Apache Zeppelin 0.10.1 Documentation: Lens Interpreter for Apache Zeppelin

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Apache Zeppelin 0.10.1 Documentation: Lens Interpreter for Apache Zeppelin</title> <meta name="description" content="Apache Lens provides an Unified Analytics interface. Lens aims to cut the Data Analytics silos by providing a single view of data across multiple tiered data stores and optimal execution environment for the analytical query. 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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/0.10.1" style="font-size: 15px; color: white;"> 0.10.1 </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/0.10.1/quickstart/install.html">Install</a></li> <li><a href="/docs/0.10.1/quickstart/explore_ui.html">Explore UI</a></li> <li><a href="/docs/0.10.1/quickstart/tutorial.html">Tutorial</a></li> <li role="separator" class="divider"></li> <li class="title"><span>Run Mode</span></li> <li><a href="/docs/0.10.1/quickstart/kubernetes.html">Kubernetes</a></li> <li><a href="/docs/0.10.1/quickstart/docker.html">Docker</a></li> <li><a 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href="/docs/0.10.1/usage/rest_api/interpreter.html">Interpreter API</a></li> <li><a href="/docs/0.10.1/usage/rest_api/zeppelin_server.html">Zeppelin Server API</a></li> <li><a href="/docs/0.10.1/usage/rest_api/notebook.html">Notebook API</a></li> <li><a href="/docs/0.10.1/usage/rest_api/notebook_repository.html">Notebook Repository API</a></li> <li><a href="/docs/0.10.1/usage/rest_api/configuration.html">Configuration API</a></li> <li><a href="/docs/0.10.1/usage/rest_api/credential.html">Credential API</a></li> <li><a href="/docs/0.10.1/usage/rest_api/helium.html">Helium API</a></li> <li class="title"><span>Zeppelin SDK</span></li> <li><a href="/docs/0.10.1/usage/zeppelin_sdk/client_api.html">Client API</a></li> <li><a href="/docs/0.10.1/usage/zeppelin_sdk/session_api.html">Session 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/0.10.1/setup/basics/how_to_build.html">How to Build Zeppelin</a></li> <li><a href="/docs/0.10.1/setup/basics/hadoop_integration.html">Hadoop Integration</a></li> <li><a href="/docs/0.10.1/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/0.10.1/setup/deployment/spark_cluster_mode.html#spark-standalone-mode">Spark Cluster Mode: Standalone</a></li> <li><a href="/docs/0.10.1/setup/deployment/spark_cluster_mode.html#spark-on-yarn-mode">Spark Cluster Mode: YARN</a></li> <li><a href="/docs/0.10.1/setup/deployment/spark_cluster_mode.html#spark-on-mesos-mode">Spark Cluster Mode: Mesos</a></li> <li><a href="/docs/0.10.1/setup/deployment/flink_and_spark_cluster.html">Zeppelin with Flink, Spark Cluster</a></li> <li><a href="/docs/0.10.1/setup/deployment/cdh.html">Zeppelin on CDH</a></li> <li><a href="/docs/0.10.1/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/0.10.1/setup/security/authentication_nginx.html">HTTP Basic Auth using NGINX</a></li> <li><a href="/docs/0.10.1/setup/security/shiro_authentication.html">Shiro Authentication</a></li> <li><a href="/docs/0.10.1/setup/security/notebook_authorization.html">Notebook Authorization</a></li> <li><a href="/docs/0.10.1/setup/security/datasource_authorization.html">Data Source Authorization</a></li> <li><a href="/docs/0.10.1/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/0.10.1/setup/storage/storage.html#notebook-storage-in-local-git-repository">Git Storage</a></li> <li><a href="/docs/0.10.1/setup/storage/storage.html#notebook-storage-in-s3">S3 Storage</a></li> <li><a href="/docs/0.10.1/setup/storage/storage.html#notebook-storage-in-azure">Azure Storage</a></li> <li><a href="/docs/0.10.1/setup/storage/storage.html#notebook-storage-in-oss">OSS Storage</a></li> <li><a href="/docs/0.10.1/setup/storage/storage.html#notebook-storage-in-zeppelinhub">ZeppelinHub Storage</a></li> <li><a href="/docs/0.10.1/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/0.10.1/setup/operation/configuration.html">Configuration</a></li> <li><a href="/docs/0.10.1/setup/operation/proxy_setting.html">Proxy Setting</a></li> <li><a href="/docs/0.10.1/setup/operation/upgrading.html">Upgrading</a></li> <li><a