setting up disk quotas, presumably because it's perceived as being trivial. However, it's nice to have this confirmed or refuted before you dive in, so here are my notes.

First off:

$ sudo apt-get install quota quotatool

Now edit /etc …

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Cluster monitoring via multiple htop instances

For cluster-usage monitoring I've mostly been using Ganglia, as covered here. But while it provides a great overview, sometimes you need to drill down and quickly see who's running what, on which node.

For this, htop is a great tool with minimal overheads - console friendly interface, tiny footprint etc.

I've …

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