Author: zjffdu
Date: Sun Sep 29 07:53:07 2019
New Revision: 1867698

URL: http://svn.apache.org/viewvc?rev=1867698&view=rev
Log:
Add missing interpreter

Added:
    zeppelin/site/docs/0.8.2/interpreter/livy.html
    zeppelin/site/docs/0.8.2/interpreter/pig.html

Added: zeppelin/site/docs/0.8.2/interpreter/livy.html
URL: 
http://svn.apache.org/viewvc/zeppelin/site/docs/0.8.2/interpreter/livy.html?rev=1867698&view=auto
==============================================================================
--- zeppelin/site/docs/0.8.2/interpreter/livy.html (added)
+++ zeppelin/site/docs/0.8.2/interpreter/livy.html Sun Sep 29 07:53:07 2019
@@ -0,0 +1,514 @@
+
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>Apache Zeppelin 0.8.2 Documentation: Livy Interpreter for Apache 
Zeppelin</title>
+    <meta name="description" content="Livy is an open source REST interface 
for interacting with Spark from anywhere. It supports executing snippets of 
code or programs in a Spark context that runs locally or in YARN.">
+    <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 -->
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+    <script src="http://html5shim.googlecode.com/svn/trunk/html5.js";></script>
+    <![endif]-->
+
+    <link 
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rel="stylesheet">
+
+    <!-- Le styles -->
+    <link 
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rel="stylesheet" type="text/css">
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rel="stylesheet"  type="text/css" media="screen" /> 
+    <!-- Le fav and touch icons -->
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+              <a class="navbar-brand-version" href="/docs/0.8.2"
+                 style="font-size: 15px; color: white;"> 0.8.2
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+        <nav class="navbar-collapse collapse" role="navigation">
+          <ul class="nav navbar-nav">
+            <li>
+              <a href="#" data-toggle="dropdown" class="dropdown-toggle">Quick 
Start <b class="caret"></b></a>
+              <ul class="dropdown-menu">
+                <li class="title"><span>Getting Started</span></li>
+                <li><a 
href="/docs/0.8.2/quickstart/install.html">Install</a></li>
+                <li><a href="/docs/0.8.2/quickstart/explore_ui.html">Explore 
UI</a></li>
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+                <li><a 
href="/docs/0.8.2/quickstart/python_with_zeppelin.html">Python with 
Zeppelin</a></li>
+              </ul>
+            </li>
+
+            <li>
+              <a href="#" data-toggle="dropdown" 
class="dropdown-toggle">Usage<b class="caret"></b></a>
+              <ul class="dropdown-menu scrollable-menu">
+                <li class="title"><span>Dynamic Form</span></li>
+                <li><a href="/docs/0.8.2/usage/dynamic_form/intro.html">What 
is Dynamic Form?</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Display System</span></li>
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+                <li><a 
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Display</a></li>
+                <li><a 
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using Backend API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/display_system/angular_frontend.html">Angular Display 
using Frontend API</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Interpreter</span></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/overview.html">Overview</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/interpreter_binding_mode.html">Interpreter 
Binding Mode</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/user_impersonation.html">User 
Impersonation</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/dependency_management.html">Dependency 
Management</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/installation.html">Installing 
Interpreters</a></li>
+                <!--<li><a 
href="/docs/0.8.2/usage/interpreter/dynamic_loading.html">Dynamic Interpreter 
Loading (Experimental)</a></li>-->
+                <li><a 
href="/docs/0.8.2/usage/interpreter/execution_hooks.html">Execution Hooks 
(Experimental)</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Other Features</span></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/publishing_paragraphs.html">Publishing 
Paragraphs</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/personalized_mode.html">Personalized 
Mode</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/customizing_homepage.html">Customizing 
Zeppelin Homepage</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/notebook_actions.html">Notebook 
Actions</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/cron_scheduler.html">Cron 
Scheduler</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/zeppelin_context.html">Zeppelin 
Context</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>REST API</span></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/interpreter.html">Interpreter API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/zeppelin_server.html">Zeppelin Server 
API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/notebook.html">Notebook API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/notebook_repository.html">Notebook Repository 
API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/configuration.html">Configuration API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/credential.html">Credential API</a></li>
+                <li><a href="/docs/0.8.2/usage/rest_api/helium.html">Helium 
API</a></li>
+              </ul>
+            </li>
+
+            <li>
+              <a href="#" data-toggle="dropdown" 
class="dropdown-toggle">Setup<b class="caret"></b></a>
+              <ul class="dropdown-menu scrollable-menu">
+                <li class="title"><span>Basics</span></li>
+                <li><a href="/docs/0.8.2/setup/basics/how_to_build.html">How 
to Build Zeppelin</a></li>
+                <li><a 
href="/docs/0.8.2/setup/basics/multi_user_support.html">Multi-user 
Support</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Deployment</span></li>
+                <!--<li><a 
href="/docs/0.8.2/setup/deployment/docker.html">Docker Image for 
Zeppelin</a></li>-->
+                <li><a 
href="/docs/0.8.2/setup/deployment/spark_cluster_mode.html#spark-standalone-mode">Spark
 Cluster Mode: Standalone</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/spark_cluster_mode.html#spark-on-yarn-mode">Spark
 Cluster Mode: YARN</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/spark_cluster_mode.html#spark-on-mesos-mode">Spark
 Cluster Mode: Mesos</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/flink_and_spark_cluster.html">Zeppelin with 
Flink, Spark Cluster</a></li>
+                <li><a href="/docs/0.8.2/setup/deployment/cdh.html">Zeppelin 
on CDH</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/virtual_machine.html">Zeppelin on VM: 
Vagrant</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Security</span></li>
