Although we have seen the power that can be harnessed using Ceph's RADOS classes, it's important to note that this is achieved by calling your own customized code from deep inside OSDs. As a consequence, great care needs to be taken that your RADOS class is bug free. A RADOS class has the ability to modify any data on your Ceph cluster, and so accidental data corruption is easily possible. It is also possible for the RADOS class to crash the OSD process. If the class is used in large-scale cluster operations, this has the ability to affect all OSDs in the cluster and so great care should be taken to ensure that error handling is properly done to avoid errors.
Mastering Ceph
By :
Mastering Ceph
By:
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)
Preface
Free Chapter
Planning for Ceph
Deploying Ceph
BlueStore
Erasure Coding for Better Storage Efficiency
Developing with Librados
Distributed Computation with Ceph RADOS Classes
Monitoring Ceph
Tiering with Ceph
Tuning Ceph
Troubleshooting
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