Your cluster’s operation can hiccup because of any of a myriad set of reasons from bugs in HBase itself through misconfigurations — misconfiguration of HBase but also operating system misconfigurations — through to hardware problems whether it be a bug in your network card drivers or an underprovisioned RAM bus (to mention two recent examples of hardware issues that manifested as "HBase is slow").You will also need to do a recalibration if up to this your computing has been bound to a single box.
Herein you will find either the definitive documentation on an HBase topic as of its standing when the referenced HBase version shipped, or it will point to the location in Javadoc or JIRA where the pertinent information can be found. The source for this guide can be found in the _src/main/asciidoc directory of the HBase source.This reference guide is marked up using Ascii Doc from which the finished guide is generated as part of the 'site' build target.The features and functionality in those new releases reflect customer requests, bug fixes, updates to support new browsers/operating systems, and more.Note that most new versions of Directory Update require a new license key.Please contact support(at) if you wish to determine if your eligible for a free update.
Existing customers: You cannot just install the new version over the top of the old version.
Run If this is your first foray into the wonderful world of Distributed Computing, then you are in for some interesting times.
First off, distributed systems are hard; making a distributed system hum requires a disparate skillset that spans systems (hardware and software) and networking.
The product is customized through the use of options available in XML files.
The administrator adds/enables the fields that he/she wants made available to the user's of Directory Update.
You can download a fully functional from the Product Downloads page of our Web site; the evaluation will be fully functional for 21 days with no limitations.