+                <li><a 
href="/docs/0.8.2/setup/security/authentication_nginx.html">HTTP Basic Auth 
using NGINX</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/shiro_authentication.html">Shiro 
Authentication</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/notebook_authorization.html">Notebook 
Authorization</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/datasource_authorization.html">Data Source 
Authorization</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/http_security_headers.html">HTTP Security 
Headers</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Notebook Storage</span></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-local-git-repository">Git
 Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-s3">S3 
Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-azure">Azure 
Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-zeppelinhub">ZeppelinHub
 Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-mongodb">MongoDB
 Storage</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Operation</span></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/configuration.html">Configuration</a></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/proxy_setting.html">Proxy Setting</a></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/upgrading.html">Upgrading</a></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/trouble_shooting.html">Trouble 
Shooting</a></li>
+              </ul>
+            </li>
+
+            <li>
+              <a href="#" data-toggle="dropdown" 
class="dropdown-toggle">Interpreter <b class="caret"></b></a>
+              <ul class="dropdown-menu scrollable-menu">
+                <li class="title"><span>Interpreters</span></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/overview.html">Overview</a></li>
+                <li role="separator" class="divider"></li>
+                <li><a href="/docs/0.8.2/interpreter/spark.html">Spark</a></li>
+                <li><a href="/docs/0.8.2/interpreter/jdbc.html">JDBC</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/python.html">Python</a></li>
+                <li role="separator" class="divider"></li>
+                <li><a 
href="/docs/0.8.2/interpreter/alluxio.html">Alluxio</a></li>
+                <li><a href="/docs/0.8.2/interpreter/beam.html">Beam</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/bigquery.html">BigQuery</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/cassandra.html">Cassandra</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/elasticsearch.html">Elasticsearch</a></li>
+                <li><a href="/docs/0.8.2/interpreter/flink.html">Flink</a></li>
+                <li><a href="/docs/0.8.2/interpreter/geode.html">Geode</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/groovy.html">Groovy</a></li>
+                <li><a href="/docs/0.8.2/interpreter/hbase.html">HBase</a></li>
+                <li><a href="/docs/0.8.2/interpreter/hdfs.html">HDFS</a></li>
+                <li><a href="/docs/0.8.2/interpreter/hive.html">Hive</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/ignite.html">Ignite</a></li>
+                <li><a href="/docs/0.8.2/interpreter/kylin.html">Kylin</a></li>
+                <li><a href="/docs/0.8.2/interpreter/lens.html">Lens</a></li>
+                <li><a href="/docs/0.8.2/interpreter/livy.html">Livy</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/markdown.html">Markdown</a></li>
+                <li><a href="/docs/0.8.2/interpreter/neo4j.html">Neo4j</a></li>
+                <li><a href="/docs/0.8.2/interpreter/pig.html">Pig</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/postgresql.html">Postgresql, HAWQ</a></li>
+                <li><a href="/docs/0.8.2/interpreter/r.html">R</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/scalding.html">Scalding</a></li>
+                <li><a href="/docs/0.8.2/interpreter/scio.html">Scio</a></li>
+                <li><a href="/docs/0.8.2/interpreter/shell.html">Shell</a></li>
+              </ul>
+            </li>
+            <li>
+              <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>Extending Zeppelin</span></li>
+                <li><a 
href="/docs/0.8.2/development/writing_zeppelin_interpreter.html">Writing 
Zeppelin Interpreter</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Helium (Experimental)</span></li>
+                <li><a 
href="/docs/0.8.2/development/helium/overview.html">Overview</a></li>
+                <li><a 
href="/docs/0.8.2/development/helium/writing_application.html">Writing Helium 
Application</a></li>
+                <li><a 
href="/docs/0.8.2/development/helium/writing_spell.html">Writing Helium 
Spell</a></li>
+                <li><a 
href="/docs/0.8.2/development/helium/writing_visualization_basic.html">Writing 
Helium Visualization: Basics</a></li>
+                <li><a 
href="/docs/0.8.2/development/helium/writing_visualization_transformation.html">Writing
 Helium Visualization: Transformation</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Contributing to Zeppelin</span></li>
+                <li><a href="/docs/0.8.2/setup/basics/how_to_build.html">How 
to Build Zeppelin</a></li>
+                <li><a 
href="/docs/0.8.2/development/contribution/useful_developer_tools.html">Useful 
Developer Tools</a></li>
+                <li><a 
href="/docs/0.8.2/development/contribution/how_to_contribute_code.html">How to 
Contribute (code)</a></li>
+                <li><a 
href="/docs/0.8.2/development/contribution/how_to_contribute_website.html">How 
to Contribute (website)</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>External Resources</span></li>
+                <li><a target="_blank" href="">Mailing List</a></li>
+                <li><a target="_blank" href="">Apache Zeppelin Wiki</a></li>
+                <li><a target="_blank" href="">Stackoverflow Questions about 
Zeppelin</a></li>
+              </ul>
+            </li>
+            <li>
+              <a href="/docs/0.8.2/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 Livy 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>Livy Interpreter for Apache Zeppelin</h1>
+
+<div id="toc"></div>
+
+<h2>Overview</h2>
+
+<p><a href="http://livy.io/";>Livy</a> is an open source REST interface for 
interacting with Spark from anywhere. It supports executing snippets of code or 
programs in a Spark context that runs locally or in YARN.</p>
+
+<ul>
+<li>Interactive Scala, Python and R shells</li>
+<li>Batch submissions in Scala, Java, Python</li>
+<li>Multi users can share the same server (impersonation support)</li>
+<li>Can be used for submitting jobs from anywhere with REST</li>
+<li>Does not require any code change to your programs</li>
+</ul>
+
+<h3>Requirements</h3>
+
+<p>Additional requirements for the Livy interpreter are:</p>
+
+<ul>
+<li>Spark 1.3 or above.</li>
+<li>Livy server.</li>
+</ul>
+
+<h2>Configuration</h2>
+
+<p>We added some common configurations for spark, and you can set any 
configuration you want.
