Book Image

Mastering Ceph

By : Nick Fisk
Book Image

Mastering Ceph

By: Nick Fisk

Overview of this book

Mastering Ceph covers all that you need to know to use Ceph effectively. Starting with design goals and planning steps that should be undertaken to ensure successful deployments, you will be guided through to setting up and deploying the Ceph cluster, with the help of orchestration tools. Key areas of Ceph including Bluestore, Erasure coding and cache tiering will be covered with help of examples. Development of applications which use Librados and Distributed computations with shared object classes are also covered. A section on tuning will take you through the process of optimisizing both Ceph and its supporting infrastructure. Finally, you will learn to troubleshoot issues and handle various scenarios where Ceph is likely not to recover on its own. By the end of the book, you will be able to successfully deploy and operate a resilient high performance Ceph cluster.
Table of Contents (12 chapters)

Monitoring Ceph with collectd

Previously in this chapter, we have covered what monitoring should be done around your entire Ceph infrastructure. Although the alert monitoring is out of scope of this book, we will now look at capturing the Ceph performance metrics with collectd, storing them in Graphite and then finally creating a dashboard with graphs using Grafana. These captured metrics can then be used in the following chapter to help tune your Ceph cluster.

We will build this monitoring infrastructure on one of our monitor nodes in our test cluster. In a production cluster, it is highly recommended that it gets its own dedicated server.

Graphite

Graphite is a time series database which excels in storing large amounts of metrics and has a mature query language...