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From mina...@apache.org
Subject svn commit: r1789699 [13/29] - in /zeppelin/site: ./ assets/themes/zeppelin/js/ contribution/ contribution/zeppelinweb/ docs/0.7.1/ docs/0.7.1/assets/ docs/0.7.1/assets/themes/ docs/0.7.1/assets/themes/zeppelin/ docs/0.7.1/assets/themes/zeppelin/bootst...
Date Fri, 31 Mar 2017 14:59:31 GMT
Added: zeppelin/site/docs/0.7.1/interpreter/bigquery.html
URL: http://svn.apache.org/viewvc/zeppelin/site/docs/0.7.1/interpreter/bigquery.html?rev=1789699&view=auto
==============================================================================
--- zeppelin/site/docs/0.7.1/interpreter/bigquery.html (added)
+++ zeppelin/site/docs/0.7.1/interpreter/bigquery.html Fri Mar 31 14:59:26 2017
@@ -0,0 +1,352 @@
+
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>Apache Zeppelin 0.7.1 Documentation: BigQuery Interpreter for Apache Zeppelin</title>
+    <meta name="description" content="BigQuery is a highly scalable no-ops data warehouse in the Google Cloud Platform.">
+    <meta name="author" content="The Apache Software Foundation">
+
+    <!-- Enable responsive viewport -->
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
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+    <!--[if lt IE 9]>
+    <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
+    <![endif]-->
+
+    <link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
+
+    <!-- Le styles -->
+    <link href="/docs/0.7.1/assets/themes/zeppelin/bootstrap/css/bootstrap.css" rel="stylesheet">
+    <link href="/docs/0.7.1/assets/themes/zeppelin/css/style.css?body=1" rel="stylesheet" type="text/css">
+    <link href="/docs/0.7.1/assets/themes/zeppelin/css/syntax.css" rel="stylesheet"  type="text/css" media="screen" /> 
+    <!-- Le fav and touch icons -->
+    <!-- Update these with your own images
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+    <link rel="apple-touch-icon" sizes="114x114" href="images/apple-touch-icon-114x114.png">
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+          <ul class="nav navbar-nav">
+            <li>
+              <a href="#" data-toggle="dropdown" class="dropdown-toggle">Quick Start <b class="caret"></b></a>
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+                <li><a href="/docs/0.7.1/index.html">What is Apache Zeppelin ?</a></li>
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+                <li class="title"><span><b>Getting Started</b><span></li>
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+                <li><a href="/docs/0.7.1/manual/notebookashomepage.html">Customize Zeppelin Homepage</a></li>
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+              <a href="#" data-toggle="dropdown" class="dropdown-toggle">Interpreter <b class="caret"></b></a>
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+                <li><a href="/docs/0.7.1/manual/interpreters.html">Overview</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span><b>Usage</b><span></li>
+                <li><a href="/docs/0.7.1/manual/interpreterinstallation.html">Interpreter Installation</a></li>
+                <!--<li><a href="/docs/0.7.1/manual/dynamicinterpreterload.html">Dynamic Interpreter Loading</a></li>-->
+                <li><a href="/docs/0.7.1/manual/dependencymanagement.html">Interpreter Dependency Management</a></li>
+                <li><a href="/docs/0.7.1/manual/userimpersonation.html">Interpreter User Impersonation</a></li>
+                <li><a href="/docs/0.7.1/manual/interpreterexechooks.html">Interpreter Execution Hooks (Experimental)</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span><b>Available Interpreters</b><span></li>
+                <li><a href="/docs/0.7.1/interpreter/alluxio.html">Alluxio</a></li>
+                <li><a href="/docs/0.7.1/interpreter/beam.html">Beam</a></li>
+                <li><a href="/docs/0.7.1/interpreter/bigquery.html">BigQuery</a></li>
+                <li><a href="/docs/0.7.1/interpreter/cassandra.html">Cassandra</a></li>
+                <li><a href="/docs/0.7.1/interpreter/elasticsearch.html">Elasticsearch</a></li>
+                <li><a href="/docs/0.7.1/interpreter/flink.html">Flink</a></li>
+                <li><a href="/docs/0.7.1/interpreter/geode.html">Geode</a></li>
+                <li><a href="/docs/0.7.1/interpreter/hbase.html">HBase</a></li>
+                <li><a href="/docs/0.7.1/interpreter/hdfs.html">HDFS</a></li>
+                <li><a href="/docs/0.7.1/interpreter/hive.html">Hive</a></li>
+                <li><a href="/docs/0.7.1/interpreter/ignite.html">Ignite</a></li>
+                <li><a href="/docs/0.7.1/interpreter/jdbc.html">JDBC</a></li>
+                <li><a href="/docs/0.7.1/interpreter/kylin.html">Kylin</a></li>
+                <li><a href="/docs/0.7.1/interpreter/lens.html">Lens</a></li>
+                <li><a href="/docs/0.7.1/interpreter/livy.html">Livy</a></li>
+                <li><a href="/docs/0.7.1/interpreter/markdown.html">Markdown</a></li>
+                <li><a href="/docs/0.7.1/interpreter/pig.html">Pig</a></li>
+                <li><a href="/docs/0.7.1/interpreter/python.html">Python</a></li>
+                <li><a href="/docs/0.7.1/interpreter/postgresql.html">Postgresql, HAWQ</a></li>
+                <li><a href="/docs/0.7.1/interpreter/r.html">R</a></li>
+                <li><a href="/docs/0.7.1/interpreter/scalding.html">Scalding</a></li>
+                <li><a href="/docs/0.7.1/interpreter/scio.html">Scio</a></li>
+                <li><a href="/docs/0.7.1/interpreter/shell.html">Shell</a></li>
+                <li><a href="/docs/0.7.1/interpreter/spark.html">Spark</a></li>
+              </ul>
+            </li>
+            <li>
+              <a href="#" data-toggle="dropdown" class="dropdown-toggle">Display System <b class="caret"></b></a>
+              <ul class="dropdown-menu">
+                <li class="title"><span><b>Basic Display System</b><span></li>
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+                <li><a href="/docs/0.7.1/displaysystem/basicdisplaysystem.html#table">Table</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span><b>Angular API</b><span></li>
+                <li><a href="/docs/0.7.1/displaysystem/back-end-angular.html">Angular (backend API)</a></li>
+                <li><a href="/docs/0.7.1/displaysystem/front-end-angular.html">Angular (frontend API)</a></li>
+              </ul>
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+              <a href="#" data-toggle="dropdown" class="dropdown-toggle">More<b class="caret"></b></a>
+              <ul class="dropdown-menu scrollable-menu" style="right: 0; left: auto;">
+                <li class="title"><span><b>Notebook Storage</b><span></li>
