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

When you are operating a Ceph cluster, it's important to monitor its health and performance. By monitoring Ceph, you can be sure that your cluster is running in full health and also be able to quickly react to any issues that may arise. By capturing and graphing performance counters, you will also have the data required to tune Ceph and observe your tuning impact on your cluster.

In this chapter you will learn the following topics:

  • Why it is important to monitor Ceph
  • How to monitor Ceph's health
  • What should be monitored
  • The states of PGs and what they mean
  • How to capture and Ceph's performance counters with collectd
  • Example graphs using Graphite