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Posted to commits@tajo.apache.org by hy...@apache.org on 2015/03/09 03:35:30 UTC
svn commit: r1665114 [16/30] - in /tajo/site/docs: 0.10.0/ 0.10.0/_sources/
0.10.0/_sources/backup_and_restore/ 0.10.0/_sources/configuration/
0.10.0/_sources/functions/ 0.10.0/_sources/getting_started/
0.10.0/_sources/index/ 0.10.0/_sources/partitioni...
Added: tajo/site/docs/0.10.0/jdbc_driver.html
URL: http://svn.apache.org/viewvc/tajo/site/docs/0.10.0/jdbc_driver.html?rev=1665114&view=auto
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--- tajo/site/docs/0.10.0/jdbc_driver.html (added)
+++ tajo/site/docs/0.10.0/jdbc_driver.html Mon Mar 9 02:35:26 2015
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+<li class="toctree-l1 current"><a class="current reference internal" href="">Tajo JDBC Driver</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="#how-to-get-jdbc-driver">How to get JDBC driver</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#setting-the-classpath">Setting the CLASSPATH</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#an-example-jdbc-client">An Example JDBC Client</a></li>
+<li class="toctree-l2"><a class="reference internal" href="#faq">FAQ</a></li>
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+ <div class="section" id="tajo-jdbc-driver">
+<h1>Tajo JDBC Driver<a class="headerlink" href="#tajo-jdbc-driver" title="Permalink to this headline">¶</a></h1>
+<p>Apache Tajo⢠provides JDBC driver
+which enables Java applciations to easily access Apache Tajo in a RDBMS-like manner.
+In this section, we explain how to get JDBC driver and an example code.</p>
+<div class="section" id="how-to-get-jdbc-driver">
+<h2>How to get JDBC driver<a class="headerlink" href="#how-to-get-jdbc-driver" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="from-binary-distribution">
+<h3>From Binary Distribution<a class="headerlink" href="#from-binary-distribution" title="Permalink to this headline">¶</a></h3>
+<p>Tajo binary distribution provides JDBC jar file and its dependent JAR files.
+Those files are located in <tt class="docutils literal"><span class="pre">${TAJO_HOME}/share/jdbc-dist/</span></tt>.</p>
+</div>
+<div class="section" id="from-building-source-code">
+<h3>From Building Source Code<a class="headerlink" href="#from-building-source-code" title="Permalink to this headline">¶</a></h3>
+<p>You can build Tajo from the source code and then get JAR files as follows:</p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>tar xzvf tajo-x.y.z-src.tar.gz
+<span class="nv">$ </span>mvn clean package -DskipTests -Pdist -Dtar
+<span class="nv">$ </span>ls -l tajo-dist/target/tajo-x.y.z/share/jdbc-dist
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="setting-the-classpath">
+<h2>Setting the CLASSPATH<a class="headerlink" href="#setting-the-classpath" title="Permalink to this headline">¶</a></h2>
+<p>In order to use the JDBC driver, you should set the jar files included in
+<tt class="docutils literal"><span class="pre">tajo-dist/target/tajo-x.y.z/share/jdbc-dist</span></tt> to your <tt class="docutils literal"><span class="pre">CLASSPATH</span></tt>.
+In addition, you should add hadoop clsspath into your <tt class="docutils literal"><span class="pre">CLASSPATH</span></tt>.
+So, <tt class="docutils literal"><span class="pre">CLASSPATH</span></tt> will be set as follows:</p>
+<div class="highlight-bash"><div class="highlight"><pre><span class="nv">CLASSPATH</span><span class="o">=</span>path/to/tajo-jdbc/*:path/to/tajo-site.xml:path/to/core-site.xml:path/to/hdfs-site.xml
+</pre></div>
+</div>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">You must add the locations which include Tajo config files (i.e., <tt class="docutils literal"><span class="pre">tajo-site.xml</span></tt>) and
+Hadoop config files (i.e., <tt class="docutils literal"><span class="pre">core-site.xml</span></tt> and <tt class="docutils literal"><span class="pre">hdfs-site.xml</span></tt>) to your <tt class="docutils literal"><span class="pre">CLASSPATH</span></tt>.</p>
+</div>
+</div>
+<div class="section" id="an-example-jdbc-client">
+<h2>An Example JDBC Client<a class="headerlink" href="#an-example-jdbc-client" title="Permalink to this headline">¶</a></h2>
+<p>The JDBC driver class name is <tt class="docutils literal"><span class="pre">org.apache.tajo.jdbc.TajoDriver</span></tt>.
+You can get the driver <tt class="docutils literal"><span class="pre">Class.forName("org.apache.tajo.jdbc.TajoDriver")</span></tt>.