+                <li><a href="/docs/0.7.1/storage/storage.html#notebook-storage-in-local-git-repository">Git Storage</a></li>
+                <li><a href="/docs/0.7.1/storage/storage.html#notebook-storage-in-s3">S3 Storage</a></li>
+                <li><a href="/docs/0.7.1/storage/storage.html#notebook-storage-in-azure">Azure Storage</a></li>
+                <li><a href="/docs/0.7.1/storage/storage.html#storage-in-zeppelinhub">ZeppelinHub Storage</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span><b>REST API</b><span></li>
+                <li><a href="/docs/0.7.1/rest-api/rest-interpreter.html">Interpreter API</a></li>
+                <li><a href="/docs/0.7.1/rest-api/rest-notebook.html">Notebook API</a></li>
+                <li><a href="/docs/0.7.1/rest-api/rest-notebookRepo.html">Notebook Repository API</a></li>
+                <li><a href="/docs/0.7.1/rest-api/rest-configuration.html">Configuration API</a></li>
+                <li><a href="/docs/0.7.1/rest-api/rest-credential.html">Credential API</a></li>
+                <li><a href="/docs/0.7.1/rest-api/rest-helium.html">Helium API</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span><b>Security</b><span></li>
+                <li><a href="/docs/0.7.1/security/shiroauthentication.html">Shiro Authentication</a></li>                
+                <li><a href="/docs/0.7.1/security/notebook_authorization.html">Notebook Authorization</a></li>
+                <li><a href="/docs/0.7.1/security/datasource_authorization.html">Data Source Authorization</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span><b>Advanced</b><span></li>
+                <li><a href="/docs/0.7.1/install/virtual_machine.html">Zeppelin on Vagrant VM</a></li>
+                <li><a href="/docs/0.7.1/install/spark_cluster_mode.html#spark-standalone-mode">Zeppelin on Spark Cluster Mode (Standalone)</a></li>
+                <li><a href="/docs/0.7.1/install/spark_cluster_mode.html#spark-on-yarn-mode">Zeppelin on Spark Cluster Mode (YARN)</a></li>
+                <li><a href="/docs/0.7.1/install/spark_cluster_mode.html#spark-on-mesos-mode">Zeppelin on Spark Cluster Mode (Mesos)</a></li>
+                <li><a href="/docs/0.7.1/install/cdh.html">Zeppelin on CDH</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span><b>Contibute</b><span></li>
+                <li><a href="/docs/0.7.1/development/writingzeppelininterpreter.html">Writing Zeppelin Interpreter</a></li>
+                <li><a href="/docs/0.7.1/development/writingzeppelinvisualization.html">Writing Zeppelin Visualization (Experimental)</a></li>
+                <li><a href="/docs/0.7.1/development/writingzeppelinapplication.html">Writing Zeppelin Application (Experimental)</a></li>
+                <li><a href="/docs/0.7.1/development/howtocontribute.html">How to contribute (code)</a></li>
+                <li><a href="/docs/0.7.1/development/howtocontributewebsite.html">How to contribute (website)</a></li>
+              </ul>
+            </li>
+            <li>
+              <a href="/docs/0.7.1/search.html" class="nav-search-link">
+                <span class="fa fa-search nav-search-icon"></span>
+              </a>
+            </li>
+          </ul>
+        </nav><!--/.navbar-collapse -->
+      </div>
+    </div>
+
+
+
+    <div class="content">
+      
+<!--<div class="hero-unit BigQuery Interpreter for Apache Zeppelin">
+  <h1></h1>
+</div>
+-->
+
+<div class="row">
+  <div class="col-md-12">
+    <!--
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<h1>BigQuery Interpreter for Apache Zeppelin</h1>
+
+<div id="toc"></div>
+
+<h2>Overview</h2>
+
+<p><a href="https://cloud.google.com/bigquery/what-is-bigquery">BigQuery</a> is a highly scalable no-ops data warehouse in the Google Cloud Platform. Querying massive datasets can be time consuming and expensive without the right hardware and infrastructure. Google BigQuery solves this problem by enabling super-fast SQL queries against append-only tables using the processing power of Google&#39;s infrastructure. Simply move your data into BigQuery and let us handle the hard work. You can control access to both the project and your data based on your business needs, such as giving others the ability to view or query your data.  </p>
+
+<h2>Configuration</h2>
+
+<table class="table-configuration">
+  <tr>
+    <th>Name</th>
+    <th>Default Value</th>
+    <th>Description</th>
+  </tr>
+  <tr>
+    <td>zeppelin.bigquery.project_id</td>
+    <td>  </td>
+    <td>Google Project Id</td>
+  </tr>
+  <tr>
+    <td>zeppelin.bigquery.wait_time</td>
+    <td>5000</td>
+    <td>Query Timeout in Milliseconds</td>
+  </tr>
+  <tr>
+    <td>zeppelin.bigquery.max_no_of_rows</td>
+    <td>100000</td>
+    <td>Max result set size</td>
+  </tr>
+</table>
+
+<h2>BigQuery API</h2>
+
+<p>Zeppelin is built against BigQuery API version v2-rev265-1.21.0 - <a href="https://developers.google.com/resources/api-libraries/documentation/bigquery/v2/java/latest/">API Javadocs</a></p>
+
+<h2>Enabling the BigQuery Interpreter</h2>
+
+<p>In a notebook, to enable the <strong>BigQuery</strong> interpreter, click the <strong>Gear</strong> icon and select <strong>bigquery</strong>.</p>
+
+<h3>Setup service account credentials</h3>
+
+<p>In order to run BigQuery interpreter outside of Google Cloud Engine you need to provide authentication credentials,
+by <a href="https://developers.google.com/identity/protocols/application-default-credentials">following this instructions</a>:</p>
+
+<ul>
+<li>Go to the <a href="https://console.developers.google.com/project/_/apis/credentials">API Console Credentials page</a></li>
+<li>From the project drop-down, select your project.</li>
+<li>On the <code>Credentials</code> page, select the <code>Create credentials</code> drop-down, then select <code>Service account key</code>.</li>
+<li>From the Service account drop-down, select an existing service account or create a new one.</li>
+<li>For <code>Key type</code>, select the <code>JSON</code> key option, then select <code>Create</code>. The file automatically downloads to your computer.</li>
+<li>Put the <code>*.json</code> file you just downloaded in a directory of your choosing. This directory must be private (you can&#39;t let anyone get access to this), but accessible to your Zeppelin instance.</li>
+<li>Set the environment variable <code>GOOGLE_APPLICATION_CREDENTIALS</code> to the path of the JSON file downloaded.
+
+<ul>
+<li>either though GUI: in interpreter configuration page property names in CAPITAL_CASE set up env vars</li>
+<li>or though <code>zeppelin-env.sh</code>: just add it to the end of the file.</li>
+</ul></li>
+</ul>
+
+<h2>Using the BigQuery Interpreter</h2>
+
+<p>In a paragraph, use <code>%bigquery.sql</code> to select the <strong>BigQuery</strong> interpreter and then input SQL statements against your datasets stored in BigQuery.
