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From d...@apache.org
Subject svn commit: r639227 - in /hadoop/core/branches/branch-0.16: CHANGES.txt docs/mapred_tutorial.html docs/mapred_tutorial.pdf src/docs/src/documentation/content/xdocs/mapred_tutorial.xml src/java/org/apache/hadoop/mapred/JobConf.java
Date Thu, 20 Mar 2008 09:46:24 GMT
Author: ddas
Date: Thu Mar 20 02:46:23 2008
New Revision: 639227

URL: http://svn.apache.org/viewvc?rev=639227&view=rev
Log:
HADOOP-3042. Updates the Javadoc in JobConf.getOutputPath to reflect the actual temporary
path. Contributed by Amareshwari Sriramadasu.

Modified:
    hadoop/core/branches/branch-0.16/CHANGES.txt
    hadoop/core/branches/branch-0.16/docs/mapred_tutorial.html
    hadoop/core/branches/branch-0.16/docs/mapred_tutorial.pdf
    hadoop/core/branches/branch-0.16/src/docs/src/documentation/content/xdocs/mapred_tutorial.xml
    hadoop/core/branches/branch-0.16/src/java/org/apache/hadoop/mapred/JobConf.java

Modified: hadoop/core/branches/branch-0.16/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/core/branches/branch-0.16/CHANGES.txt?rev=639227&r1=639226&r2=639227&view=diff
==============================================================================
--- hadoop/core/branches/branch-0.16/CHANGES.txt (original)
+++ hadoop/core/branches/branch-0.16/CHANGES.txt Thu Mar 20 02:46:23 2008
@@ -21,6 +21,9 @@
     HADOOP-3003. FileSystem cache key is updated after a 
     FileSystem object is created. (Tsz Wo (Nicholas), SZE via dhruba)
 
+    HADOOP-3042. Updates the Javadoc in JobConf.getOutputPath to reflect
+    the actual temporary path. (Amareshwari Sriramadasu via ddas)
+
 Release 0.16.1 - 2008-03-13
 
   INCOMPATIBLE CHANGES

Modified: hadoop/core/branches/branch-0.16/docs/mapred_tutorial.html
URL: http://svn.apache.org/viewvc/hadoop/core/branches/branch-0.16/docs/mapred_tutorial.html?rev=639227&r1=639226&r2=639227&view=diff
==============================================================================
--- hadoop/core/branches/branch-0.16/docs/mapred_tutorial.html (original)
+++ hadoop/core/branches/branch-0.16/docs/mapred_tutorial.html Thu Mar 20 02:46:23 2008
@@ -1720,10 +1720,11 @@
           (using the taskid, say <span class="codefrag">task_200709221812_0001_m_000000_0</span>),

           not just per task.</p>
 <p>To avoid these issues the Map-Reduce framework maintains a special 
-          <span class="codefrag">${mapred.output.dir}/_${taskid}</span> sub-directory
for each 
-          task-attempt on the <span class="codefrag">FileSystem</span> where
the output of the 
-          task-attempt is stored. On successful completion of the task-attempt, 
-          the files in the <span class="codefrag">${mapred.output.dir}/_${taskid}</span>
(only) 
+          <span class="codefrag">${mapred.output.dir}/_temporary/_${taskid}</span>
sub-directory
+          for each task-attempt on the <span class="codefrag">FileSystem</span>
where the output
+          of the task-attempt is stored. On successful completion of the 
+          task-attempt, the files in the 
+          <span class="codefrag">${mapred.output.dir}/_temporary/_${taskid}</span>
(only) 
           are <em>promoted</em> to <span class="codefrag">${mapred.output.dir}</span>.
Of course, 
           the framework discards the sub-directory of unsuccessful task-attempts. 
           This process is completely transparent to the application.</p>

Modified: hadoop/core/branches/branch-0.16/docs/mapred_tutorial.pdf
URL: http://svn.apache.org/viewvc/hadoop/core/branches/branch-0.16/docs/mapred_tutorial.pdf?rev=639227&r1=639226&r2=639227&view=diff
==============================================================================
--- hadoop/core/branches/branch-0.16/docs/mapred_tutorial.pdf (original)
+++ hadoop/core/branches/branch-0.16/docs/mapred_tutorial.pdf Thu Mar 20 02:46:23 2008
@@ -1371,10 +1371,10 @@
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 trailer
 <<
 /Size 295
@@ -2939,5 +2939,5 @@
 /Info 4 0 R
 >>
 startxref
-108920
+108921
 %%EOF

