Execution Modes

Mailing-List: contact commits-help@pig.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@pig.apache.org
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: svn commit: r1388668 - in /pig/branches/branch-0.9: CHANGES.txt
 src/docs/src/documentation/content/xdocs/start.xml
Date: Fri, 21 Sep 2012 20:30:56 -0000
To: commits@pig.apache.org
From: jcoveney@apache.org
Message-Id: <20120921203056.7A4872388A91@eris.apache.org>

Author: jcoveney
Date: Fri Sep 21 20:30:55 2012
New Revision: 1388668

URL: http://svn.apache.org/viewvc?rev=1388668&view=rev
Log:
PIG-2852: Update documentation regarding parallel local mode execution (cheolsoo via jcoveney)

Modified:
    pig/branches/branch-0.9/CHANGES.txt
    pig/branches/branch-0.9/src/docs/src/documentation/content/xdocs/start.xml

Modified: pig/branches/branch-0.9/CHANGES.txt
URL: http://svn.apache.org/viewvc/pig/branches/branch-0.9/CHANGES.txt?rev=1388668&r1=1388667&r2=1388668&view=diff
==============================================================================
--- pig/branches/branch-0.9/CHANGES.txt (original)
+++ pig/branches/branch-0.9/CHANGES.txt Fri Sep 21 20:30:55 2012
@@ -22,6 +22,8 @@ Release 0.9.3 - Unreleased
 
 IMPROVEMENTS
 
+PIG-2852: Update documentation regarding parallel local mode execution (cheolsoo via jcoveney)
+
 PIG-2766: Pig-HCat Usability (vikram.dixit via daijy)
 
 PIG-2555: PigStorageSchema initializes schema and PigContext for every tuple (rangadi via dvryaboy)

Modified: pig/branches/branch-0.9/src/docs/src/documentation/content/xdocs/start.xml
URL: http://svn.apache.org/viewvc/pig/branches/branch-0.9/src/docs/src/documentation/content/xdocs/start.xml?rev=1388668&r1=1388667&r2=1388668&view=diff
==============================================================================
--- pig/branches/branch-0.9/src/docs/src/documentation/content/xdocs/start.xml (original)
+++ pig/branches/branch-0.9/src/docs/src/documentation/content/xdocs/start.xml Fri Sep 21 20:30:55 2012
@@ -121,7 +121,7 @@ Test the Pig installation with this simp
 	<title>Execution Modes</title> 
 <p>Pig has two execution modes or exectypes: </p>
 <ul>
-<li><strong>Local Mode</strong> - To run Pig in local mode, you need access to a single machine; all files are installed and run using your local host and file system. Specify local mode using the -x flag (pig -x local).
+<li><strong>Local Mode</strong> - To run Pig in local mode, you need access to a single machine; all files are installed and run using your local host and file system. Specify local mode using the -x flag (pig -x local). Note that local mode does not support parallel mapper execution with Hadoop 0.20.x and 1.0.0. This is because the LocalJobRunner of these Hadoop versions is not thread-safe.
 </li>
 <li><strong>Mapreduce Mode</strong> - To run Pig in mapreduce mode, you need access to a Hadoop cluster and HDFS installation. Mapreduce mode is the default mode; you can, <em>but don't need to</em>, specify it using the -x flag (pig OR pig -x mapreduce).
 </li>