+You can use <a href="https://cloud.google.com/bigquery/query-reference">BigQuery SQL Reference</a> to build your own SQL.</p>
+
+<p>For Example, SQL to query for top 10 departure delays across airports using the flights public dataset</p>
+<div class="highlight"><pre><code class="bash language-bash" data-lang="bash">%bigquery.sql
+SELECT departure_airport,count<span class="o">(</span><span class="k">case </span>when departure_delay&gt;0 <span class="k">then </span>1 <span class="k">else </span>0 end<span class="o">)</span> as no_of_delays 
+FROM <span class="o">[</span>bigquery-samples:airline_ontime_data.flights<span class="o">]</span> 
+group by departure_airport 
+order by 2 desc 
+limit 10
+</code></pre></div>
+<p>Another Example, SQL to query for most commonly used java packages from the github data hosted in BigQuery </p>
+<div class="highlight"><pre><code class="bash language-bash" data-lang="bash">%bigquery.sql
+SELECT
+  package,
+  COUNT<span class="o">(</span>*<span class="o">)</span> count
+FROM <span class="o">(</span>
+  SELECT
+    REGEXP_EXTRACT<span class="o">(</span>line, r<span class="s1">&#39; ([a-z0-9\._]*)\.&#39;</span><span class="o">)</span> package,
+    id
+  FROM <span class="o">(</span>
+    SELECT
+      SPLIT<span class="o">(</span>content, <span class="s1">&#39;\n&#39;</span><span class="o">)</span> line,
+      id
+    FROM
+      <span class="o">[</span>bigquery-public-data:github_repos.sample_contents<span class="o">]</span>
+    WHERE
+      content CONTAINS <span class="s1">&#39;import&#39;</span>
+      AND sample_path LIKE <span class="s1">&#39;%.java&#39;</span>
+    HAVING
+      LEFT<span class="o">(</span>line, 6<span class="o">)=</span><span class="s1">&#39;import&#39;</span> <span class="o">)</span>
+  GROUP BY
+    package,
+    id <span class="o">)</span>
+GROUP BY
+  1
+ORDER BY
+  count DESC
+LIMIT
+  40
+</code></pre></div>
+<h2>Technical description</h2>
+
+<p>For in-depth technical details on current implementation please refer to <a href="https://github.com/apache/zeppelin/blob/master/bigquery/README.md">bigquery/README.md</a>.</p>
+
+  </div>
+</div>
+
+
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Added: zeppelin/site/docs/0.7.1/interpreter/cassandra.html
URL: http://svn.apache.org/viewvc/zeppelin/site/docs/0.7.1/interpreter/cassandra.html?rev=1789699&view=auto
==============================================================================
--- zeppelin/site/docs/0.7.1/interpreter/cassandra.html (added)
+++ zeppelin/site/docs/0.7.1/interpreter/cassandra.html Fri Mar 31 14:59:26 2017
@@ -0,0 +1,1033 @@
+
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>Apache Zeppelin 0.7.1 Documentation: Cassandra CQL Interpreter for Apache Zeppelin</title>
+    <meta name="description" content="Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance.">
+    <meta name="author" content="The Apache Software Foundation">
+
+    <!-- Enable responsive viewport -->
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+    <!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
+    <!--[if lt IE 9]>
+    <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
+    <![endif]-->
+
+    <link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
+
+    <!-- Le styles -->
+    <link href="/docs/0.7.1/assets/themes/zeppelin/bootstrap/css/bootstrap.css" rel="stylesheet">
+    <link href="/docs/0.7.1/assets/themes/zeppelin/css/style.css?body=1" rel="stylesheet" type="text/css">
+    <link href="/docs/0.7.1/assets/themes/zeppelin/css/syntax.css" rel="stylesheet"  type="text/css" media="screen" /> 
+    <!-- Le fav and touch icons -->
+    <!-- Update these with your own images
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+  <h1></h1>
+</div>
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+
+<h1>Cassandra CQL Interpreter for Apache Zeppelin</h1>
+
+<div id="toc"></div>
+
+<table class="table-configuration">
+  <tr>
+    <th>Name</th>
+    <th>Class</th>
+    <th>Description</th>
+  </tr>
+  <tr>
+    <td>%cassandra</td>
+    <td>CassandraInterpreter</td>
+    <td>Provides interpreter for Apache Cassandra CQL query language</td>
+  </tr>
+</table>
+
+<h2>Enabling Cassandra Interpreter</h2>
+
+<p>In a notebook, to enable the <strong>Cassandra</strong> interpreter, click on the <strong>Gear</strong> icon and select <strong>Cassandra</strong></p>
+
+<p><center>
+ <img src="../assets/themes/zeppelin/img/docs-img/cassandra-InterpreterBinding.png" alt="Interpreter Binding"></p>
+
+<p><img src="../assets/themes/zeppelin/img/docs-img/cassandra-InterpreterSelection.png" alt="Interpreter Selection">
+ </center></p>
+
+<h2>Using the Cassandra Interpreter</h2>
+
+<p>In a paragraph, use <strong><em>%cassandra</em></strong> to select the <strong>Cassandra</strong> interpreter and then input all commands.</p>
+
+<p>To access the interactive help, type <strong>HELP;</strong></p>
+
+<p><center>
+   <img src="../assets/themes/zeppelin/img/docs-img/cassandra-InteractiveHelp.png" alt="Interactive Help">
+ </center></p>
+
+<h2>Interpreter Commands</h2>
+
+<p>The <strong>Cassandra</strong> interpreter accepts the following commands</p>
+
+<p><center>
+  <table class="table-configuration">
+    <tr>
+      <th>Command Type</th>
+      <th>Command Name</th>
+      <th>Description</th>
+    </tr>
+    <tr>
+      <td nowrap>Help command</td>
+      <td>HELP</td>
+      <td>Display the interactive help menu</td>
+    </tr>
+    <tr>
+      <td nowrap>Schema commands</td>
+      <td>DESCRIBE KEYSPACE, DESCRIBE CLUSTER, DESCRIBE TABLES ...</td>
+      <td>Custom commands to describe the Cassandra schema</td>
+    </tr>
+    <tr>
+      <td nowrap>Option commands</td>
+      <td>@consistency, @retryPolicy, @fetchSize ...</td>
+      <td>Inject runtime options to all statements in the paragraph</td>
+    </tr>
+    <tr>
+      <td nowrap>Prepared statement commands</td>
+      <td>@prepare, @bind, @remove_prepared</td>
+      <td>Let you register a prepared command and re-use it later by injecting bound values</td>
+    </tr>
+    <tr>
+      <td nowrap>Native CQL statements</td>
+      <td>All CQL-compatible statements (SELECT, INSERT, CREATE ...)</td>
+      <td>All CQL statements are executed directly against the Cassandra server</td>
+    </tr>
+  </table>
+</center></p>
+
+<h2>CQL statements</h2>
+
+<p>This interpreter is compatible with any CQL statement supported by Cassandra. Ex:</p>
+<div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">users</span><span class="p">(</span><span class="n">login</span><span class="p">,</span><span class="n">name</span><span class="p">)</span> <span class="k">VALUES</span><span class="p">(</span><span class="s1">&#39;jdoe&#39;</span><span class="p">,</span><span class="s1">&#39;John DOE&#39;</span><span class="p">);</span>
+<span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">users</span> <span class="k">WHERE</span> <span class="n">login</span><span class="o">=</span><span class="s1">&#39;jdoe&#39;</span><span class="p">;</span>
+</code></pre></div>
+<p>Each statement should be separated by a semi-colon ( <strong>;</strong> ) except the special commands below:</p>
+
+<ol>
+<li>@prepare</li>
+<li>@bind</li>
+<li>@remove_prepare</li>
+<li>@consistency</li>
+<li>@serialConsistency</li>
+<li>@timestamp</li>
+<li>@retryPolicy</li>
+<li>@fetchSize</li>
+<li>@requestTimeOut</li>
+</ol>
+
+<p>Multi-line statements as well as multiple statements on the same line are also supported as long as they are separated by a semi-colon. Ex:</p>
+<div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="n">USE</span> <span class="n">spark_demo</span><span class="p">;</span>
+
+<span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">albums_by_country</span> <span class="k">LIMIT</span> <span class="mi">1</span><span class="p">;</span> <span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">countries</span> <span class="k">LIMIT</span> <span class="mi">1</span><span class="p">;</span>