+You can find all Spark configurations in <a 
href="http://spark.apache.org/docs/latest/configuration.html#available-properties";>here</a>.
+And instead of starting property with <code>spark.</code> it should be 
replaced with <code>livy.spark.</code>.
+Example: <code>spark.driver.memory</code> to 
<code>livy.spark.driver.memory</code></p>
+
+<table class="table-configuration">
+  <tr>
+    <th>Property</th>
+    <th>Default</th>
+    <th>Description</th>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.url</td>
+    <td>http://localhost:8998</td>
+    <td>URL where livy server is running</td>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.spark.sql.maxResult</td>
+    <td>1000</td>
+    <td>Max number of Spark SQL result to display.</td>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.spark.sql.field.truncate</td>
+    <td>true</td>
+    <td>Whether to truncate field values longer than 20 characters or not</td>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.session.create_timeout</td>
+    <td>120</td>
+    <td>Timeout in seconds for session creation</td>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.displayAppInfo</td>
+    <td>true</td>
+    <td>Whether to display app info</td>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.pull_status.interval.millis</td>
+    <td>1000</td>
+    <td>The interval for checking paragraph execution status</td>
+  </tr>
+  <tr>
+    <td>livy.spark.driver.cores</td>
+    <td></td>
+    <td>Driver cores. ex) 1, 2.</td>
+  </tr>
+    <tr>
+    <td>livy.spark.driver.memory</td>
+    <td></td>
+    <td>Driver memory. ex) 512m, 32g.</td>
+  </tr>
+    <tr>
+    <td>livy.spark.executor.instances</td>
+    <td></td>
+    <td>Executor instances. ex) 1, 4.</td>
+  </tr>
+    <tr>
+    <td>livy.spark.executor.cores</td>
+    <td></td>
+    <td>Num cores per executor. ex) 1, 4.</td>
+  </tr>
+  <tr>
+    <td>livy.spark.executor.memory</td>
+    <td></td>
+    <td>Executor memory per worker instance. ex) 512m, 32g.</td>
+  </tr>
+  <tr>
+    <td>livy.spark.dynamicAllocation.enabled</td>
+    <td></td>
+    <td>Use dynamic resource allocation. ex) True, False.</td>
+  </tr>
+  <tr>
+    <td>livy.spark.dynamicAllocation.cachedExecutorIdleTimeout</td>
+    <td></td>
+    <td>Remove an executor which has cached data blocks.</td>
+  </tr>
+  <tr>
+    <td>livy.spark.dynamicAllocation.minExecutors</td>
+    <td></td>
+    <td>Lower bound for the number of executors.</td>
+  </tr>
+  <tr>
+    <td>livy.spark.dynamicAllocation.initialExecutors</td>
+    <td></td>
+    <td>Initial number of executors to run.</td>
+  </tr>
+  <tr>
+    <td>livy.spark.dynamicAllocation.maxExecutors</td>
+    <td></td>
+    <td>Upper bound for the number of executors.</td>
+  </tr>
+    <tr>
+      <td>livy.spark.jars.packages</td>
+      <td></td>
+      <td>Adding extra libraries to livy interpreter</td>
+    </tr>
+  <tr>
+    <td>zeppelin.livy.ssl.trustStore</td>
+    <td></td>
+    <td>client trustStore file. Used when livy ssl is enabled</td>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.ssl.trustStorePassword</td>
+    <td></td>
+    <td>password for trustStore file. Used when livy ssl is enabled</td>
+  </tr>
+  <tr>
+    <td>zeppelin.livy.http.headers</td>
+    <td>key_1: value_1; key_2: value_2</td>
+    <td>custom http headers when calling livy rest api. Each http header is 
separated by `;`, and each header is one key value pair where key value is 
separated by `:`</td>
+  </tr>
+</table>
+
+<p><strong>We remove livy.spark.master in zeppelin-0.7. Because we sugguest 
user to use livy 0.3 in zeppelin-0.7. And livy 0.3 don&#39;t allow to specify 
livy.spark.master, it enfornce yarn-cluster mode.</strong></p>
+
+<h2>Adding External libraries</h2>
+
+<p>You can load dynamic library to livy interpreter by set 
<code>livy.spark.jars.packages</code> property to comma-separated list of maven 
coordinates of jars to include on the driver and executor classpaths. The 
format for the coordinates should be groupId:artifactId:version.</p>
+
+<p>Example</p>
+
+<table class="table-configuration">
+  <tr>
+    <th>Property</th>
+    <th>Example</th>
+    <th>Description</th>
+  </tr>
+  <tr>
+      <td>livy.spark.jars.packages</td>
+      <td>io.spray:spray-json_2.10:1.3.1</td>
+      <td>Adding extra libraries to livy interpreter</td>
+    </tr>
+  </table>
+
+<h2>How to use</h2>
+
+<p>Basically, you can use</p>
+
+<p><strong>spark</strong></p>
+<div class="highlight"><pre><code class="scala language-scala" 
data-lang="scala"><span class="o">%</span><span class="n">livy</span><span 
class="o">.</span><span class="n">spark</span>
+<span class="n">sc</span><span class="o">.</span><span class="n">version</span>
+</code></pre></div>
+<p><strong>pyspark</strong></p>
+<div class="highlight"><pre><code class="python language-python" 
data-lang="python"><span class="o">%</span><span class="n">livy</span><span 
class="o">.</span><span class="n">pyspark</span>
+<span class="k">print</span> <span class="s">&quot;1&quot;</span>
+</code></pre></div>
+<p><strong>sparkR</strong></p>
