Book Image

Learning Ceph - Second Edition

By : Karan Singh, Vaibhav Bhembre, Anthony D'Atri
Book Image

Learning Ceph - Second Edition

By: Karan Singh, Vaibhav Bhembre, Anthony D'Atri

Overview of this book

Learning Ceph, Second Edition will give you all the skills you need to plan, deploy, and effectively manage your Ceph cluster. You will begin with the first module, where you will be introduced to Ceph use cases, its architecture, and core projects. In the next module, you will learn to set up a test cluster, using Ceph clusters and hardware selection. After you have learned to use Ceph clusters, the next module will teach you how to monitor cluster health, improve performance, and troubleshoot any issues that arise. In the last module, you will learn to integrate Ceph with other tools such as OpenStack, Glance, Manila, Swift, and Cinder. By the end of the book you will have learned to use Ceph effectively for your data storage requirements.
Table of Contents (18 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

New since the first edition


The Jewel LTS release brought a number of significant changes:

  • Unified queue of client I/O, recovery, scrubs, and snapshot trimming
  • Daemons now run as the ceph user, which must be addressed when upgrading
  • Cache tier improvements
  • SHEC erasure coding is no longer experimental
  • The SWIFT API now supports object expiration
  • RBD improvements (now supports suffixes)
  • rbd du shows actual and provisioned usage quickly via object-map and fast-diff features
  • New rbd status command
  • deep-flatten now handles snapshots
  • CephFS snapshots can now be renamed
  • And CephFS is considered stable!
  • Scrubbing improvements
  • TCMalloc improvements
  • Multisite functionality in RGW significantly improved
  • OpenStack Keystone v3 support
  • Swift per-tenant namespace
  • Async RBD mirroring
  • A new look for ceph status

Note

More details on the Jewel release can be found at http://ceph.com/releases/v10-2-0-jewel-released.

As we write, the major Luminous LTS release has just reached general availability. Early experiences are positive and it is the best choice for new deployments. Much-anticipated features in Luminous include:

  • The BlueStore back end is supported
  • In-line compression and read checksums
  • Erasure coding for RBD volumes
  • Better tools for uniform OSD utilization
  • Improved tools for the OSD lifecycle
  • Enhanced CLI
  • Multiple active CephFS MDS servers are supported

Note

The release notes for Luminous 12.2.0 can be found at https://ceph.com/releases/v12-2-0-luminous-released/.