+
+<span class="k">SELECT</span> <span class="o">*</span>
+<span class="k">FROM</span> <span class="n">artists</span>
+<span class="k">WHERE</span> <span class="n">login</span><span class="o">=</span><span class="s1">&#39;jlennon&#39;</span><span class="p">;</span>
+</code></pre></div>
+<p>Batch statements are supported and can span multiple lines, as well as DDL(CREATE/ALTER/DROP) statements:</p>
+<div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="k">BEGIN</span> <span class="n">BATCH</span>
+    <span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">users</span><span class="p">(</span><span class="n">login</span><span class="p">,</span><span class="n">name</span><span class="p">)</span> <span class="k">VALUES</span><span class="p">(</span><span class="s1">&#39;jdoe&#39;</span><span class="p">,</span><span class="s1">&#39;John DOE&#39;</span><span class="p">);</span>
+    <span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">users_preferences</span><span class="p">(</span><span class="n">login</span><span class="p">,</span><span class="n">account_type</span><span class="p">)</span> <span class="k">VALUES</span><span class="p">(</span><span class="s1">&#39;jdoe&#39;</span><span class="p">,</span><span class="s1">&#39;BASIC&#39;</span><span class="p">);</span>
+<span class="n">APPLY</span> <span class="n">BATCH</span><span class="p">;</span>
+
+<span class="k">CREATE</span> <span class="k">TABLE</span> <span class="n">IF</span> <span class="k">NOT</span> <span class="k">EXISTS</span> <span class="n">test</span><span class="p">(</span>
+    <span class="k">key</span> <span class="nb">int</span> <span class="k">PRIMARY</span> <span class="k">KEY</span><span class="p">,</span>
+    <span class="n">value</span> <span class="nb">text</span>
+<span class="p">);</span>
+</code></pre></div>
+<p>CQL statements are <strong>case-insensitive</strong> (except for column names and values). This means that the following statements are equivalent and valid:</p>
+<div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">users</span><span class="p">(</span><span class="n">login</span><span class="p">,</span><span class="n">name</span><span class="p">)</span> <span class="k">VALUES</span><span class="p">(</span><span class="s1">&#39;jdoe&#39;</span><span class="p">,</span><span class="s1">&#39;John DOE&#39;</span><span class="p">);</span>
+<span class="k">Insert</span> <span class="k">into</span> <span class="n">users</span><span class="p">(</span><span class="n">login</span><span class="p">,</span><span class="n">name</span><span class="p">)</span> <span class="k">vAlues</span><span class="p">(</span><span class="s1">&#39;hsue&#39;</span><span class="p">,</span><span class="s1">&#39;Helen SUE&#39;</span><span class="p">);</span>
+</code></pre></div>
+<p>The complete list of all CQL statements and versions can be found below:</p>
+
+<p><center>
+ <table class="table-configuration">
+   <tr>
+     <th>Cassandra Version</th>
+     <th>Documentation Link</th>
+   </tr>
+   <tr>
+     <td><strong>3.x</strong></td>
+     <td>
+        <a target="_blank"
+          href="http://docs.datastax.com/en/cql/3.3/cql/cqlIntro.html">
+          http://docs.datastax.com/en/cql/3.3/cql/cqlIntro.html
+        </a>
+     </td>
+   </tr><br>
+   <tr>
+     <td><strong>2.2</strong></td>
+     <td>
+        <a target="_blank"
+          href="http://docs.datastax.com/en/cql/3.3/cql/cqlIntro.html">
+          http://docs.datastax.com/en/cql/3.3/cql/cqlIntro.html
+        </a>
+     </td>
+   </tr>
+   <tr>
+     <td><strong>2.1 &amp; 2.0</strong></td>
+     <td>
+        <a target="_blank"
+          href="http://docs.datastax.com/en/cql/3.1/cql/cql_intro_c.html">
+          http://docs.datastax.com/en/cql/3.1/cql/cql<em>intro</em>c.html
+        </a>
+     </td>
+   </tr>
+   <tr>
+     <td><strong>1.2</strong></td>
+     <td>
+        <a target="_blank"
+          href="http://docs.datastax.com/en/cql/3.0/cql/aboutCQL.html">
+          http://docs.datastax.com/en/cql/3.0/cql/aboutCQL.html
+        </a>
+     </td>
+   </tr>
+ </table>
+</center></p>
+
+<h2>Comments in statements</h2>
+
+<p>It is possible to add comments between statements. Single line comments start with the <strong>hash sign</strong> (#) or <strong>double slashes</strong> (//). Multi-line comments are enclosed between /** and **/. Ex:</p>
+<div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="o">#</span><span class="n">Single</span> <span class="n">line</span> <span class="k">comment</span> <span class="n">style</span> <span class="mi">1</span>
+<span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">users</span><span class="p">(</span><span class="n">login</span><span class="p">,</span><span class="n">name</span><span class="p">)</span> <span class="k">VALUES</span><span class="p">(</span><span class="s1">&#39;jdoe&#39;</span><span class="p">,</span><span class="s1">&#39;John DOE&#39;</span><span class="p">);</span>
+
+<span class="o">//</span><span class="n">Single</span> <span class="n">line</span> <span class="k">comment</span> <span class="n">style</span> <span class="mi">2</span>
+
+<span class="cm">/**</span>
+<span class="cm"> Multi line</span>
+<span class="cm"> comments</span>
+<span class="cm"> **/</span>
+<span class="k">Insert</span> <span class="k">into</span> <span class="n">users</span><span class="p">(</span><span class="n">login</span><span class="p">,</span><span class="n">name</span><span class="p">)</span> <span class="k">vAlues</span><span class="p">(</span><span class="s1">&#39;hsue&#39;</span><span class="p">,</span><span class="s1">&#39;Helen SUE&#39;</span><span class="p">);</span>
+</code></pre></div>
+<h2>Syntax Validation</h2>
+
+<p>The interpreters is shipped with a built-in syntax validator. This validator only checks for basic syntax errors.</p>
+
+<p>All CQL-related syntax validation is delegated directly to <strong>Cassandra</strong></p>
+
+<p>Most of the time, syntax errors are due to <strong>missing semi-colons</strong> between statements or <strong>typo errors</strong>.</p>
+
+<h2>Schema commands</h2>
+
+<p>To make schema discovery easier and more interactive, the following commands are supported:</p>
+
+<p><center>
+ <table class="table-configuration">
+   <tr>
+     <th>Command</th>
+     <th>Description</th>
+   </tr>
+   <tr>
+     <td><strong>DESCRIBE CLUSTER;</strong></td>
+     <td>Show the current cluster name and its partitioner</td>
+   </tr>
+   <tr>
+     <td><strong>DESCRIBE KEYSPACES;</strong></td>
+     <td>List all existing keyspaces in the cluster and their configuration (replication factor, durable write ...)</td>
+   </tr>
+   <tr>
+     <td><strong>DESCRIBE TABLES;</strong></td>
+     <td>List all existing keyspaces in the cluster and for each, all the tables name</td>
+   </tr>
+   <tr>
+     <td><strong>DESCRIBE TYPES;</strong></td>
+     <td>List all existing keyspaces in the cluster and for each, all the user-defined types name</strong></td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE FUNCTIONS;</strong></td>
+     <td>List all existing keyspaces in the cluster and for each, all the functions name</td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE AGGREGATES;</strong></td>
+     <td>List all existing keyspaces in the cluster and for each, all the aggregates name</td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE MATERIALIZED VIEWS;</strong></td>
+     <td>List all existing keyspaces in the cluster and for each, all the materialized views name</td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE KEYSPACE &lt;keyspace<em>name&gt;;</strong></td>
+     <td>Describe the given keyspace configuration and all its table details (name, columns, ...)</td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE TABLE (&lt;keyspace</em>name&gt;).&lt;table<em>name&gt;;</strong></td>
+     <td>
+        Describe the given table. If the keyspace is not provided, the current logged in keyspace is used.