+<div class="highlight"><pre><code class="r language-r" data-lang="r"><span 
class="o">%livy.sparkr</span>
+<span class="o">hello &lt;- function( name ) {</span>
+<span class="o">    sprintf( &quot;Hello, %</span>s<span class="s">&quot;, 
name );</span>
+<span class="s">}</span>
+
+<span class="s">hello(&quot;</span>livy<span class="s">&quot;</span><span 
class="err">)</span>
+</code></pre></div>
+<h2>Impersonation</h2>
+
+<p>When Zeppelin server is running with authentication enabled,
+then this interpreter utilizes Livy’s user impersonation feature
+i.e. sends extra parameter for creating and running a session 
(&quot;proxyUser&quot;: &quot;${loggedInUser}&quot;).
+This is particularly useful when multi users are sharing a Notebook server.</p>
+
+<h2>Apply Zeppelin Dynamic Forms</h2>
+
+<p>You can leverage <a href="../usage/dynamic_form/intro.html">Zeppelin 
Dynamic Form</a>. Form templates is only avalible for livy sql interpreter.</p>
+<div class="highlight"><pre><code class="sql language-sql" 
data-lang="sql"><span class="o">%</span><span class="n">livy</span><span 
class="p">.</span><span class="k">sql</span>
+<span class="k">select</span> <span class="o">*</span> <span 
class="k">from</span> <span class="n">products</span> <span 
class="k">where</span> <span class="err">${</span><span 
class="n">product_id</span><span class="o">=</span><span 
class="mi">1</span><span class="err">}</span>
+</code></pre></div>
+<p>And creating dynamic formst programmatically is not feasible in livy 
interpreter, because ZeppelinContext is not available in livy interpreter.</p>
+
+<h2>Shared SparkContext</h2>
+
+<p>Starting from livy 0.5 which is supported by Zeppelin 0.8.0, SparkContext 
is shared between scala, python, r and sql.
+That means you can query the table via <code>%livy.sql</code> when this table 
is registered in <code>%livy.spark</code>, <code>%livy.pyspark</code>, 
<code>$livy.sparkr</code>.</p>
+
+<h2>FAQ</h2>
+
+<p>Livy debugging: If you see any of these in error console</p>
+
+<blockquote>
+<p>Connect to livyhost:8998 [livyhost/127.0.0.1, livyhost/0:0:0:0:0:0:0:1] 
failed: Connection refused</p>
+</blockquote>
+
+<p>Looks like the livy server is not up yet or the config is wrong</p>
+
+<blockquote>
+<p>Exception: Session not found, Livy server would have restarted, or lost 
session.</p>
+</blockquote>
+
+<p>The session would have timed out, you may need to restart the 
interpreter.</p>
+
+<blockquote>
+<p>Blacklisted configuration values in session config: spark.master</p>
+</blockquote>
+
+<p>Edit <code>conf/spark-blacklist.conf</code> file in livy server and comment 
out <code>#spark.master</code> line.</p>
+
+<p>If you choose to work on livy in <code>apps/spark/java</code> directory in 
<a href="https://github.com/cloudera/hue";>https://github.com/cloudera/hue</a>,
+copy <code>spark-user-configurable-options.template</code> to 
<code>spark-user-configurable-options.conf</code> file in livy server and 
comment out <code>#spark.master</code>.</p>
+
+  </div>
+</div>
+
+
+      <hr>
+      <footer>
+        <!-- <p>&copy; 2019 The Apache Software Foundation</p>-->
+      </footer>
+    </div>
+
+    
+
+
+  <script type="text/javascript">
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new 
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+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
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+  ga('require', 'linkid', 'linkid.js');
+  ga('send', 'pageview');
+
+</script>
+
+
+
+  </body>
+</html>
+

Added: zeppelin/site/docs/0.8.2/interpreter/pig.html
URL: 
http://svn.apache.org/viewvc/zeppelin/site/docs/0.8.2/interpreter/pig.html?rev=1867698&view=auto
==============================================================================
--- zeppelin/site/docs/0.8.2/interpreter/pig.html (added)
+++ zeppelin/site/docs/0.8.2/interpreter/pig.html Sun Sep 29 07:53:07 2019
@@ -0,0 +1,430 @@
+
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>Apache Zeppelin 0.8.2 Documentation: Pig Interpreter for Apache 
Zeppelin</title>
+    <meta name="description" content="Apache Pig is a platform for analyzing 
large data sets that consists of a high-level language for expressing data 
analysis programs, coupled with infrastructure for evaluating these programs.">
+    <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/0.8.2/assets/themes/zeppelin/bootstrap/css/bootstrap.css" 
rel="stylesheet">
+    <link href="/docs/0.8.2/assets/themes/zeppelin/css/style.css?body=1" 
rel="stylesheet" type="text/css">
+    <link href="/docs/0.8.2/assets/themes/zeppelin/css/syntax.css" 
rel="stylesheet"  type="text/css" media="screen" /> 
+    <!-- Le fav and touch icons -->
+    <!-- Update these with your own images
+    <link rel="shortcut icon" href="images/favicon.ico">
+    <link rel="apple-touch-icon" href="images/apple-touch-icon.png">
+    <link rel="apple-touch-icon" sizes="72x72" 
href="images/apple-touch-icon-72x72.png">
+    <link rel="apple-touch-icon" sizes="114x114" 
href="images/apple-touch-icon-114x114.png">
+    -->
+
+    <!-- Js -->
