Author: harsh
Date: Fri Mar 9 21:07:33 2012
New Revision: 1299045
URL: http://svn.apache.org/viewvc?rev=1299045&view=rev
Log:
MAPREDUCE-3991. Streaming FAQ has some wrong instructions about input files
splitting. (harsh)
Modified:
hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
hadoop/common/trunk/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/streaming.xml
Modified: hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt?rev=1299045&r1=1299044&r2=1299045&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt Fri Mar 9
21:07:33 2012
@@ -113,6 +113,8 @@ Release 0.23.3 - UNRELEASED
MAPREDUCE-3885. Avoid an unnecessary copy for all requests/responses in
MRs ProtoOverHadoopRpcEngine. (Devaraj Das via sseth)
+ MAPREDUCE-3991. Streaming FAQ has some wrong instructions about input
files splitting. (harsh)
+
OPTIMIZATIONS
BUG FIXES
Modified:
hadoop/common/trunk/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/streaming.xml
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/streaming.xml?rev=1299045&r1=1299044&r2=1299045&view=diff
==============================================================================
---
hadoop/common/trunk/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/streaming.xml
(original)
+++
hadoop/common/trunk/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/streaming.xml
Fri Mar 9 21:07:33 2012
@@ -750,7 +750,7 @@ You can use Hadoop Streaming to do this.
As an example, consider the problem of zipping (compressing) a set of files
across the hadoop cluster. You can achieve this using either of these methods:
</p><ol>
<li> Hadoop Streaming and custom mapper script:<ul>
- <li> Generate a file containing the full HDFS path of the input files. Each
map task would get one file name as input.</li>
+ <li> Generate files listing the full HDFS paths of the files to be
processed. Each list file is the input for an individual map task which
processes the files listed.</li>
<li> Create a mapper script which, given a filename, will get the file to
local disk, gzip the file and put it back in the desired output directory</li>
</ul></li>
<li>The existing Hadoop Framework:<ul>
