Ganglia – scalable distributed monitoring system

Last Updated on September 15, 2023

Ganglia is a scalable, real-time cluster monitoring environment that collects cluster statistics in an open and well-defined XML format.

It is based on a hierarchical design targeted at federations of clusters. It relies on a multicast-based listen/announce protocol to monitor state within clusters and uses a tree of point-to-point connections amongst representative cluster nodes to federate clusters and aggregate their state.

Ganglia leverages widely used technologies such as XML for data representation, XDR for compact, portable data transport, and RRDtool for data storage and visualization. It uses carefully engineered data structures and algorithms to achieve very low per-node overheads and high concurrency. The implementation is robust, has been ported to an extensive set of operating systems and processor architectures, and is currently in use on over 500 clusters around the world. It has been used to link clusters across university campuses and around the world and can scale to handle clusters with 2000 nodes.

Features include:

• Ganglia Monitoring Daemon – a multi-threaded daemon which runs on each cluster node you want to monitor.
• Ganglia Meta Daemon – consolidates data on the head node.
• Ganglia PHP Web Front-end.
• rrdtool – consolidates data on the head node.

Website: ganglia.sourceforge.net
Support:
Developer: Ganglia Development Team
License: BSD license

The Ganglia web front-end is written in PHP. Learn PHP with our recommended free books and free tutorials.

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