+    <script src="https://code.jquery.com/jquery-1.10.2.min.js";></script>
+    <script 
src="/docs/0.8.2/assets/themes/zeppelin/bootstrap/js/bootstrap.min.js"></script>
+    <script src="/docs/0.8.2/assets/themes/zeppelin/js/docs.js"></script>
+    <script src="/docs/0.8.2/assets/themes/zeppelin/js/anchor.min.js"></script>
+    <script src="/docs/0.8.2/assets/themes/zeppelin/js/toc.js"></script>
+    <script src="/docs/0.8.2/assets/themes/zeppelin/js/lunr.min.js"></script>
+    <script src="/docs/0.8.2/assets/themes/zeppelin/js/search.js"></script>    
+
+    <!-- atom & rss feed -->
+    <link href="/docs/0.8.2/atom.xml" type="application/atom+xml" 
rel="alternate" title="Sitewide ATOM Feed">
+    <link href="/docs/0.8.2/rss.xml" type="application/rss+xml" 
rel="alternate" title="Sitewide RSS Feed">
+  </head>
+
+  <body>
+    
+        <div id="menu" class="navbar navbar-inverse navbar-fixed-top" 
role="navigation">
+      <div class="container navbar-container">
+        <div class="navbar-header">
+          <button type="button" class="navbar-toggle" data-toggle="collapse" 
data-target=".navbar-collapse">
+            <span class="sr-only">Toggle navigation</span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+            <span class="icon-bar"></span>
+          </button>
+          <div class="navbar-brand">
+            <a class="navbar-brand-main" href="http://zeppelin.apache.org";>
+              <img 
src="/docs/0.8.2/assets/themes/zeppelin/img/zeppelin_logo.png" width="50"
+                   style="margin-top: -2px;" alt="I'm zeppelin">
+              <span style="margin-left: 5px; font-size: 27px;">Zeppelin</span>
+              <a class="navbar-brand-version" href="/docs/0.8.2"
+                 style="font-size: 15px; color: white;"> 0.8.2
+              </a>
+            </a>
+          </div>
+        </div>
+        <nav class="navbar-collapse collapse" role="navigation">
+          <ul class="nav navbar-nav">
+            <li>
+              <a href="#" data-toggle="dropdown" class="dropdown-toggle">Quick 
Start <b class="caret"></b></a>
+              <ul class="dropdown-menu">
+                <li class="title"><span>Getting Started</span></li>
+                <li><a 
href="/docs/0.8.2/quickstart/install.html">Install</a></li>
+                <li><a href="/docs/0.8.2/quickstart/explore_ui.html">Explore 
UI</a></li>
+                <li><a 
href="/docs/0.8.2/quickstart/tutorial.html">Tutorial</a></li>
+                <li role="separator" class="divider"></li>
+                <li><a 
href="/docs/0.8.2/quickstart/spark_with_zeppelin.html">Spark with 
Zeppelin</a></li>
+                <li><a 
href="/docs/0.8.2/quickstart/sql_with_zeppelin.html">SQL with Zeppelin</a></li>
+                <li><a 
href="/docs/0.8.2/quickstart/python_with_zeppelin.html">Python with 
Zeppelin</a></li>
+              </ul>
+            </li>
+
+            <li>
+              <a href="#" data-toggle="dropdown" 
class="dropdown-toggle">Usage<b class="caret"></b></a>
+              <ul class="dropdown-menu scrollable-menu">
+                <li class="title"><span>Dynamic Form</span></li>
+                <li><a href="/docs/0.8.2/usage/dynamic_form/intro.html">What 
is Dynamic Form?</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Display System</span></li>
+                <li><a 
href="/docs/0.8.2/usage/display_system/basic.html#text">Text Display</a></li>
+                <li><a 
href="/docs/0.8.2/usage/display_system/basic.html#html">HTML Display</a></li>
+                <li><a 
href="/docs/0.8.2/usage/display_system/basic.html#table">Table Display</a></li>
+                <li><a 
href="/docs/0.8.2/usage/display_system/basic.html#network">Network 
Display</a></li>
+                <li><a 
href="/docs/0.8.2/usage/display_system/angular_backend.html">Angular Display 
using Backend API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/display_system/angular_frontend.html">Angular Display 
using Frontend API</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Interpreter</span></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/overview.html">Overview</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/interpreter_binding_mode.html">Interpreter 
Binding Mode</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/user_impersonation.html">User 
Impersonation</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/dependency_management.html">Dependency 
Management</a></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/installation.html">Installing 
Interpreters</a></li>
+                <!--<li><a 
href="/docs/0.8.2/usage/interpreter/dynamic_loading.html">Dynamic Interpreter 
Loading (Experimental)</a></li>-->
+                <li><a 
href="/docs/0.8.2/usage/interpreter/execution_hooks.html">Execution Hooks 
(Experimental)</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Other Features</span></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/publishing_paragraphs.html">Publishing 
Paragraphs</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/personalized_mode.html">Personalized 