+        If there is no logged in keyspace, the default system keyspace is used.
+        If no table is found, an error message is raised
+     </td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE TYPE (&lt;keyspace</em>name&gt;).&lt;type<em>name&gt;;</strong></td>
+     <td>
+        Describe the given type(UDT). If the keyspace is not provided, the current logged in keyspace is used.
+        If there is no logged in keyspace, the default system keyspace is used.
+        If no type is found, an error message is raised
+     </td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE FUNCTION (&lt;keyspace</em>name&gt;).&lt;function<em>name&gt;;</strong></td>
+     <td>Describe the given function. If the keyspace is not provided, the current logged in keyspace is used.
+         If there is no logged in keyspace, the default system keyspace is used.
+         If no function is found, an error message is raised
+     </td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE AGGREGATE (&lt;keyspace</em>name&gt;).&lt;aggregate<em>name&gt;;</strong></td>
+     <td>Describe the given aggregate. If the keyspace is not provided, the current logged in keyspace is used.
+         If there is no logged in keyspace, the default system keyspace is used.
+         If no aggregate is found, an error message is raised
+     </td>
+   </tr>
+   <tr>
+     <td nowrap><strong>DESCRIBE MATERIALIZED VIEW (&lt;keyspace</em>name&gt;).&lt;view_name&gt;;</strong></td>
+     <td>Describe the given view. If the keyspace is not provided, the current logged in keyspace is used.
+         If there is no logged in keyspace, the default system keyspace is used.
+         If no view is found, an error message is raised
+     </td>
+   </tr>
+ </table>
+</center></p>
+
+<p>The schema objects (cluster, keyspace, table, type, function and aggregate) are displayed in a tabular format.
+There is a drop-down menu on the top left corner to expand objects details. On the top right menu is shown the Icon legend.</p>
+
+<p><center>
+  <img src="../assets/themes/zeppelin/img/docs-img/cassandra-DescribeSchema.png" alt="Describe Schema">
+</center></p>
+
+<h2>Runtime Parameters</h2>
+
+<p>Sometimes you want to be able to pass runtime query parameters to your statements.</p>
+
+<p>Those parameters are not part of the CQL specs and are specific to the interpreter.</p>
+
+<p>Below is the list of all parameters:</p>
+
+<p><center>
+ <table class="table-configuration">
+   <tr>
+     <th>Parameter</th>
+     <th>Syntax</th>
+     <th>Description</th>
+   </tr>
+   <tr>
+     <td nowrap>Consistency Level</td>
+     <td><strong>@consistency=<em>value</em></strong></td>
+     <td>Apply the given consistency level to all queries in the paragraph</td>
+   </tr>
+   <tr>
+     <td nowrap>Serial Consistency Level</td>
+     <td><strong>@serialConsistency=<em>value</em></strong></td>
+     <td>Apply the given serial consistency level to all queries in the paragraph</td>
+   </tr>
+   <tr>
+     <td nowrap>Timestamp</td>
+     <td><strong>@timestamp=<em>long value</em></strong></td>
+     <td>
+        Apply the given timestamp to all queries in the paragraph.
+        Please note that timestamp value passed directly in CQL statement will override this value
+      </td>
+   </tr>
+   <tr>
+     <td nowrap>Retry Policy</td>
+     <td><strong>@retryPolicy=<em>value</em></strong></td>
+     <td>Apply the given retry policy to all queries in the paragraph</td>
+   </tr>
+   <tr>
+     <td nowrap>Fetch Size</td>
+     <td><strong>@fetchSize=<em>integer value</em></strong></td>
+     <td>Apply the given fetch size to all queries in the paragraph</td>
+   </tr>
+   <tr>
+     <td nowrap>Request Time Out</td>
+     <td><strong>@requestTimeOut=<em>integer value</em></strong></td>
+     <td>Apply the given request timeout <strong>in millisecs</strong> to all queries in the paragraph</td>
+   </tr><br>
+ </table>
+</center></p>
+
+<p>Some parameters only accept restricted values:</p>
+
+<p><center>
+ <table class="table-configuration">
+   <tr>
+     <th>Parameter</th>
+     <th>Possible Values</th>
+   </tr>
+   <tr>
+     <td nowrap>Consistency Level</td>
+     <td><strong>ALL, ANY, ONE, TWO, THREE, QUORUM, LOCAL<em>ONE, LOCAL</em>QUORUM, EACH<em>QUORUM</strong></td>
+   </tr>
+   <tr>
+     <td nowrap>Serial Consistency Level</td>
+     <td><strong>SERIAL, LOCAL</em>SERIAL</strong></td>
+   </tr>
+   <tr>
+     <td nowrap>Timestamp</td>
+     <td>Any long value</td>
+   </tr>
+   <tr>
+     <td nowrap>Retry Policy</td>
+     <td><strong>DEFAULT, DOWNGRADING<em>CONSISTENCY, FALLTHROUGH, LOGGING</em>DEFAULT, LOGGING<em>DOWNGRADING, LOGGING</em>FALLTHROUGH</strong></td>
+   </tr>
+   <tr>
+     <td nowrap>Fetch Size</td>
+     <td>Any integer value</td>
+   </tr>
+ </table>
+</center></p>
+
+<blockquote>
+<p>Please note that you should <strong>not</strong> add semi-colon ( <strong>;</strong> ) at the end of each parameter statement</p>
+</blockquote>
+
+<p>Some examples:</p>
+<div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="k">CREATE</span> <span class="k">TABLE</span> <span class="n">IF</span> <span class="k">NOT</span> <span class="k">EXISTS</span> <span class="n">spark_demo</span><span class="p">.</span><span class="n">ts</span><span class="p">(</span>
+    <span class="k">key</span> <span class="nb">int</span> <span class="k">PRIMARY</span> <span class="k">KEY</span><span class="p">,</span>
+    <span class="n">value</span> <span class="nb">text</span>
+<span class="p">);</span>
+<span class="k">TRUNCATE</span> <span class="n">spark_demo</span><span class="p">.</span><span class="n">ts</span><span class="p">;</span>
+
+<span class="o">//</span> <span class="k">Timestamp</span> <span class="k">in</span> <span class="n">the</span> <span class="n">past</span>
+<span class="o">@</span><span class="k">timestamp</span><span class="o">=</span><span class="mi">10</span>
+
+<span class="o">//</span> <span class="k">Force</span> <span class="k">timestamp</span> <span class="n">directly</span> <span class="k">in</span> <span class="n">the</span> <span class="k">first</span> <span class="k">insert</span>
+<span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">spark_demo</span><span class="p">.</span><span class="n">ts</span><span class="p">(</span><span class="k">key</span><span class="p">,</span><span class="n">value</span><span class="p">)</span> <span class="k">VALUES</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="s1">&#39;first insert&#39;</span><span class="p">)</span> <span class="k">USING</span> <span class="k">TIMESTAMP</span> <span class="mi">100</span><span class="p">;</span>
+
+<span class="o">//</span> <span class="k">Select</span> <span class="k">some</span> <span class="k">data</span> <span class="k">to</span> <span class="n">make</span> <span class="n">the</span> <span class="n">clock</span> <span class="n">turn</span>
+<span class="k">SELECT</span> <span class="o">*</span> <span class="k">FROM</span> <span class="n">spark_demo</span><span class="p">.</span><span class="n">albums</span> <span class="k">LIMIT</span> <span class="mi">100</span><span class="p">;</span>
