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Practical DevOps, Second Edition

You're reading from   Practical DevOps, Second Edition Implement DevOps in your organization by effectively building, deploying, testing, and monitoring code

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781788392570
Length 250 pages
Edition 2nd Edition
Tools
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Author (1):
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joakim verona joakim verona
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joakim verona
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Table of Contents (12) Chapters Close

Preface 1. Introducing DevOps and Continuous Delivery FREE CHAPTER 2. A View from Orbit 3. How DevOps Affects Architecture 4. Everything is Code 5. Building the Code 6. Testing the Code 7. Deploying the Code 8. Monitoring the Code 9. Issue Tracking 10. The Internet of Things and DevOps 11. Other Books You May Enjoy

Ganglia

Ganglia is a graphing and monitoring solution for large clusters. It can aggregate information in convenient overview displays.

The word ganglia is the plural form of ganglion, which is a nerve cell cluster in anatomy. The analogy implies that Ganglia can be the sensory nerve cell network in your cluster.

Like Munin, Ganglia also uses RRDs for database storage and graphing, so the graphs will look similar to the previous Munin graphs. Code reuse is a good thing!

Ganglia's start page shows an overview of the available data in graph format. You can drill down in the graphs to get other perspectives:

If you drill down one of the application cluster graphs for CPU load, for example, you get a detailed view of the individual servers in the cluster. You can click on a server node to drill down further.

If you have a large cluster, you can clearly see the attraction of...

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