[release-notes] Expanded entry for Apache HBase

[Simon Clark]

commit 52554addb0e1bf3b6cd2bb584187d09e80475d7d
Author: Simon Clark <simon.richard.clark at gmail.com>
Date:   Tue Oct 21 20:39:37 2014 +0100

    Expanded entry for Apache HBase

 en-US/Database_Servers.xml |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/en-US/Database_Servers.xml b/en-US/Database_Servers.xml
index c5f34c9..247cc09 100644
--- a/en-US/Database_Servers.xml
+++ b/en-US/Database_Servers.xml
@@ -34,8 +34,18 @@
   </section>
   <section id="apache-hbase">
     <title>Apache HBase</title>
-    <para>Apache HBase is Bigtable like data store, built on top of
-    Hadoop is now packaged and available.</para>
+    <para>Apache HBase is used when you need random, realtime
+    read/write access to your Big Data. Apache HBase hosts very
+    large tables -- billions of rows X millions of columns -- atop
+    clusters of commodity hardware. Apache HBase is a distributed,
+    versioned, non-relational database modeled after Google's
+    Bigtable: A Distributed Storage System for Structured Data by
+    Chang et al. Just as Bigtable leverages the distributed data
+    storage provided by the Google File System, Apache HBase
+    provides Bigtable-like capabilities on top of Hadoop and
+    HDFS.</para>
+    <para>For more information see 
+    <ulink url="http://hbase.apache.org/" />.</para>
   </section>
   <section id="apache-hive">
     <title>Apache Hive</title>