+
+<span class="o">//</span> <span class="n">Now</span> <span class="k">insert</span> <span class="k">using</span> <span class="n">the</span> <span class="k">timestamp</span> <span class="k">parameter</span> <span class="k">set</span> <span class="k">at</span> <span class="n">the</span> <span class="n">beginning</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
+<span class="k">INSERT</span> <span class="k">INTO</span> <span class="n">spark_demo</span><span class="p">.</span><span class="n">ts</span><span class="p">(</span><span class="k">key</span><span class="p">,</span><span class="n">value</span><span class="p">)</span> <span class="k">VALUES</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="s1">&#39;second insert&#39;</span><span class="p">);</span>
+
+<span class="o">//</span> <span class="k">Check</span> <span class="k">for</span> <span class="n">the</span> <span class="k">result</span><span class="p">.</span> <span class="n">You</span> <span class="n">should</span> <span class="n">see</span> <span class="s1">&#39;first insert&#39;</span>
+<span class="k">SELECT</span> <span class="n">value</span> <span class="k">FROM</span> <span class="n">spark_demo</span><span class="p">.</span><span class="n">ts</span> <span class="k">WHERE</span> <span class="k">key</span><span class="o">=</span><span class="mi">1</span><span class="p">;</span>
+</code></pre></div>
+<p>Some remarks about query parameters:</p>
+
+<blockquote>
+<ol>
+<li><strong>many</strong> query parameters can be set in the same paragraph</li>
+<li>if the <strong>same</strong> query parameter is set many time with different values, the interpreter only take into account the first value</li>
+<li>each query parameter applies to <strong>all CQL statements</strong> in the same paragraph, unless you override the option using plain CQL text (like forcing timestamp with the USING clause)</li>
+<li>the order of each query parameter with regard to CQL statement does not matter</li>
+</ol>
+</blockquote>
+
+<h2>Support for Prepared Statements</h2>
+
+<p>For performance reason, it is better to prepare statements before-hand and reuse them later by providing bound values.</p>
+
+<p>This interpreter provides 3 commands to handle prepared and bound statements:</p>
+
+<ol>
+<li><strong>@prepare</strong></li>
+<li><strong>@bind</strong></li>
+<li><strong>@remove_prepared</strong></li>
+</ol>
+
+<p>Example:</p>
+<div class="highlight"><pre><code class="text language-text" data-lang="text">@prepare[statement-name]=...
+
+@bind[statement-name]=’text’, 1223, ’2015-07-30 12:00:01’, null, true, [‘list_item1’, ’list_item2’]
+
+@bind[statement-name-with-no-bound-value]
+
+@remove_prepare[statement-name]
+</code></pre></div>
+<h4>@prepare</h4>
+
+<p>You can use the syntax <em>&quot;@prepare[statement-name]=SELECT...&quot;</em> to create a prepared statement.
+The <em>statement-name</em> is <strong>mandatory</strong> because the interpreter prepares the given statement with the Java driver and
+saves the generated prepared statement in an <strong>internal hash map</strong>, using the provided <em>statement-name</em> as search key.</p>
+
+<blockquote>
+<p>Please note that this internal prepared statement map is shared with <strong>all notebooks</strong> and <strong>all paragraphs</strong> because
+there is only one instance of the interpreter for Cassandra</p>
+
+<p>If the interpreter encounters <strong>many</strong> @prepare for the <strong>same <em>statement-name</em> (key)</strong>, only the <strong>first</strong> statement will be taken into account.</p>
+</blockquote>
+
+<p>Example:</p>
+<div class="highlight"><pre><code class="text language-text" data-lang="text">@prepare[select]=SELECT * FROM spark_demo.albums LIMIT ?
+
+@prepare[select]=SELECT * FROM spark_demo.artists LIMIT ?
+</code></pre></div>
+<p>For the above example, the prepared statement is <code>SELECT * FROM spark_demo.albums LIMIT ?</code>.
+`SELECT * FROM spark_demo.artists LIMIT ? is ignored because an entry already exists in the prepared statements map with the key select.</p>
+
+<p>In the context of <strong>Zeppelin</strong>, a notebook can be scheduled to be executed at regular interval,
+thus it is necessary to <strong>avoid re-preparing many time the same statement (considered an anti-pattern)</strong>.</p>
+
+<h4>@bind</h4>
+
+<p>Once the statement is prepared (possibly in a separated notebook/paragraph). You can bind values to it:</p>
+<div class="highlight"><pre><code class="text language-text" data-lang="text">@bind[select_first]=10
+</code></pre></div>
+<p>Bound values are not mandatory for the <strong>@bind</strong> statement. However if you provide bound values, they need to comply to some syntax:</p>
+
+<ul>
+<li>String values should be enclosed between simple quotes ( ‘ )</li>
+<li>Date values should be enclosed between simple quotes ( ‘ ) and respect the formats:
+
+<ol>
+<li>yyyy-MM-dd HH:MM:ss</li>
+<li>yyyy-MM-dd HH:MM:ss.SSS</li>
+</ol></li>
+<li><strong>null</strong> is parsed as-is</li>
+<li><strong>boolean</strong> (true|false) are parsed as-is</li>
+<li>collection values must follow the <strong><a href="http://docs.datastax.com/en/cql/3.1/cql/cql_using/use_collections_c.html">standard CQL syntax</a></strong>:
+
+<ul>
+<li>list: [‘list<em>item1’, ’list</em>item2’, ...]</li>
+<li>set: {‘set<em>item1’, ‘set</em>item2’, …}</li>
+<li>map: {‘key1’: ‘val1’, ‘key2’: ‘val2’, …}</li>
+</ul></li>
+<li><strong>tuple</strong> values should be enclosed between parenthesis (see <strong><a href="http://docs.datastax.com/en/cql/3.1/cql/cql_reference/tupleType.html">Tuple CQL syntax</a></strong>): (‘text’, 123, true)</li>
+<li><strong>udt</strong> values should be enclosed between brackets (see <strong><a href="http://docs.datastax.com/en/cql/3.1/cql/cql_using/cqlUseUDT.html">UDT CQL syntax</a></strong>): {stree<em>name: ‘Beverly Hills’, number: 104, zip</em>code: 90020, state: ‘California’, …}</li>
+</ul>
+
+<blockquote>
+<p>It is possible to use the @bind statement inside a batch:</p>
+<div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="k">BEGIN</span> <span class="n">BATCH</span>
+   <span class="o">@</span><span class="n">bind</span><span class="p">[</span><span class="n">insert_user</span><span class="p">]</span><span class="o">=</span><span class="s1">&#39;jdoe&#39;</span><span class="p">,</span><span class="s1">&#39;John DOE&#39;</span>
+   <span class="k">UPDATE</span> <span class="n">users</span> <span class="k">SET</span> <span class="n">age</span> <span class="o">=</span> <span class="mi">27</span> <span class="k">WHERE</span> <span class="n">login</span><span class="o">=</span><span class="s1">&#39;hsue&#39;</span><span class="p">;</span>
+<span class="n">APPLY</span> <span class="n">BATCH</span><span class="p">;</span>
+</code></pre></div></blockquote>
+
+<h4>@remove_prepare</h4>
+
+<p>To avoid for a prepared statement to stay forever in the prepared statement map, you can use the
+<strong>@remove_prepare[statement-name]</strong> syntax to remove it.