href="/docs/0.10.1/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/0.10.1/usage/interpreter/overview.html">Overview</a></li> <li role="separator" class="divider"></li> <li><a href="/docs/0.10.1/interpreter/spark.html">Spark</a></li> <li><a href="/docs/0.10.1/interpreter/flink.html">Flink</a></li> <li><a href="/docs/0.10.1/interpreter/jdbc.html">JDBC</a></li> <li><a href="/docs/0.10.1/interpreter/python.html">Python</a></li> <li><a href="/docs/0.10.1/interpreter/r.html">R</a></li> <li role="separator" class="divider"></li> <li><a href="/docs/0.10.1/interpreter/alluxio.html">Alluxio</a></li> <li><a href="/docs/0.10.1/interpreter/beam.html">Beam</a></li> <li><a href="/docs/0.10.1/interpreter/bigquery.html">BigQuery</a></li> <li><a href="/docs/0.10.1/interpreter/cassandra.html">Cassandra</a></li> <li><a href="/docs/0.10.1/interpreter/elasticsearch.html">Elasticsearch</a></li> <li><a href="/docs/0.10.1/interpreter/geode.html">Geode</a></li> <li><a href="/docs/0.10.1/interpreter/groovy.html">Groovy</a></li> <li><a href="/docs/0.10.1/interpreter/hazelcastjet.html">Hazelcast Jet</a></li> <li><a href="/docs/0.10.1/interpreter/hbase.html">HBase</a></li> <li><a href="/docs/0.10.1/interpreter/hdfs.html">HDFS</a></li> <li><a href="/docs/0.10.1/interpreter/hive.html">Hive</a></li> <li><a href="/docs/0.10.1/interpreter/ignite.html">Ignite</a></li> <li><a href="/docs/0.10.1/interpreter/influxdb.html">influxDB</a></li> <li><a href="/docs/0.10.1/interpreter/java.html">Java</a></li> <li><a href="/docs/0.10.1/interpreter/jupyter.html">Jupyter</a></li> <li><a href="/docs/0.10.1/interpreter/kotlin.html">Kotlin</a></li> <li><a href="/docs/0.10.1/interpreter/ksql.html">KSQL</a></li> <li><a href="/docs/0.10.1/interpreter/kylin.html">Kylin</a></li> <li><a href="/docs/0.10.1/interpreter/lens.html">Lens</a></li> <li><a href="/docs/0.10.1/interpreter/livy.html">Livy</a></li> <li><a href="/docs/0.10.1/interpreter/mahout.html">Mahout</a></li> <li><a href="/docs/0.10.1/interpreter/markdown.html">Markdown</a></li> <li><a href="/docs/0.10.1/interpreter/mongodb.html">MongoDB</a></li> <li><a href="/docs/0.10.1/interpreter/neo4j.html">Neo4j</a></li> <li><a href="/docs/0.10.1/interpreter/pig.html">Pig</a></li> <li><a href="/docs/0.10.1/interpreter/postgresql.html">Postgresql, HAWQ</a></li> <li><a href="/docs/0.10.1/interpreter/sap.html">SAP</a></li> <li><a href="/docs/0.10.1/interpreter/scalding.html">Scalding</a></li> <li><a href="/docs/0.10.1/interpreter/scio.html">Scio</a></li> <li><a href="/docs/0.10.1/interpreter/shell.html">Shell</a></li> <li><a href="/docs/0.10.1/interpreter/sparql.html">Sparql</a></li> <li><a href="/docs/0.10.1/interpreter/submarine.html">Submarine</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/0.10.1/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/0.10.1/development/helium/overview.html">Overview</a></li> <li><a href="/docs/0.10.1/development/helium/writing_application.html">Writing Helium Application</a></li> <li><a href="/docs/0.10.1/development/helium/writing_spell.html">Writing Helium Spell</a></li> <li><a href="/docs/0.10.1/development/helium/writing_visualization_basic.html">Writing Helium Visualization: Basics</a></li> <li><a href="/docs/0.10.1/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/0.10.1/setup/basics/how_to_build.html">How to Build Zeppelin</a></li> <li><a href="/docs/0.10.1/development/contribution/useful_developer_tools.html">Useful Developer Tools</a></li> <li><a href="/docs/0.10.1/development/contribution/how_to_contribute_code.html">How to Contribute (code)</a></li> <li><a href="/docs/0.10.1/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" rel="noopener noreferrer" href="https://zeppelin.apache.org/community.html">Mailing List</a></li> <li><a target="_blank" rel="noopener noreferrer" href="https://cwiki.apache.org/confluence/display/ZEPPELIN/Zeppelin+Home">Apache Zeppelin Wiki</a></li> <li><a target="_blank" rel="noopener noreferrer" href="http://stackoverflow.com/questions/tagged/apache-zeppelin">Stackoverflow Questions about Zeppelin</a></li> </ul> </li> <li> <a href="/docs/0.10.1/search.html" class="nav-search-link"> <span class="fa fa-search nav-search-icon"></span> </a> </li> </ul> </nav> </div> </div> <div class="content">  <div class="row"> <div class="col-md-12">  <h1>Lens Interpreter for Apache Zeppelin</h1> <div id="toc"></div> <h2>Overview</h2> <p><a href="https://lens.apache.org/">Apache Lens</a> provides an Unified Analytics interface. Lens aims to cut the Data Analytics silos by providing a single view of data across multiple tiered data stores and optimal execution environment for the analytical query. It seamlessly integrates Hadoop with traditional data warehouses to appear like one.