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Sample-hbase-mail-digester » History » Version 5

Henning Blohm, 02.08.2014 14:28

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h1. Sample that combines HBase with full-stack Spring and Hibernate usage
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This sample consists of an application that loads large Mbox archive files and extracts email addresses using a map reduce job. Extracted email addresses are then written to a relational database and offered for editing.
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Being a full stack sample it shows how to design a multi-module application with a service tier that can be seamlessly used from a Web app as well as from an application-level map-reduce job.
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*Note*: This sample still uses v2.2 of z2 - so making sure the correct versions are specified below is crucial.
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*Note*: Due to HBase, you will need to run this on Linux or Mac OS.
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h2. Install
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Here is the quick guide to getting things up and running. This follows closely [[How_to_run_a_sample]] and [[Install_prepacked_CDH4]].
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h3. Checkout
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Create some installation folder and check out the z2 core and the HBase distribution, as well as the sample application. 
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<pre><code class="bash">
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git clone -b v2.2 http://git.z2-environment.net/z2-base.core
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git clone -b v2.2 http://git.z2-environment.net/z2-samples.cdh4-base
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git clone -b master http://git.z2-environment.net/z2-samples.hbase-mail-digester
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</code></pre>
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(Note: Do not use your shared git folder, if you have any, as the neighborhood of these projects may be inspected by z2 later on).
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h3. Prepare
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We need to apply some minimal configuration for HBase. At first, please follow [[Install_prepacked_CDH4]] on how to configure your HBase checkout. There are a few steps that need to be taken once only but still have to.
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Assuming HBase has started and all processes show as described, there is one last thing to get running before starting the actual application:
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{{include(How to run Java db)}}
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h3. Start
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Now that all databases are up we can start the application simply by running:
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<pre><code class="bash">
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# on Linux / Mac OS:
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cd z2-base.core/run/bin
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./gui.sh
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# on Windows:
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cd z2-base.core\run\bin
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gui.bat
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</code></pre>
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as always. At first startup this will download some significant amount of dependencies (Spring, Vaadin, etc.). So go and get yourself some coffee....
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When started, go to http://localhost:8080/digester-admin. You should see this:
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!start.png!
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!job.png!
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!counts.png!