Monitoring with Ganglia: Tracking Dynamic Host and by Matt Massie

By Matt Massie

Written by means of Ganglia designers and maintainers, this booklet exhibits you ways to assemble and visualize metrics from clusters, grids, and cloud infrastructures at any scale. are looking to music CPU usage from 20,000 hosts each ten seconds? Ganglia is simply the device you would like, when you know the way its major parts interact. This hands-on publication is helping skilled method directors make the most of Ganglia 3.x.

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Additional info for Monitoring with Ganglia: Tracking Dynamic Host and Application Metrics at Scale

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This topology is illustrated in Figure 2-1. info Figure 2-1. Default multicast topology Of particular importance in this diagram is the disparate nature of the gmond daemon. Internally, gmond’s sending and receiving halves are not linked (a fact that is emphasized in Figure 2-1 by the dashed vertical line). gmond does not talk to itself—it only talks to the network. Any local data captured by the metric modules are transmitted directly to the network by the sender, and the receiver’s internal database contains only metric data gleaned from the network.

Which is the suggested approach), resolving the dependencies should not be problematic. Linux The Ganglia components are available in a prepackaged binary format for most Linux distributions. rpm-based systems. Debian-based distributions. To install gmond on a Debian-based Linux distribution, execute: user@host:# sudo apt-get install ganglia-monitor RPM-based distributions. You’ll find that some RPM-based distributions ship with Ganglia packages in the base repositories, and others require you to use special-purpose package repositories, such as the Red Hat project’s EPEL (Extra Packages for Enterprise Linux) repository.

Release This next step really depends on how Apache Web Server is set up on your system. You need to find out where Apache serves its pages from or, more specifically, its DocumentRoot. Of course, the following location isn’t the only possibility, but for clarity’s sake, we will work with the default settings. conf Edit the Makefile found in the tarball. Insert the location of your Apache’s DocumentRoot and the name of the user that Apache runs. On Mac OS X Lion, the settings are: # Location where gweb should be installed DESTDIR = /Library/WebServer/Documents/ganglia2 APACHE_USER = _www ...

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