Mode</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/customizing_homepage.html">Customizing 
Zeppelin Homepage</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/notebook_actions.html">Notebook 
Actions</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/cron_scheduler.html">Cron 
Scheduler</a></li>
+                <li><a 
href="/docs/0.8.2/usage/other_features/zeppelin_context.html">Zeppelin 
Context</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>REST API</span></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/interpreter.html">Interpreter API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/zeppelin_server.html">Zeppelin Server 
API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/notebook.html">Notebook API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/notebook_repository.html">Notebook Repository 
API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/configuration.html">Configuration API</a></li>
+                <li><a 
href="/docs/0.8.2/usage/rest_api/credential.html">Credential API</a></li>
+                <li><a href="/docs/0.8.2/usage/rest_api/helium.html">Helium 
API</a></li>
+              </ul>
+            </li>
+
+            <li>
+              <a href="#" data-toggle="dropdown" 
class="dropdown-toggle">Setup<b class="caret"></b></a>
+              <ul class="dropdown-menu scrollable-menu">
+                <li class="title"><span>Basics</span></li>
+                <li><a href="/docs/0.8.2/setup/basics/how_to_build.html">How 
to Build Zeppelin</a></li>
+                <li><a 
href="/docs/0.8.2/setup/basics/multi_user_support.html">Multi-user 
Support</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Deployment</span></li>
+                <!--<li><a 
href="/docs/0.8.2/setup/deployment/docker.html">Docker Image for 
Zeppelin</a></li>-->
+                <li><a 
href="/docs/0.8.2/setup/deployment/spark_cluster_mode.html#spark-standalone-mode">Spark
 Cluster Mode: Standalone</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/spark_cluster_mode.html#spark-on-yarn-mode">Spark
 Cluster Mode: YARN</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/spark_cluster_mode.html#spark-on-mesos-mode">Spark
 Cluster Mode: Mesos</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/flink_and_spark_cluster.html">Zeppelin with 
Flink, Spark Cluster</a></li>
+                <li><a href="/docs/0.8.2/setup/deployment/cdh.html">Zeppelin 
on CDH</a></li>
+                <li><a 
href="/docs/0.8.2/setup/deployment/virtual_machine.html">Zeppelin on VM: 
Vagrant</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Security</span></li>
+                <li><a 
href="/docs/0.8.2/setup/security/authentication_nginx.html">HTTP Basic Auth 
using NGINX</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/shiro_authentication.html">Shiro 
Authentication</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/notebook_authorization.html">Notebook 
Authorization</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/datasource_authorization.html">Data Source 
Authorization</a></li>
+                <li><a 
href="/docs/0.8.2/setup/security/http_security_headers.html">HTTP Security 
Headers</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Notebook Storage</span></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-local-git-repository">Git
 Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-s3">S3 
Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-azure">Azure 
Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-zeppelinhub">ZeppelinHub
 Storage</a></li>
+                <li><a 
href="/docs/0.8.2/setup/storage/storage.html#notebook-storage-in-mongodb">MongoDB
 Storage</a></li>
+                <li role="separator" class="divider"></li>
+                <li class="title"><span>Operation</span></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/configuration.html">Configuration</a></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/proxy_setting.html">Proxy Setting</a></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/upgrading.html">Upgrading</a></li>
+                <li><a 
href="/docs/0.8.2/setup/operation/trouble_shooting.html">Trouble 
Shooting</a></li>
+              </ul>
+            </li>
+
+            <li>
+              <a href="#" data-toggle="dropdown" 
class="dropdown-toggle">Interpreter <b class="caret"></b></a>
+              <ul class="dropdown-menu scrollable-menu">
+                <li class="title"><span>Interpreters</span></li>
+                <li><a 
href="/docs/0.8.2/usage/interpreter/overview.html">Overview</a></li>
+                <li role="separator" class="divider"></li>
+                <li><a href="/docs/0.8.2/interpreter/spark.html">Spark</a></li>
+                <li><a href="/docs/0.8.2/interpreter/jdbc.html">JDBC</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/python.html">Python</a></li>
+                <li role="separator" class="divider"></li>
+                <li><a 
href="/docs/0.8.2/interpreter/alluxio.html">Alluxio</a></li>