</p> <p><img src="/docs/0.10.1/assets/themes/zeppelin/img/docs-img/lens-logo.png" alt="Apache Lens"></p> <h2>Installing and Running Lens</h2> <p>In order to use Lens interpreters, you may install Apache Lens in some simple steps:</p> <ol> <li>Download Lens for latest version from <a href="http://www.apache.org/dyn/closer.lua/lens/2.3-beta">the ASF</a>. Or the older release can be found <a href="http://archive.apache.org/dist/lens/">in the Archives</a>.</li> <li>Before running Lens, you have to set HIVE<em>HOME and HADOOP</em>HOME. If you want to get more information about this, please refer to <a href="http://lens.apache.org/lenshome/install-and-run.html#Installation">here</a>. Lens also provides Pseudo Distributed mode. <a href="http://lens.apache.org/lenshome/pseudo-distributed-setup.html">Lens pseudo-distributed setup</a> is done by using <a href="https://www.docker.com/">docker</a>. Hive server and hadoop daemons are run as separate processes in lens pseudo-distributed setup.</li> <li>Now, you can start lens server (or stop).</li> </ol> <div class="highlight"><pre><code class="bash language-bash" data-lang="bash">./bin/lens-ctl start <span class="c"># (or stop)</span> </code></pre></div> <h2>Configuring Lens Interpreter</h2> <p>At the "Interpreters" menu, you can edit Lens interpreter or create new one. Zeppelin provides these properties for Lens.</p> <table class="table-configuration"> <tr> <th>Property Name</th> <th>value</th> <th>Description</th> </tr> <tr> <td>lens.client.dbname</td> <td>default</td> <td>The database schema name</td> </tr> <tr> <td>lens.query.enable.persistent.resultset</td> <td>false</td> <td>Whether to enable persistent resultset for queries. When enabled, server will fetch results from driver, custom format them if any and store in a configured location. The file name of query output is queryhandle-id, with configured extensions</td> </tr> <tr> <td>lens.server.base.url</td> <td>http://hostname:port/lensapi</td> <td>The base url for the lens server. you have to edit "hostname" and "port" that you may use(ex. http://0.0.0.0:9999/lensapi)</td> </tr> <tr> <td>lens.session.cluster.user </td> <td>default</td> <td>Hadoop cluster username</td> </tr> <tr> <td>zeppelin.lens.maxResult</td> <td>1000</td> <td>Max number of rows to display</td> </tr> <tr> <td>zeppelin.lens.maxThreads</td> <td>10</td> <td>If concurrency is true then how many threads?</td> </tr> <tr> <td>zeppelin.lens.run.concurrent</td> <td>true</td> <td>Run concurrent Lens Sessions</td> </tr> <tr> <td>xxx</td> <td>yyy</td> <td>anything else from [Configuring lens server](https://lens.apache.org/admin/config-server.html)</td> </tr> </table> <p><img src="/docs/0.10.1/assets/themes/zeppelin/img/docs-img/lens-interpreter-setting.png" alt="Apache Lens Interpreter Setting"></p> <h3>Interpreter Binding for Zeppelin Notebook</h3> <p>After configuring Lens interpreter, create your own notebook, then you can bind interpreters like below image.</p> <p><img src="/docs/0.10.1/assets/themes/zeppelin/img/docs-img/lens-interpreter-binding.png" alt="Zeppelin Notebook Interpreter Binding"></p> <p>For more interpreter binding information see <a href="../usage/interpreter/overview.html#interpreter-binding-mode">here</a>.</p> <h3>How to use</h3> <p>You can analyze your data by using <a href="http://lens.apache.org/user/olap-cube.html">OLAP Cube</a> <a href="http://lens.apache.org/user/cli.html">QL</a> which is a high level SQL like language to query and describe data sets organized in data cubes. You may experience OLAP Cube like this <a href="https://cwiki.apache.org/confluence/display/LENS/2015/07/13/20+Minute+video+demo+of+Apache+Lens+through+examples">Video tutorial</a>. As you can see in this video, they are using Lens Client Shell(<code>./bin/lens-cli.sh</code>). All of these functions also can be used on Zeppelin by using Lens interpreter.