October 2014
Intermediate to advanced
338 pages
8h 51m
English
Content preview from OpenStack SwiftBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 15. Operating a Swift Cluster
In this chapter we move from installation to the everyday operations of a Swift cluster. We’ll cover best practices for conducting day-to-day operational tasks, such as planning capacity additions and monitoring—whether you choose to do these in Swift or through SwiftStack. The recommendations and best practices in this chapter are based on our experiences building and operating both large and small clusters for a variety of workloads. By the end of this chapter, you’ll have a good understanding of how to operate and monitor a Swift cluster and how SwiftStack automates many of these processes through the SwiftStack Controller.
Operational Considerations
Because Swift is a distributed system that is controlled by software, does not rely on RAID, and writes multiple copies of each object (file), operating a Swift cluster is fundamentally different from operating traditional storage systems such as storage area networks (SAN) or using network-attached storage (NAS) equipment.
When dealing with SANs and NASes, if a disk dies, the operator should make sure the bad disk is replaced right away to ensure that the RAID is rebuilt and is returned to full parity in the shortest time possible. With Swift, if a disk or even an entire node goes bad, it usually isn’t a huge problem. The only time losing a drive or node can present issues is when a Swift cluster is small and very full. For example, if you have a three-node cluster that is 90% full, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.