+Removing a non-existing prepared statement yields no error.</p>
+
+<h2>Using Dynamic Forms</h2>
+
+<p>Instead of hard-coding your CQL queries, it is possible to use <strong><a href="http://zeppelin.apache.org/docs/0.6.0-SNAPSHOT/manual/dynamicform.html">Zeppelin dynamic form</a></strong> syntax to inject simple value or multiple choices forms.</p>
+
+<p>The legacy mustache syntax ( <strong>{{ }}</strong> ) to bind input text and select form is still supported but is deprecated and will be removed in future releases.</p>
+
+<blockquote>
+<p><strong>Legacy</strong>
+The syntax for simple parameter is: <strong>{{input_Label=default value}}</strong>. The default value is mandatory because the first time the paragraph is executed,
+we launch the CQL query before rendering the form so at least one value should be provided.</p>
+
+<p>The syntax for multiple choices parameter is: <strong>{{input_Label=value1 | value2 | … | valueN }}</strong>. By default the first choice is used for CQL query
+the first time the paragraph is executed.</p>
+</blockquote>
+
+<p>Example:</p>
+<div class="highlight"><pre><code class="text language-text" data-lang="text">#Secondary index on performer style
+SELECT name, country, performer
+FROM spark_demo.performers
+WHERE name=&#39;${performer=Sheryl Crow|Doof|Fanfarlo|Los Paranoia}&#39;
+AND styles CONTAINS &#39;${style=Rock}&#39;;
+</code></pre></div>
+<p>In the above example, the first CQL query will be executed for <em>performer=&#39;Sheryl Crow&#39; AND style=&#39;Rock&#39;</em>.
+For subsequent queries, you can change the value directly using the form.</p>
+
+<blockquote>
+<p>Please note that we enclosed the <strong>${ }</strong> block between simple quotes ( <strong>&#39;</strong> ) because Cassandra expects a String here.
+We could have also use the <strong>${style=&#39;Rock&#39;}</strong> syntax but this time, the value displayed on the form is <strong><em>&#39;Rock&#39;</em></strong> and not <strong><em>Rock</em></strong>.</p>
+</blockquote>
+
+<p>It is also possible to use dynamic forms for <strong>prepared statements</strong>:</p>
+<div class="highlight"><pre><code class="text language-text" data-lang="text">@bind[select]==&#39;${performer=Sheryl Crow|Doof|Fanfarlo|Los Paranoia}&#39;, &#39;${style=Rock}&#39;
+</code></pre></div>
+<h2>Shared states</h2>
+
+<p>It is possible to execute many paragraphs in parallel. However, at the back-end side, we’re still using synchronous queries.
+<em>Asynchronous execution</em> is only possible when it is possible to return a <code>Future</code> value in the <code>InterpreterResult</code>.
+It may be an interesting proposal for the <strong>Zeppelin</strong> project.</p>
+
+<p>Recently, <strong>Zeppelin</strong> allows you to choose the level of isolation for your interpreters (see <strong><a href="http://zeppelin.apache.org/docs/0.6.0-SNAPSHOT/manual/interpreters.html">Interpreter Binding Mode</a></strong> ).</p>
+
+<p>Long story short, you have 3 available bindings:</p>
+
+<ul>
+<li><strong>shared</strong> : <em>same JVM</em> and <em>same Interpreter instance</em> for all notes</li>
+<li><strong>scoped</strong> : <em>same JVM</em> but <em>different Interpreter instances</em>, one for each note</li>
+<li><strong>isolated</strong>: <em>different JVM</em> running a <em>single Interpreter instance</em>, one JVM for each note</li>
+</ul>
+
+<p>Using the <strong>shared</strong> binding, the same <code>com.datastax.driver.core.Session</code> object is used for <strong>all</strong> notes and paragraphs.
+Consequently, if you use the <strong>USE <em>keyspace name</em>;</strong> statement to log into a keyspace, it will change the keyspace for
+<strong>all current users</strong> of the <strong>Cassandra</strong> interpreter because we only create 1 <code>com.datastax.driver.core.Session</code> object
+per instance of <strong>Cassandra</strong> interpreter.</p>
+
+<p>The same remark does apply to the <strong>prepared statement hash map</strong>, it is shared by <strong>all users</strong> using the same instance of <strong>Cassandra</strong> interpreter.</p>
+
+<p>When using <strong>scoped</strong> binding, in the <em>same JVM</em> <strong>Zeppelin</strong> will create multiple instances of the Cassandra interpreter, thus 
+multiple <code>com.datastax.driver.core.Session</code> objects. <strong>Beware of resource and memory usage using this binding !</strong> </p>
+
+<p>The <strong>isolated</strong> mode is the most extreme and will create as many JVM/<code>com.datastax.driver.core.Session</code> object as there are distinct notes.</p>
+
+<h2>Interpreter Configuration</h2>
+
+<p>To configure the <strong>Cassandra</strong> interpreter, go to the <strong>Interpreter</strong> menu and scroll down to change the parameters.
+The <strong>Cassandra</strong> interpreter is using the official <strong><a href="https://github.com/datastax/java-driver">Cassandra Java Driver</a></strong> and most of the parameters are used
+to configure the Java driver</p>
+
+<p>Below are the configuration parameters and their default value.</p>
+
+<p><table class="table-configuration">
+   <tr>
+     <th>Property Name</th>
+     <th>Description</th>
+     <th>Default Value</th>
+   </tr>
+   <tr>
+     <td>cassandra.cluster</td>
+     <td>Name of the Cassandra cluster to connect to</td>
+     <td>Test Cluster</td>
+   </tr>
+   <tr>
+     <td>cassandra.compression.protocol</td>
+     <td>On wire compression. Possible values are: NONE, SNAPPY, LZ4</td>
+     <td>NONE</td>
+   </tr>
+   <tr>
+     <td>cassandra.credentials.username</td>
+     <td>If security is enable, provide the login</td>
+     <td>none</td>
+   </tr>
+   <tr>
+     <td>cassandra.credentials.password</td>
+     <td>If security is enable, provide the password</td>
+     <td>none</td>
+   </tr>
+   <tr>
+     <td>cassandra.hosts</td>
+     <td>
+        Comma separated Cassandra hosts (DNS name or IP address).
+        <br/>
+        Ex: &#39;192.168.0.12,node2,node3&#39;
+      </td>
+     <td>localhost</td>
+   </tr>
+   <tr>
+     <td>cassandra.interpreter.parallelism</td>
+     <td>Number of concurrent paragraphs(queries block) that can be executed</td>
+     <td>10</td>
+   </tr>
+   <tr>
+     <td>cassandra.keyspace</td>
+     <td>
+        Default keyspace to connect to.