+The connection url should be <tt class="docutils literal"><span class="pre">jdbc:tajo://<TajoMaster</span> <span class="pre">hostname>:<TajoMaster</span> <span class="pre">client</span> <span class="pre">rpc</span> <span class="pre">port>/<database</span> <span class="pre">name></span></tt>.
+The default TajoMaster client rpc port is <tt class="docutils literal"><span class="pre">26002</span></tt>.
+If you want to change the listening port, please refer <a class="reference internal" href="configuration/cluster_setup.html"><em>Cluster Setup</em></a>.</p>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">Currently, Tajo does not support the concept of database and namespace.
+All tables are contained in <tt class="docutils literal"><span class="pre">default</span></tt> database. So, you don’t need to specify any database name.</p>
+</div>
+<p>The following shows an example of JDBC Client.</p>
+<div class="highlight-java"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">java.sql.Connection</span><span class="o">;</span>
+<span class="kn">import</span> <span class="nn">java.sql.ResultSet</span><span class="o">;</span>
+<span class="kn">import</span> <span class="nn">java.sql.Statement</span><span class="o">;</span>
+<span class="kn">import</span> <span class="nn">java.sql.DriverManager</span><span class="o">;</span>
+
+<span class="kd">public</span> <span class="kd">class</span> <span class="nc">TajoJDBCClient</span> <span class="o">{</span>
+
+ <span class="o">....</span>
+
+ <span class="kd">public</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">main</span><span class="o">(</span><span class="n">String</span><span class="o">[]</span> <span class="n">args</span><span class="o">)</span> <span class="kd">throws</span> <span class="n">Exception</span> <span class="o">{</span>
+
+ <span class="k">try</span> <span class="o">{</span>
+ <span class="n">Class</span><span class="o">.</span><span class="na">forName</span><span class="o">(</span><span class="s">"org.apache.tajo.jdbc.TajoDriver"</span><span class="o">);</span>
+ <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">ClassNotFoundException</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span>
+ <span class="c1">// fill your handling code</span>
+ <span class="o">}</span>
+
+ <span class="n">Connection</span> <span class="n">conn</span> <span class="o">=</span> <span class="n">DriverManager</span><span class="o">.</span><span class="na">getConnection</span><span class="o">(</span><span class="s">"jdbc:tajo://127.0.0.1:26002/default"</span><span class="o">);</span>
+
+ <span class="n">Statement</span> <span class="n">stmt</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span>
+ <span class="n">ResultSet</span> <span class="n">rs</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span>
+ <span class="k">try</span> <span class="o">{</span>
+ <span class="n">stmt</span> <span class="o">=</span> <span class="n">conn</span><span class="o">.</span><span class="na">createStatement</span><span class="o">();</span>
+ <span class="n">rs</span> <span class="o">=</span> <span class="n">stmt</span><span class="o">.</span><span class="na">executeQuery</span><span class="o">(</span><span class="s">"select * from table1"</span><span class="o">);</span>
+ <span class="k">while</span> <span class="o">(</span><span class="n">rs</span><span class="o">.</span><span class="na">next</span><span class="o">())</span> <span class="o">{</span>
+ <span class="n">System</span><span class="o">.</span><span class="na">out</span><span class="o">.</span><span class="na">println</span><span class="o">(</span><span class="n">rs</span><span class="o">.</span><span class="na">getString</span><span class="o">(</span><span class="mi">1</span><span class="o">)</span> <span class="o">+</span> <span class="s">","</span> <span class="o">+</span> <span class="n">rs</span><span class="o">.</span><span class="na">getString</span><span class="o">(</span><span class="mi">3</span><span class="o">));</span>
+ <span class="o">}</span>
+ <span class="o">}</span> <span class="k">finally</span> <span class="o">{</span>
+ <span class="k">if</span> <span class="o">(</span><span class="n">rs</span> <span class="o">!=</span> <span class="kc">null</span><span class="o">)</span> <span class="n">rs</span><span class="o">.</span><span class="na">close</span><span class="o">();</span>
+ <span class="k">if</span> <span class="o">(</span><span class="n">stmt</span> <span class="o">!=</span> <span class="kc">null</span><span class="o">)</span> <span class="n">stmt</span><span class="o">.</span><span class="na">close</span><span class="o">();</span>
+ <span class="k">if</span> <span class="o">(</span><span class="n">conn</span> <span class="o">!=</span> <span class="kc">null</span><span class="o">)</span> <span class="n">conn</span><span class="o">.</span><span class="na">close</span><span class="o">();</span>
+ <span class="o">}</span>
+ <span class="o">}</span>
+<span class="o">}</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="faq">
+<h2>FAQ<a class="headerlink" href="#faq" title="Permalink to this headline">¶</a></h2>
+<div class="section" id="java-nio-channels-unresolvedaddressexception">
+<h3>java.nio.channels.UnresolvedAddressException<a class="headerlink" href="#java-nio-channels-unresolvedaddressexception" title="Permalink to this headline">¶</a></h3>
+<p>When retriving the final result, Tajo JDBC Driver tries to access HDFS data nodes.
