November 2012
Beginner to intermediate
254 pages
7h 25m
English
book
Monitoring with Ganglia
by Alex Dean, Robert Alexander, Dave Josephsen, Vladimir Vuksan, Bernard Li, Brad Nicholes, Jeff Buchbinder, Frederiko Costa, Matt Massie, Peter Phaal, Daniel Pocock
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Chapter 2. Installing and Configuring Ganglia
If you’ve made it this far, it is assumed that you’ve decided to join the ranks of the Ganglia user base. Congratulations! We’ll have your Ganglia-user conspiracy to conquer the world kit shipped immediately. Until it arrives, feel free to read through this chapter, in which we show you how to install and configure the various Ganglia components. In this chapter, we cover the installation and configuration of Ganglia 3.1.x for some of the most popular operating systems, but these instructions should apply to later versions as well.
Installing Ganglia
As mentioned earlier, Ganglia is composed of three components: gmond, gmetad, and gweb. In this first section, we’ll cover the installation and basic setup of each component.
gmond
gmond stands for Ganglia Monitoring Daemon. It’s a lightweight service that must be installed on each node from which you want to have metrics collected. This daemon performs the actual metrics collection on each host using a simple listen/announce protocol to share the data it gleans with its peer nodes in the cluster. Using gmond, you can collect a lot of system metrics right out of the box, such as CPU, memory, disk, network, and data about active processes.
Requirements
gmond installation is straightforward, and the libraries it depends upon are installed by default on most modern Linux distributions (as of this writing, those libraries are libconfuse, pkgconfig, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.