Refactor hadoop section to favor 205 over branch-0.20-append

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1186355 13f79535-47bb-0310-9956-ffa450edef68

src/docbkx/configuration.xml

@@ -192,32 +192,34 @@ to ensure well-formedness of your document after an edit session.
               This version of HBase will only run on <link
         xlink:href="http://hadoop.apache.org/common/releases.html">Hadoop
         0.20.x</link>. It will not run on hadoop 0.21.x (nor 0.22.x).
-        HBase will lose data unless it is running on an HDFS that has a durable
+        HBase will lose data unless it is running on an HDFS that have a durable
-        <code>sync</code>. Hadoop 0.20.2 and Hadoop 0.20.203.0 DO NOT have this attribute.
+        <code>sync</code>. Hadoop 0.20.2, Hadoop 0.20.203.0, and Hadoop 0.20.204.0
-        Currently only the <link
+	DO NOT have this attribute.
-        xlink:href="http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-append/">branch-0.20-append</link>
+        Currently only Hadoop versions 0.20.205.0 or any release in excess of this
-        branch has this a working sync<footnote>
+        version has a durable sync
-            <para>See <link
+        <footnote><para>Until recently only the
-            xlink:href="http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-append/CHANGES.txt">CHANGES.txt</link>
+        <link xlink:href="http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-append/">branch-0.20-append</link>
-            in branch-0.20-append to see list of patches involved adding
+        branch had a working sync but no official release was ever made from this branch.
-            append on the Hadoop 0.20 branch.</para>
+        You had to build it yourself. Michael Noll wrote a detailed blog,
-          </footnote>. No official releases have been made from the branch-0.20-append branch up
-        to now so you will have to build your own Hadoop from the tip of this
-        branch.  Michael Noll has written a detailed blog,
         <link xlink:href="http://www.michael-noll.com/blog/2011/04/14/building-an-hadoop-0-20-x-version-for-hbase-0-90-2/">Building
         an Hadoop 0.20.x version for HBase 0.90.2</link>, on how to build an
-    Hadoop from branch-0.20-append.  Recommended <footnote><para>Praveen Kumar has written
+    Hadoop from branch-0.20-append.  Recommended.</para></footnote>
+    <footnote><para>Praveen Kumar has written
             a complimentary article,
             <link xlink:href="http://praveen.kumar.in/2011/06/20/building-hadoop-and-hbase-for-hbase-maven-application-development/">Building Hadoop and HBase for HBase Maven application development</link>.
 </para></footnote>.</para>
 
-<para>Or rather than build your own, you could use the
+<para>Or use the
     <link xlink:href="http://www.cloudera.com/">Cloudera</link> or
     <link xlink:href="http://www.mapr.com/">MapR</link> distributions.
     Cloudera' <link xlink:href="http://archive.cloudera.com/docs/">CDH3</link>
-    is Apache Hadoop 0.20.x plus patches including all of the 0.20-append additions
+    is Apache Hadoop 0.20.x plus patches including all of the 
-    needed to add a durable sync. Use the released version of CDH3 at least (They
+    <link xlink:href="http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-append/">branch-0.20-append</link>
-    have just posted an update).  MapR includes a commercial, reimplementation of HDFS.
+    additions needed to add a durable sync. Use the released version of CDH3 at least (They
+    have just posted an update).</para>
+    <para>
+    <link xlink:href="http://www.mapr.com/">MapR</link>
+    includes a commercial, reimplementation of HDFS.
     It has a durable sync as well as some other interesting features that are not
     yet in Apache Hadoop.  Their <link xlink:href="http://www.mapr.com/products/mapr-editions/m3-edition">M3</link>
     product is free to use and unlimited.