[...]... Culler The Ganglia Distributed Monitoring System: Design, Implementation, and Experience Parallel Computing, 2004 0167-8191 2 Sacerdoti, Federico, Mason Katz, Matthew Massie, and David Culler Wide Area Cluster Monitoring with Ganglia Cluster Computing, December 2003 x | Preface that indexed the metrics in memory and answered queries from a command-line utility named ganglia If you ran ganglia without... years • Ganglia 1.0 had only a basic web interface, whereas Ganglia today has a rich web UI (see Figure P-1) with customizable views, mobile support, live dashboards, and much more • Ganglia 1.0 was not extensible, whereas Ganglia today can publish custom metrics via Python and C modules or a simple command-line tool • Ganglia 1.0 could only be used for monitoring a single cluster, whereas Ganglia. .. Daniel on the Ganglia lists Chapter 7 and Chapter 8 cover interoperation with other monitoring systems Integration with Nagios, arguably the most ubiquitous open source monitoring system today, is the subject of Chapter 7; Chapter 8 covers sFlow, an industry standard technology for monitoring high-speed switched networks Ganglia includes built-in functionality that enables it to integrate with both of... installed, proceed with the Ganglia installation by downloading the latest Ganglia version Installing Ganglia | 15 Uncompress and extract the tarball you have just downloaded: $ tar -xvzf ganglia- major.minor.release.tar.gz Successfully building Ganglia 3.1.2 on OS X 10.5 requires that you apply the patch detailed here Download the patch file and copy it to the root of the extracted Ganglia source tree,... highlighting the strength of its design On the other hand, the Ganglia Monitoring Daemon (gmond) with its lightweight messaging and UDP/XDR data exchange—is ideal for large clusters The components of Ganglia complement each other to deliver a scalable monitoring system that can handle a variety of deployment scenarios In 2000, I open-sourced Ganglia and hosted the project from a Berkeley website You can... more traditional monitoring systems to handle, and it integrates seamlessly with any traditional monitoring systems you may happen to be using In this chapter, we’d like to introduce you to Ganglia and help you evaluate whether it’s a good fit for your environment Because Ganglia is a product of the labor of systems guys—like you—who were trying to solve a problem, our introduction begins with a description... session that Eric came up with the name Ganglia. ” Albert Goto developed an automated installation system that made it easy to spin up large clusters with specific software profiles in minutes His software allowed me to easily deploy and test Ganglia on large clusters and definitely contributed to the speed and quality of Ganglia development I consider myself very lucky to have worked with so many talented... default is all the nodes in the cluster or GANGLIA_ MAX environment variables GANGLIA_ MAX maximum number of hosts to return (can be overidden by command line) EXAMPLES prompt> ganglia -cpu_num would list all (or GANGLIA_ MAX) nodes in ascending order by number of cpus prompt> ganglia -cpu_num 10 would list 10 nodes in descending order by number of cpus prompt> ganglia -cpu_user -mem_free 25 Preface | xi... Requirements As of Ganglia 3.4.0, the web interface is a separate distribution tarball maintained in a separate source code repository The release cycle and version numbers of gweb are no 16 | Chapter 2: Installing and Configuring Ganglia longer in lockstep with the release cycle and version numbers of the Ganglia gmond and the gmetad daemon Ganglia developers support gweb 3.4.0 with all versions of... may share the same configuration file, which means that in practice Ganglia admins have to manage only as many configuration files as there are clusters Is Ganglia Right for You? You now have enough of the story to evaluate Ganglia for your own needs Ganglia should work great for you, provided that: • You have a number of computers with general-purpose operating systems (e.g., not routers, switches, . 137 Displaying Ganglia Data in the Nagios UI 138 Monitoring Ganglia with Nagios 139 Monitoring Processes 139 Monitoring Connectivity 140 Monitoring cron. command-line utility named ganglia. If you ran ganglia without any options, it would output the following help: $ ganglia GANGLIA SYNTAX ganglia [+,-]token