+So, the network access between JDBC client and HDFS data nodes must be available.
+In many cases, a HDFS cluster is built in a private network which use private hostnames.
+So, the host names must be shared with the JDBC client side.</p>
+</div>
+</div>
+</div>
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+ });
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\ No newline at end of file
Added: tajo/site/docs/0.10.0/objects.inv
URL: http://svn.apache.org/viewvc/tajo/site/docs/0.10.0/objects.inv?rev=1665114&view=auto
==============================================================================
--- tajo/site/docs/0.10.0/objects.inv (added)
+++ tajo/site/docs/0.10.0/objects.inv Mon Mar 9 02:35:26 2015
@@ -0,0 +1,7 @@
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Added: tajo/site/docs/0.10.0/partitioning/column_partitioning.html
URL: http://svn.apache.org/viewvc/tajo/site/docs/0.10.0/partitioning/column_partitioning.html?rev=1665114&view=auto
==============================================================================
--- tajo/site/docs/0.10.0/partitioning/column_partitioning.html (added)
+++ tajo/site/docs/0.10.0/partitioning/column_partitioning.html Mon Mar 9 02:35:26 2015
@@ -0,0 +1,290 @@
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+<li class="toctree-l2"><a class="reference internal" href="../table_management/compression.html">Compression</a></li>
+</ul>
+</li>
+<li class="toctree-l1 current"><a class="reference internal" href="../table_partitioning.html">Table Partitioning</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="intro_to_partitioning.html">Introduction to Partitioning</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="">Column Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="range_partitioning.html">Range Partitioning</a></li>
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+ <div class="section" id="column-partitioning">
+<h1>Column Partitioning<a class="headerlink" href="#column-partitioning" title="Permalink to this headline">¶</a></h1>
+<p>The column table partition is designed to support the partition of Apache Hiveâ¢.</p>
+<div class="section" id="how-to-create-a-column-partitioned-table">
+<h2>How to Create a Column Partitioned Table<a class="headerlink" href="#how-to-create-a-column-partitioned-table" title="Permalink to this headline">¶</a></h2>
+<p>You can create a partitioned table by using the <tt class="docutils literal"><span class="pre">PARTITION</span> <span class="pre">BY</span></tt> clause. For a column partitioned table, you should use
+the <tt class="docutils literal"><span class="pre">PARTITION</span> <span class="pre">BY</span> <span class="pre">COLUMN</span></tt> clause with partition keys.</p>
+<p>For example, assume there is a table <tt class="docutils literal"><span class="pre">orders</span></tt> composed of the following schema.</p>
+<div class="highlight-python"><div class="highlight"><pre>id INT,
+item_name TEXT,
+price FLOAT
+</pre></div>
+</div>
+<p>Also, assume that you want to use <tt class="docutils literal"><span class="pre">order_date</span> <span class="pre">TEXT</span></tt> and <tt class="docutils literal"><span class="pre">ship_date</span> <span class="pre">TEXT</span></tt> as the partition keys.
+Then, you should create a table as follows:</p>
+<div class="highlight-sql"><div class="highlight"><pre><span class="k">CREATE</span> <span class="k">TABLE</span> <span class="n">orders</span> <span class="p">(</span>
+ <span class="n">id</span> <span class="nb">INT</span><span class="p">,</span>
+ <span class="n">item_name</span> <span class="nb">TEXT</span><span class="p">,</span>
+ <span class="n">price</span>
+<span class="p">)</span> <span class="n">PARTITION</span> <span class="k">BY</span> <span class="k">COLUMN</span> <span class="p">(</span><span class="n">order_date</span> <span class="nb">TEXT</span><span class="p">,</span> <span class="n">ship_date</span> <span class="nb">TEXT</span><span class="p">);</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="partition-pruning-on-column-partitioned-tables">
+<h2>Partition Pruning on Column Partitioned Tables<a class="headerlink" href="#partition-pruning-on-column-partitioned-tables" title="Permalink to this headline">¶</a></h2>
+<p>The following predicates in the <tt class="docutils literal"><span class="pre">WHERE</span></tt> clause can be used to prune unqualified column partitions without processing
+during query planning phase.</p>
+<ul class="simple">
+<li><tt class="docutils literal"><span class="pre">=</span></tt></li>
+<li><tt class="docutils literal"><span class="pre"><></span></tt></li>
+<li><tt class="docutils literal"><span class="pre">></span></tt></li>
+<li><tt class="docutils literal"><span class="pre"><</span></tt></li>
+<li><tt class="docutils literal"><span class="pre">>=</span></tt></li>
+<li><tt class="docutils literal"><span class="pre"><=</span></tt></li>
+<li>LIKE predicates with a leading wild-card character</li>
+<li>IN list predicates</li>
+</ul>
+</div>
+<div class="section" id="compatibility-issues-with-apache-hive">
+<h2>Compatibility Issues with Apache Hiveâ¢<a class="headerlink" href="#compatibility-issues-with-apache-hive" title="Permalink to this headline">¶</a></h2>
+<p>If partitioned tables of Hive are created as external tables in Tajo, Tajo can process the Hive partitioned tables directly.