+                <li><a href="/docs/0.8.2/interpreter/beam.html">Beam</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/bigquery.html">BigQuery</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/cassandra.html">Cassandra</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/elasticsearch.html">Elasticsearch</a></li>
+                <li><a href="/docs/0.8.2/interpreter/flink.html">Flink</a></li>
+                <li><a href="/docs/0.8.2/interpreter/geode.html">Geode</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/groovy.html">Groovy</a></li>
+                <li><a href="/docs/0.8.2/interpreter/hbase.html">HBase</a></li>
+                <li><a href="/docs/0.8.2/interpreter/hdfs.html">HDFS</a></li>
+                <li><a href="/docs/0.8.2/interpreter/hive.html">Hive</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/ignite.html">Ignite</a></li>
+                <li><a href="/docs/0.8.2/interpreter/kylin.html">Kylin</a></li>
+                <li><a href="/docs/0.8.2/interpreter/lens.html">Lens</a></li>
+                <li><a href="/docs/0.8.2/interpreter/livy.html">Livy</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/markdown.html">Markdown</a></li>
+                <li><a href="/docs/0.8.2/interpreter/neo4j.html">Neo4j</a></li>
+                <li><a href="/docs/0.8.2/interpreter/pig.html">Pig</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/postgresql.html">Postgresql, HAWQ</a></li>
+                <li><a href="/docs/0.8.2/interpreter/r.html">R</a></li>
+                <li><a 
href="/docs/0.8.2/interpreter/scalding.html">Scalding</a></li>
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+
+    <div class="content">
+      
+<!--<div class="hero-unit Pig Interpreter for Apache Zeppelin">
+  <h1></h1>
+</div>
+-->
+
+<div class="row">
+  <div class="col-md-12">
+    <h1>Pig Interpreter for Apache Zeppelin</h1>
+
+<div id="toc"></div>
+
+<h2>Overview</h2>
+
+<p><a href="https://pig.apache.org/";>Apache Pig</a> is a platform for 
analyzing large data sets that consists of 
+a high-level language for expressing data analysis programs, 
+coupled with infrastructure for evaluating these programs. 
+The salient property of Pig programs is that their structure is amenable to 
substantial parallelization, 
+which in turns enables them to handle very large data sets.</p>
+
+<h2>Supported interpreter type</h2>
+
+<ul>
+<li><p><code>%pig.script</code> (default Pig interpreter, so you can use 
<code>%pig</code>)</p>
+
+<p><code>%pig.script</code> is like the Pig grunt shell. Anything you can run 
in Pig grunt shell can be run in <code>%pig.script</code> interpreter, it is 
used for running Pig script where you don’t need to visualize the data, it is 
suitable for data munging. </p></li>
+<li><p><code>%pig.query</code></p>
+
+<p><code>%pig.query</code> is a little different compared with 
<code>%pig.script</code>. It is used for exploratory data analysis via Pig 
latin where you can leverage Zeppelin’s visualization ability. There&#39;re 2 
minor differences in the last statement between <code>%pig.script</code> and 
<code>%pig.query</code></p>
+
+<ul>
+<li>No pig alias in the last statement in <code>%pig.query</code> (read the 
examples below).</li>
+<li>The last statement must be in single line in <code>%pig.query</code></li>
+</ul></li>
+</ul>
+
+<h2>How to use</h2>
+
+<h3>How to setup Pig execution modes.</h3>
+
+<ul>
+<li><p>Local Mode</p>
+
+<p>Set <code>zeppelin.pig.execType</code> as <code>local</code>.</p></li>
+<li><p>MapReduce Mode</p>
+
+<p>Set <code>zeppelin.pig.execType</code> as <code>mapreduce</code>. 
HADOOP_CONF_DIR needs to be specified in 
<code>ZEPPELIN_HOME/conf/zeppelin-env.sh</code>.</p></li>
+<li><p>Tez Local Mode</p>
+
+<p>Only Tez 0.7 is supported. Set <code>zeppelin.pig.execType</code> as 
<code>tez_local</code>.</p></li>
+<li><p>Tez Mode</p>
+
+<p>Only Tez 0.7 is supported. Set <code>zeppelin.pig.execType</code> as 
<code>tez</code>. HADOOP_CONF_DIR and TEZ_CONF_DIR needs to be specified in 
<code>ZEPPELIN_HOME/conf/zeppelin-env.sh</code>.</p></li>
+<li><p>Spark Local Mode</p>
+
+<p>Only Spark 1.6.x is supported, by default it is Spark 1.6.3. Set 
<code>zeppelin.pig.execType</code> as <code>spark_local</code>.</p></li>
+<li><p>Spark Mode</p>
+
+<p>Only Spark 1.6.x is supported, by default it is Spark 1.6.3. Set 
<code>zeppelin.pig.execType</code> as <code>spark</code>. For now, only 
yarn-client mode is supported. To enable it, you need to set property 
<code>SPARK_MASTER</code> to yarn-client and set <code>SPARK_JAR</code> to the 
spark assembly jar.</p></li>
+</ul>
+
+<h3>How to choose custom Spark Version</h3>
+
+<p>By default, Pig Interpreter would use Spark 1.6.3 built with scala 2.10, if 
you want to use another spark version or scala version, 
+you need to rebuild Zeppelin by specifying the custom Spark version via 
-Dpig.spark.version=<custom_spark_version> and scala version via 
-Dpig.scala.version=<scala_version> in the maven build command.</p>
+
+<h3>How to configure interpreter</h3>
+
+<p>At the Interpreters menu, you have to create a new Pig interpreter. Pig 
interpreter has below properties by default.
