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You're reading from Hands-On Linux for Architects Design and implement Linux-based IT solutions

Product type Paperback

Published in Apr 2019

Publisher Packt

ISBN-13 9781789534108

Length 380 pages

Edition 1st Edition

Tools

Linux

Concepts

Design

Authors (2):

Denis Salamanca

Esteban Flores

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Table of Contents (22) Chapters

Preface

1. Section 1: High-Performance Storage Solutions with GlusterFS FREE CHAPTER

2. Introduction to Design Methodology

3. Defining GlusterFS Storage

4. Architecting a Storage Cluster

5. Using GlusterFS on the Cloud Infrastructure

6. Analyzing Performance in a Gluster System

7. Section 2: High-Availablility Nginx Web Application Using Kubernetes

8. Creating a Highly Available Self-Healing Architecture

9. Understanding the Core Components of a Kubernetes Cluster

10. Architecting a Kubernetes Cluster

11. Deploying and Configuring Kubernetes

12. Section 3: Elastic Stack

13. Monitoring with the ELK Stack

14. Designing an ELK Stack

15. Using Elasticsearch, Logstash, and Kibana to Manage Logs

16. Section 4: System Management Using Saltstack

17. Solving Management Problems with Salty Solutions

18. Getting Your Hands Salty

19. Design Best Practices

20. Assessments

21. Other Books You May Enjoy

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Availability testing

Making sure that the cluster is able to tolerate a node going down is crucial because we can confirm that no downtime occurs if a node is lost.

This can be done by forcibly shutting down one of the nodes while the others continue to serve data. To function as a synthetic workload, we can use FIO to perform a continuous test while one of the nodes is being shut down.

In the following screenshot, we can see that the gfs2 node was not present, but the FIO test continued serving data as expected:

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Authors (2)

Salamanca

Denis Salamanca is a technology enthusiast living in Costa Rica with his fiance and step-son. He has been working in IT since he was 20 and has worked for the most influential and leading companies in the industry, including VMware, Microsoft, and Hewlett-Packard Enterprise. He currently holds more than 10 technical certifications across different fields, such as cloud, storage, Linux, Docker, and virtualization. He has also participated in the development of Linux certifications and is part of the CompTIA Linux Subject Matter Experts and Technical Advisory Committee. His love for technology has driven him to work in different positions and fields across his career, and this has helped him to develop an understanding about the different points of view that a technical solution requires.

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Flores

Esteban Flores has been meddling with computers since he was 8 years old. His life as an IT expert began when he lost a lot of important data belonging to his family by saying he was "fixing the computer." He's worked for top-tier companies, including Hewlett-Packard Enterprise, VMware, Akamai, and Microsoft. With 10 years' experience, his passion for cutting-edge technology has driven him to work on different roles during his professional career. Storage technologies have always been his forte, focusing mostly on performance tuning and optimization. A photographer during his free time, he's been doing Linux-related things since his first job, finding amazement in its flexibility to run from a small laptop all the way up to the world's fastest supercomputers.

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