</p> <p><li> Create and Use (Switch) Databases.</p> <div class="highlight"><pre><code class="sql language-sql" data-lang="sql"><span class="k">create</span> <span class="k">database</span> <span class="n">newDb</span> </code></pre></div><div class="highlight"><pre><code class="text language-text" data-lang="text">use newDb </code></pre></div> <p><li> Create Storage.</p> <div class="highlight"><pre><code class="text language-text" data-lang="text">create storage your/path/to/lens/client/examples/resources/db-storage.xml </code></pre></div> <p><li> Create Dimensions, Show fields and join-chains of them.</p> <div class="highlight"><pre><code class="text language-text" data-lang="text">create dimension your/path/to/lens/client/examples/resources/customer.xml </code></pre></div><div class="highlight"><pre><code class="text language-text" data-lang="text">dimension show fields customer </code></pre></div><div class="highlight"><pre><code class="text language-text" data-lang="text">dimension show joinchains customer </code></pre></div> <p><li> Create Caches, Show fields and join-chains of them.</p> <div class="highlight"><pre><code class="text language-text" data-lang="text">create cube your/path/to/lens/client/examples/resources/sales-cube.xml </code></pre></div><div class="highlight"><pre><code class="text language-text" data-lang="text">cube show fields sales </code></pre></div><div class="highlight"><pre><code class="text language-text" data-lang="text">cube show joinchains sales </code></pre></div> <p><li> Create Dimtables and Fact.</p> <div class="highlight"><pre><code class="text language-text" data-lang="text">create dimtable your/path/to/lens/client/examples/resources/customer_table.xml </code></pre></div><div class="highlight"><pre><code class="text language-text" data-lang="text">create fact your/path/to/lens/client/examples/resources/sales-raw-fact.xml </code></pre></div> <p><li> Add partitions to Dimtable and Fact.</p> <div class="highlight"><pre><code class="text language-text" data-lang="text">dimtable add single-partition --dimtable_name customer_table --storage_name local --path your/path/to/lens/client/examples/resources/customer-local-part.xml </code></pre></div><div class="highlight"><pre><code class="text language-text" data-lang="text">fact add partitions --fact_name sales_raw_fact --storage_name local --path your/path/to/lens/client/examples/resources/sales-raw-local-parts.xml </code></pre></div> <p><li> Now, you can run queries on cubes.</p> <div class="highlight"><pre><code class="text language-text" data-lang="text">query execute cube select customer_city_name, product_details.description, product_details.category, product_details.color, store_sales from sales where time_range_in(delivery_time, '2015-04-11-00', '2015-04-13-00') </code></pre></div> <p><img src="/docs/0.10.1/assets/themes/zeppelin/img/docs-img/lens-result.png" alt="Lens Query Result"></p> <p>These are just examples that provided in advance by Lens. If you want to explore whole tutorials of Lens, see the <a href="https://cwiki.apache.org/confluence/display/LENS/2015/07/13/20+Minute+video+demo+of+Apache+Lens+through+examples">tutorial video</a>.</p> <h2>Lens UI Service</h2> <p>Lens also provides web UI service. Once the server starts up, you can open the service on http://serverhost:19999/index.html and browse. You may also check the structure that you made and use query easily here.</p> <p><img src="/docs/0.10.1/assets/themes/zeppelin/img/docs-img/lens-ui-service.png" alt="Lens UI Service"></p> </div> </div> <hr> <footer>  </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 Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-45176241-5', 'zeppelin.apache.org'); ga('require', 'linkid', 'linkid.js'); ga('send', 'pageview'); </script> </body> </html>

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Apache Zeppelin 0.10.1 Documentation: Lens Interpreter for Apache Zeppelin