+There haven’t known compatibility issues yet.</p>
+</div>
+</div>
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+
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==============================================================================
--- tajo/site/docs/0.10.0/partitioning/hash_partitioning.html (added)
+++ tajo/site/docs/0.10.0/partitioning/hash_partitioning.html Mon Mar 9 02:35:26 2015
@@ -0,0 +1,252 @@
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+<li class="toctree-l2"><a class="reference internal" href="../configuration/catalog-site-xml.html">The catalog-site.xml File</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../tsql/background_command.html">Executing as background process</a></li>
+</ul>
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+<li class="toctree-l2"><a class="reference internal" href="../table_management/compression.html">Compression</a></li>
+</ul>
+</li>
+<li class="toctree-l1 current"><a class="reference internal" href="../table_partitioning.html">Table Partitioning</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="intro_to_partitioning.html">Introduction to Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="column_partitioning.html">Column Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="range_partitioning.html">Range Partitioning</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="">Hash Partitioning</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../backup_and_restore.html">Backup and Restore</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../backup_and_restore/catalog.html">Backup and Restore Catalog</a></li>
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+ <li>Hash Partitioning</li>
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+ <div class="section" id="hash-partitioning">
+<h1>Hash Partitioning<a class="headerlink" href="#hash-partitioning" title="Permalink to this headline">¶</a></h1>
+<div class="admonition-todo admonition" id="index-0">
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Added: tajo/site/docs/0.10.0/partitioning/intro_to_partitioning.html
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--- tajo/site/docs/0.10.0/partitioning/intro_to_partitioning.html (added)
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+<li class="toctree-l2"><a class="reference internal" href="../tsql/background_command.html">Executing as background process</a></li>
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+<li class="toctree-l2"><a class="reference internal" href="../functions/network_func_and_operators.html">Network Functions and Operators</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../table_management.html">Table Management</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="../table_management/table_overview.html">Overview of Tajo Tables</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../table_management/file_formats.html">File Formats</a></li>
+<li class="toctree-l2"><a class="reference internal" href="../table_management/compression.html">Compression</a></li>
+</ul>
+</li>
+<li class="toctree-l1 current"><a class="reference internal" href="../table_partitioning.html">Table Partitioning</a><ul class="current">
+<li class="toctree-l2 current"><a class="current reference internal" href="">Introduction to Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="column_partitioning.html">Column Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="range_partitioning.html">Range Partitioning</a></li>
+<li class="toctree-l2"><a class="reference internal" href="hash_partitioning.html">Hash Partitioning</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="../backup_and_restore.html">Backup and Restore</a><ul>
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+
+ <div class="section" id="introduction-to-partitioning">
+<h1>Introduction to Partitioning<a class="headerlink" href="#introduction-to-partitioning" title="Permalink to this headline">¶</a></h1>
+<p>Table partitioning provides two benefits: easy table management and data pruning by partition keys.
+Currently, Apache Tajo only provides Apache Hive-compatible column partitioning.</p>
+<div class="section" id="partitioning-methods">
+<h2>Partitioning Methods<a class="headerlink" href="#partitioning-methods" title="Permalink to this headline">¶</a></h2>
+<dl class="docutils">
+<dt>Tajo provides the following partitioning methods:</dt>
+<dd><ul class="first last simple">
+<li>Column Partitioning</li>
+<li>Range Partitioning (TODO)</li>
+<li>Hash Partitioning (TODO)</li>
+</ul>
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Added: tajo/site/docs/0.10.0/partitioning/range_partitioning.html
URL: http://svn.apache.org/viewvc/tajo/site/docs/0.10.0/partitioning/range_partitioning.html?rev=1665114&view=auto
==============================================================================
--- tajo/site/docs/0.10.0/partitioning/range_partitioning.html (added)
+++ tajo/site/docs/0.10.0/partitioning/range_partitioning.html Mon Mar 9 02:35:26 2015
@@ -0,0 +1,252 @@
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