From d11ddc0622c16b605b2e62f267a0564d2f318d34 Mon Sep 17 00:00:00 2001
From: Doug Meil <dmeil@apache.org>
Date: Wed, 30 Nov 2011 03:08:14 +0000
Subject: [PATCH] hbase-4898. book.xml (1 correction in no-reducer summary)
 troubleshooting.xml 1 addition for MapReduce related documentation.

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1208230 13f79535-47bb-0310-9956-ffa450edef68
---
 src/docbkx/book.xml            | 8 +++++---
 src/docbkx/troubleshooting.xml | 5 +++++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/docbkx/book.xml b/src/docbkx/book.xml
index b414201190e..83ec9e87c59 100644
--- a/src/docbkx/book.xml
+++ b/src/docbkx/book.xml
@@ -867,9 +867,11 @@ System.out.println("md5 digest as string length: " + sbDigest.length);    // ret
 
   <chapter xml:id="mapreduce">
   <title>HBase and MapReduce</title>
-  <para>See <link xlink:href="http://hbase.org/apidocs/org/apache/hadoop/hbase/mapreduce/package-summary.html#package_description">HBase and MapReduce</link> up in javadocs.
+  <para>See <link xlink:href="http://hbase.org/apidocs/org/apache/hadoop/hbase/mapreduce/package-summary.html#package_description">
+  HBase and MapReduce</link> up in javadocs.
   Start there.  Below is some additional help.</para>
-  <para>For more information about MapReduce, see the <link xlink:href="http://hadoop.apache.org/common/docs/current/mapred_tutorial.html">Hadoop MapReduce Tutorial</link>.</para>
+  <para>For more information about MapReduce (i.e., the framework in general), see the
+   <link xlink:href="http://hadoop.apache.org/common/docs/current/mapred_tutorial.html">Hadoop MapReduce Tutorial</link>.</para>
   <section xml:id="splitter">
     <title>Map-Task Spitting</title>
     <section xml:id="splitter.default">
@@ -1117,7 +1119,7 @@ if (!b) {
     <title>HBase MapReduce Summary Without Reducer</title>
        <para>It is also possible to perform summaries without a reducer - if you use HBase as the reducer.
        </para> 
-       <para>There would need to exist an HTable target table for the job summary.  The HTable method <code>incrementColumnValue</code>
+       <para>An HBase target table would need to exist for the job summary.  The HTable method <code>incrementColumnValue</code>
        would be used to atomically increment values.  From a performance perspective, it might make sense to keep a Map 
        of values with their values to be incremeneted for each map-task, and make one update per key at during the <code>
        cleanup</code> method of the mapper.  However, your milage may vary depending on the number of rows to be processed and 
diff --git a/src/docbkx/troubleshooting.xml b/src/docbkx/troubleshooting.xml
index a600234fba4..d809fea85d5 100644
--- a/src/docbkx/troubleshooting.xml
+++ b/src/docbkx/troubleshooting.xml
@@ -554,6 +554,11 @@ Caused by: java.io.FileNotFoundException: File _partition.lst does not exist.
        at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:210)
 </programlisting>
        LocalJobRunner means the job is running locally, not on the cluster.
+      </para>
+      <para>See 
+      <link xlink:href="http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/mapreduce/package-summary.html#classpath">
+      http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/mapreduce/package-summary.html#classpath</link> for more 
+      information on HBase MapReduce jobs and classpaths.
       </para>        
       </section>
     </section>