Modified: hadoop/core/branches/branch-0.16/src/docs/src/documentation/content/xdocs/mapred_tutorial.xml
URL: http://svn.apache.org/viewvc/hadoop/core/branches/branch-0.16/src/docs/src/documentation/content/xdocs/mapred_tutorial.xml?rev=639227&r1=639226&r2=639227&view=diff
==============================================================================
--- hadoop/core/branches/branch-0.16/src/docs/src/documentation/content/xdocs/mapred_tutorial.xml
(original)
+++ hadoop/core/branches/branch-0.16/src/docs/src/documentation/content/xdocs/mapred_tutorial.xml
Thu Mar 20 02:46:23 2008
@@ -1270,10 +1270,11 @@
           not just per task.</p> 
  
           <p>To avoid these issues the Map-Reduce framework maintains a special 
-          <code>${mapred.output.dir}/_${taskid}</code> sub-directory for each

-          task-attempt on the <code>FileSystem</code> where the output of the

-          task-attempt is stored. On successful completion of the task-attempt, 
-          the files in the <code>${mapred.output.dir}/_${taskid}</code> (only)

+          <code>${mapred.output.dir}/_temporary/_${taskid}</code> sub-directory
+          for each task-attempt on the <code>FileSystem</code> where the output
+          of the task-attempt is stored. On successful completion of the 
+          task-attempt, the files in the 
+          <code>${mapred.output.dir}/_temporary/_${taskid}</code> (only) 
           are <em>promoted</em> to <code>${mapred.output.dir}</code>.
Of course, 
           the framework discards the sub-directory of unsuccessful task-attempts. 
           This process is completely transparent to the application.</p>

Modified: hadoop/core/branches/branch-0.16/src/java/org/apache/hadoop/mapred/JobConf.java
URL: http://svn.apache.org/viewvc/hadoop/core/branches/branch-0.16/src/java/org/apache/hadoop/mapred/JobConf.java?rev=639227&r1=639226&r2=639227&view=diff
==============================================================================
--- hadoop/core/branches/branch-0.16/src/java/org/apache/hadoop/mapred/JobConf.java (original)
+++ hadoop/core/branches/branch-0.16/src/java/org/apache/hadoop/mapred/JobConf.java Thu Mar
20 02:46:23 2008
@@ -367,10 +367,11 @@
    * <tt>task_200709221812_0001_m_000000_0</tt>), not just per TIP.</p>

    * 
    * <p>To get around this the Map-Reduce framework helps the application-writer 
-   * out by maintaining a special <tt>${mapred.output.dir}/_${taskid}</tt> 
+   * out by maintaining a special 
+   * <tt>${mapred.output.dir}/_temporary/_${taskid}</tt> 
    * sub-directory for each task-attempt on HDFS where the output of the 
    * task-attempt goes. On successful completion of the task-attempt the files 
-   * in the <tt>${mapred.output.dir}/_${taskid}</tt> (only) 
+   * in the <tt>${mapred.output.dir}/_temporary/_${taskid}</tt> (only) 
    * are <i>promoted</i> to <tt>${mapred.output.dir}</tt>. Of course,
the 
    * framework discards the sub-directory of unsuccessful task-attempts. This 
    * is completely transparent to the application.</p>
@@ -383,7 +384,7 @@
    * 
    * <p><i>Note</i>: the value of <tt>${mapred.output.dir}</tt>
during execution 
    * of a particular task-attempt is actually 
-   * <tt>${mapred.output.dir}/_{$taskid}</tt>, not the value set by 
+   * <tt>${mapred.output.dir}/_temporary/_{$taskid}</tt>, not the value set by

    * {@link #setOutputPath(Path)}. So, just create any side-files in the path 
    * returned by {@link #getOutputPath()} from map/reduce task to take 
    * advantage of this feature.</p>



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