This book aims to be the official guide for the HBase version it ships with. This document describes HBase version 0.90.1. Herein you will find either the definitive documentation on an HBase topic as of its standing when the referenced HBase version shipped, or this book will point to the location in javadoc, JIRA or wiki where the pertinent information can be found.
This book is a work in progress. It is lacking in many areas but we hope to fill in the holes with time. Feel free to add to this book should by adding a patch to an issue up in the HBase JIRA.