+And you can set any Pig properties here which will be passed to Pig engine. 
(like tez.queue.name &amp; mapred.job.queue.name).
+Besides, we use paragraph title as job name if it exists, else use the last 
line of Pig script. 
+So you can use that to find app running in YARN RM UI.</p>
+
+<table class="table-configuration">
+    <tr>
+        <th>Property</th>
+        <th>Default</th>
+        <th>Description</th>
+    </tr>
+    <tr>
+        <td>zeppelin.pig.execType</td>
+        <td>mapreduce</td>
+        <td>Execution mode for pig runtime. local | mapreduce | tez_local | 
tez | spark_local | spark </td>
+    </tr>
+    <tr>
+        <td>zeppelin.pig.includeJobStats</td>
+        <td>false</td>
+        <td>whether display jobStats info in <code>%pig.script</code></td>
+    </tr>
+    <tr>
+        <td>zeppelin.pig.maxResult</td>
+        <td>1000</td>
+        <td>max row number displayed in <code>%pig.query</code></td>
+    </tr>
+    <tr>
+        <td>tez.queue.name</td>
+        <td>default</td>
+        <td>queue name for tez engine</td>
+    </tr>
+    <tr>
+        <td>mapred.job.queue.name</td>
+        <td>default</td>
+        <td>queue name for mapreduce engine</td>
+    </tr>
+    <tr>
+        <td>SPARK_MASTER</td>
+        <td>local</td>
+        <td>local | yarn-client</td>
+    </tr>
+    <tr>
+        <td>SPARK_JAR</td>
+        <td></td>
+        <td>The spark assembly jar, both jar in local or hdfs is supported. 
Put it on hdfs could have
+        performance benefit</td>
+    </tr>
+</table>  
+
+<h3>Example</h3>
+
+<h5>pig</h5>
+<div class="highlight"><pre><code class="text language-text" 
data-lang="text">%pig
+
+bankText = load &#39;bank.csv&#39; using PigStorage(&#39;;&#39;);
+bank = foreach bankText generate $0 as age, $1 as job, $2 as marital, $3 as 
education, $5 as balance; 
+bank = filter bank by age != &#39;&quot;age&quot;&#39;;
+bank = foreach bank generate (int)age, 
REPLACE(job,&#39;&quot;&#39;,&#39;&#39;) as job, REPLACE(marital, 
&#39;&quot;&#39;, &#39;&#39;) as marital, (int)(REPLACE(balance, 
&#39;&quot;&#39;, &#39;&#39;)) as balance;
+store bank into &#39;clean_bank.csv&#39; using PigStorage(&#39;;&#39;); -- 
this statement is optional, it just show you that most of time %pig.script is 
used for data munging before querying the data. 
+</code></pre></div>
+<h5>pig.query</h5>
+
+<p>Get the number of each age where age is less than 30</p>
+<div class="highlight"><pre><code class="text language-text" 
data-lang="text">%pig.query
+
+bank_data = filter bank by age &lt; 30;
+b = group bank_data by age;
+foreach b generate group, COUNT($1);
+</code></pre></div>
+<p>The same as above, but use dynamic text form so that use can specify the 
variable maxAge in textbox. 
+(See screenshot below). Dynamic form is a very cool feature of Zeppelin, you 
can refer this <a href="(../usage/dynamic_form/intro.html">link</a>) for 
details.</p>
+<div class="highlight"><pre><code class="text language-text" 
data-lang="text">%pig.query
+
+bank_data = filter bank by age &lt; ${maxAge=40};
+b = group bank_data by age;
+foreach b generate group, COUNT($1) as count;
+</code></pre></div>
+<p>Get the number of each age for specific marital type, 
+also use dynamic form here. User can choose the marital type in the dropdown 
list (see screenshot below).</p>
+<div class="highlight"><pre><code class="text language-text" 
data-lang="text">%pig.query
+
+bank_data = filter bank by 
marital==&#39;${marital=single,single|divorced|married}&#39;;
+b = group bank_data by age;
+foreach b generate group, COUNT($1) as count;
+</code></pre></div>
+<p>The above examples are in the Pig tutorial note in Zeppelin, you can check 
that for details. Here&#39;s the screenshot.</p>
+
+<p><img class="img-responsive" width="1024px" style="margin:0 auto; padding: 
26px;" src="/docs/0.8.2/assets/themes/zeppelin/img/pig_zeppelin_tutorial.png" 
/></p>
+
+<p>Data is shared between <code>%pig</code> and <code>%pig.query</code>, so 
that you can do some common work in <code>%pig</code>, 
+and do different kinds of query based on the data of <code>%pig</code>. 
+Besides, we recommend you to specify alias explicitly so that the 
visualization can display 
+the column name correctly. In the above example 2 and 3 of 
<code>%pig.query</code>, we name <code>COUNT($1)</code> as <code>count</code>. 
+If you don&#39;t do this, then we will name it using position. 
+E.g. in the above first example of <code>%pig.query</code>, we will use 
<code>col_1</code> in chart to represent <code>COUNT($1)</code>.</p>
+
+  </div>
+</div>
+
+
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