Troubleshooting OpenStack

Get unstuck and start stacking!About This BookEasily fix the nagging problems that commonly plague OpenStack and become the go-to person in your organizationGet better equipped to troubleshoot and solve common problems in performance, availability, and automation that confront production-ready OpenStack environmentsSave time and decrease frustration by solving significant issues that arise from OpenStack deployments pertaining to storage and networkingWho This Book Is ForYou will need a basic understanding of OpenStack, Linux, and Cloud computing. If you have an understanding of Linux, this book will help you leverage that knowledge in the world of OpenStack, giving you confidence to tackle most issues that may arise.What You Will LearnDiagnose and remediate authentication and authorization problems in KeystoneFix common issues with images served through GlanceMaster the art of troubleshooting Neutron networkingNavigate and overcome problems with NovaTroubleshoot and resolve Cinder block storage issuesIdentify and correct Swift object storage problemsIsolate and fix issues caused by Heat orchestrationLeverage Ceilometer and other metering and monitoring tools for effective troubleshootingIn DetailOpenStack is a collection of software projects that work together to provide a cloud fabric. OpenStack is one of the fastest growing open source projects in history that unlocks cloud computing for everyone. With OpenStack, you are able to create public or private clouds on your own hardware. The flexibility and control afforded by OpenStack puts the cloud within reach of anyone willing to learn this technology.Starting with an introduction to OpenStack troubleshooting tools, we'll walk through each OpenStack service and how you can quickly diagnose, troubleshoot, and correct problems in your OpenStack. Understanding the various projects and how they interact is essential for anyone attempting to troubleshoot an OpenStack cloud. We will start by explaining each of the major components and the dependencies between them, and move on to show you how to identify and utilize an effective set of OpenStack troubleshooting tools and fix common Keystone problems. Next, we will expose you to common errors and problems you may encounter when using the OpenStack Block Storage service (Cinder). We will then examine Heat, the OpenStack Orchestration Service, where you will learn how to trace errors, determine their root cause, and effectively correct the issue.Finally, you will get to know the best practices to architect your OpenStack cloud in order to achieve optimal performance, availability, and reliability.Style and approachThis is straight-to-the point guide to fixing your OpenStack cluster. Common problems are identified and suggestions to resolve these problems are presented in a simple, easy-to-understand manner.