HADOOP-3942. Update distcp documentation to include features introduced in

HADOOP-3873, HADOOP-3939. Contributed by Tsz Wo (Nicholas), SZE.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/trunk@700997 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -822,6 +822,9 @@ Release 0.19.0 - Unreleased
     HADOOP-4302. Fix a race condition in TestReduceFetch that can yield false
     negatvies. (cdouglas)
 
+    HADOOP-3942. Update distcp documentation to include features introduced in
+    HADOOP-3873, HADOOP-3939. (Tsz Wo (Nicholas), SZE via cdouglas)
+
 Release 0.18.2 - Unreleased
 
   BUG FIXES

docs/SLG_user_guide.html

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docs/distcp.html

@@ -67,7 +67,7 @@
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@@ -209,6 +212,9 @@ document.write("Last Published: " + document.lastModified);
 <a href="#Option+Index">Option Index</a>
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+<a href="#Symbolic-Representations">Symbolic Representations</a>
+</li>
+<li>
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@@ -408,10 +414,48 @@ document.write("Last Published: " + document.lastModified);
               qualified URI.
               </td>
 </tr>
+          
+<tr>
+<td colspan="1" rowspan="1"><span class="codefrag">-filelimit &lt;n&gt;</span></td>
+              <td colspan="1" rowspan="1">Limit the total number of files to be &lt;= n</td>
+              <td colspan="1" rowspan="1">See also <a href="#Symbolic-Representations">Symbolic
+                  Representations</a>.
+              </td>
+</tr>
+          
+<tr>
+<td colspan="1" rowspan="1"><span class="codefrag">-sizelimit &lt;n&gt;</span></td>
+              <td colspan="1" rowspan="1">Limit the total size to be &lt;= n bytes</td>
+              <td colspan="1" rowspan="1">See also <a href="#Symbolic-Representations">Symbolic
+                  Representations</a>.
+              </td>
+</tr>
+          
+<tr>
+<td colspan="1" rowspan="1"><span class="codefrag">-delete</span></td>
+              <td colspan="1" rowspan="1">Delete the files existing in the dst but not in src</td>
+              <td colspan="1" rowspan="1">The deletion is done by FS Shell.  So the trash will be used,
+                  if it is enable.
+              </td>
+</tr>
 
         
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-<a name="N10136"></a><a name="uo"></a>
+<a name="N10171"></a><a name="Symbolic-Representations"></a>
+<h4>Symbolic Representations</h4>
+<p>
+        The parameter &lt;n&gt; in <span class="codefrag">-filelimit</span>
+        and <span class="codefrag">-sizelimit</span> can be specified with symbolic
+        representation.  For examples,
+        </p>
+<ul>
+          
+<li>1230k = 1230 * 1024 = 1259520</li>
+          
+<li>891g = 891 * 1024^3 = 956703965184</li>
+        
+</ul>
+<a name="N1018A"></a><a name="uo"></a>
 <h4>Update and Overwrite</h4>
 <p>It's worth giving some examples of <span class="codefrag">-update</span> and
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@@ -510,10 +554,10 @@ document.write("Last Published: " + document.lastModified);
 </div> <!-- Usage -->
 
     
-<a name="N101E7"></a><a name="etc"></a>
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 <h2 class="h3">Appendix</h2>
 <div class="section">
-<a name="N101ED"></a><a name="Map+sizing"></a>
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 <h3 class="h4">Map sizing</h3>
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@@ -527,7 +571,7 @@ document.write("Last Published: " + document.lastModified);
 <p>Tuning the number of maps to the size of the source and
           destination clusters, the size of the copy, and the available
           bandwidth is recommended for long-running and regularly run jobs.</p>
-<a name="N10206"></a><a name="cpver"></a>
+<a name="N1025A"></a><a name="cpver"></a>
 <h3 class="h4">Copying between versions of HDFS</h3>
 <p>For copying between two different versions of Hadoop, one will
         usually use HftpFileSystem. This is a read-only FileSystem, so DistCp
@@ -536,7 +580,7 @@ document.write("Last Published: " + document.lastModified);
         specified as <span class="codefrag">hftp://&lt;dfs.http.address&gt;/&lt;path&gt;</span>
         (the default <span class="codefrag">dfs.http.address</span> is
         &lt;namenode&gt;:50070).</p>
-<a name="N10216"></a><a name="Map%2FReduce+and+other+side-effects"></a>
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@@ -156,6 +156,9 @@ document.write("Last Published: " + document.lastModified);
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+<a href="jdiff/changes.html">API Changes</a>
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+<a href="jdiff/changes.html">API Changes</a>
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src/docs/src/documentation/content/xdocs/distcp.xml

@@ -168,11 +168,39 @@
               line. The <code>urilist_uri</code> list should be a fully
               qualified URI.
               </td></tr>
+          <tr><td><code>-filelimit &lt;n&gt;</code></td>
+              <td>Limit the total number of files to be &lt;= n</td>
+              <td>See also <a href="#Symbolic-Representations">Symbolic
+                  Representations</a>.
+              </td></tr>
+          <tr><td><code>-sizelimit &lt;n&gt;</code></td>
+              <td>Limit the total size to be &lt;= n bytes</td>
+              <td>See also <a href="#Symbolic-Representations">Symbolic
+                  Representations</a>.
+              </td></tr>
+          <tr><td><code>-delete</code></td>
+              <td>Delete the files existing in the dst but not in src</td>
+              <td>The deletion is done by FS Shell.  So the trash will be used,
+                  if it is enable.
+              </td></tr>
 
         </table>
 
       </section>
 
+      <section id="Symbolic-Representations">
+        <title>Symbolic Representations</title>
+        <p>
+        The parameter &lt;n&gt; in <code>-filelimit</code>
+        and <code>-sizelimit</code> can be specified with symbolic
+        representation.  For examples,
+        </p>
+        <ul>
+          <li>1230k = 1230 * 1024 = 1259520</li>
+          <li>891g = 891 * 1024^3 = 956703965184</li>
+        </ul>
+      </section>
+
       <section id="uo">
         <title>Update and Overwrite</title>