+        <strong>
+          It is strongly recommended to let the default value
+          and prefix the table name with the actual keyspace
+          in all of your queries
+        </strong>
+     </td>
+     <td>system</td>
+   </tr>
+   <tr>
+     <td>cassandra.load.balancing.policy</td>
+     <td>
+        Load balancing policy. Default = <em>new TokenAwarePolicy(new DCAwareRoundRobinPolicy())</em>
+        To Specify your own policy, provide the <strong>fully qualify class name (FQCN)</strong> of your policy.
+        At runtime the interpreter will instantiate the policy using
+        <strong>Class.forName(FQCN)</strong>
+     </td>
+     <td>DEFAULT</td>
+   </tr>
+   <tr>
+     <td>cassandra.max.schema.agreement.wait.second</td>
+     <td>Cassandra max schema agreement wait in second</td>
+     <td>10</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.core.connection.per.host.local</td>
+     <td>Protocol V2 and below default = 2. Protocol V3 and above default = 1</td>
+     <td>2</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.core.connection.per.host.remote</td>
+     <td>Protocol V2 and below default = 1. Protocol V3 and above default = 1</td>
+     <td>1</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.heartbeat.interval.seconds</td>
+     <td>Cassandra pool heartbeat interval in secs</td>
+     <td>30</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.idle.timeout.seconds</td>
+     <td>Cassandra idle time out in seconds</td>
+     <td>120</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.max.connection.per.host.local</td>
+     <td>Protocol V2 and below default = 8. Protocol V3 and above default = 1</td>
+     <td>8</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.max.connection.per.host.remote</td>
+     <td>Protocol V2 and below default = 2. Protocol V3 and above default = 1</td>
+     <td>2</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.max.request.per.connection.local</td>
+     <td>Protocol V2 and below default = 128. Protocol V3 and above default = 1024</td>
+     <td>128</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.max.request.per.connection.remote</td>
+     <td>Protocol V2 and below default = 128. Protocol V3 and above default = 256</td>
+     <td>128</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.new.connection.threshold.local</td>
+     <td>Protocol V2 and below default = 100. Protocol V3 and above default = 800</td>
+     <td>100</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.new.connection.threshold.remote</td>
+     <td>Protocol V2 and below default = 100. Protocol V3 and above default = 200</td>
+     <td>100</td>
+   </tr>
+   <tr>
+     <td>cassandra.pooling.pool.timeout.millisecs</td>
+     <td>Cassandra pool time out in millisecs</td>
+     <td>5000</td>
+   </tr>
+   <tr>
+     <td>cassandra.protocol.version</td>
+     <td>Cassandra binary protocol version</td>
+     <td>4</td>
+   </tr>
+   <tr>
+     <td>cassandra.query.default.consistency</td>
+     <td>
+      Cassandra query default consistency level
+      <br/>
+      Available values: ONE, TWO, THREE, QUORUM, LOCAL<em>ONE, LOCAL</em>QUORUM, EACH<em>QUORUM, ALL
+     </td>
+     <td>ONE</td>
+   </tr>
+   <tr>
+     <td>cassandra.query.default.fetchSize</td>
+     <td>Cassandra query default fetch size</td>
+     <td>5000</td>
+   </tr>
+   <tr>
+     <td>cassandra.query.default.serial.consistency</td>
+     <td>
+      Cassandra query default serial consistency level
+      <br/>
+      Available values: SERIAL, LOCAL</em>SERIAL
+     </td>
+     <td>SERIAL</td>
+   </tr>
+   <tr>
+     <td>cassandra.reconnection.policy</td>
+     <td>
+        Cassandra Reconnection Policy.
+        Default = new ExponentialReconnectionPolicy(1000, 10 * 60 * 1000)
+        To Specify your own policy, provide the <strong>fully qualify class name (FQCN)</strong> of your policy.
+        At runtime the interpreter will instantiate the policy using
+        <strong>Class.forName(FQCN)</strong>
+     </td>
+     <td>DEFAULT</td>
+   </tr>
+   <tr>
+     <td>cassandra.retry.policy</td>
+     <td>
+        Cassandra Retry Policy.
+        Default = DefaultRetryPolicy.INSTANCE
+        To Specify your own policy, provide the <strong>fully qualify class name (FQCN)</strong> of your policy.
+        At runtime the interpreter will instantiate the policy using
+        <strong>Class.forName(FQCN)</strong>
+     </td>
+     <td>DEFAULT</td>
+   </tr>
+   <tr>
+     <td>cassandra.socket.connection.timeout.millisecs</td>
+     <td>Cassandra socket default connection timeout in millisecs</td>
+     <td>500</td>
+   </tr>
+   <tr>
+     <td>cassandra.socket.read.timeout.millisecs</td>
+     <td>Cassandra socket read timeout in millisecs</td>
+     <td>12000</td>
+   </tr>
+   <tr>
+     <td>cassandra.socket.tcp.no_delay</td>
+     <td>Cassandra socket TCP no delay</td>
+     <td>true</td>
+   </tr>
+   <tr>
+     <td>cassandra.speculative.execution.policy</td>
+     <td>
+        Cassandra Speculative Execution Policy.
+        Default = NoSpeculativeExecutionPolicy.INSTANCE
+        To Specify your own policy, provide the <strong>fully qualify class name (FQCN)</strong> of your policy.
+        At runtime the interpreter will instantiate the policy using
+        <strong>Class.forName(FQCN)</strong>
+     </td>
+     <td>DEFAULT</td>
+   </tr>
+ </table></p>
+
+<h2>Change Log</h2>
+
+<p><strong>3.0</strong> <em>(Zeppelin 0.7.1)</em> :</p>
+
+<ul>
+<li>Update documentation</li>
+<li>Update interactive documentation</li>
+<li>Add support for binary protocol <strong>V4</strong></li>
+<li>Implement new <code>@requestTimeOut</code> runtime option</li>
+<li>Upgrade Java driver version to <strong>3.0.1</strong></li>
+<li>Allow interpreter to add dynamic forms programmatically when using FormType.SIMPLE</li>
+<li>Allow dynamic form using default Zeppelin syntax</li>
+<li>Fixing typo on FallThroughPolicy</li>
+<li>Look for data in AngularObjectRegistry before creating dynamic form</li>
+<li>Add missing support for <code>ALTER</code> statements</li>
+</ul>
+
+<p><strong>2.0</strong> <em>(Zeppelin 0.7.1)</em> :</p>
+
+<ul>
+<li>Update help menu and add changelog</li>
+<li>Add Support for <strong>User Defined Functions</strong>, <strong>User Defined Aggregates</strong> and <strong>Materialized Views</strong></li>
+<li>Upgrade Java driver version to <strong>3.0.0-rc1</strong></li>
+</ul>
+
+<p><strong>1.0</strong> <em>(Zeppelin 0.5.5-incubating)</em> :</p>
+
+<ul>
+<li>Initial version</li>
+</ul>
+
+<h2>Bugs &amp; Contacts</h2>
+
+<p>If you encounter a bug for this interpreter, please create a <strong><a href="https://issues.apache.org/jira/browse/ZEPPELIN-382?jql=project%20%3D%20ZEPPELIN">JIRA</a></strong> ticket and ping me on Twitter
+ at <strong><a href="https://twitter.com/doanduyhai">@doanduyhai</a></strong></p>
+
+  </div>
+</div>
+
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