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         <h1 class="page-header" style="margin-top: 0px">JMX Metric Monitoring</h1>
         <p>JMX metric for Apache Hadoop namenode url <a href="http://127.0.0.1:50070/jmx">http://127.0.0.1:50070/jmx</a> can be monitored using Apache Eagle (called Eagle in the following). Follow below steps to enable this feature in Eagle.</p>

 <ol>
   <li>Install Python script (To populate JMX metric values to Kafka<sup id="fnref:KAFKA"><a href="#fn:KAFKA" class="footnote">1</a></sup> topic periodically).</li>
   <li>Deploy “hadoopjmx” Storm<sup id="fnref:STORM"><a href="#fn:STORM" class="footnote">2</a></sup> topology.</li>
   <li>Create new site and policy in UI.</li>
   <li>Validate policy alert.</li>
 </ol>

 <p><br /></p>

 <h3 id="prerequisite"><strong>Prerequisite</strong></h3>
 <ul>
   <li>Complete the setup from <a href="/docs/deployment-env.html">Setup Environment</a></li>
 </ul>

 <p><br /></p>

 <h3 id="setup"><strong>Setup</strong></h3>
 <p>From Hortonworks sandbox just run below setup script to Install Pyton JMX script, Create Kafka topic, update Apache Hbase tables and deploy “hadoopjmx” Storm topology.</p>

 <div class="highlighter-rouge"><pre class="highlight"><code>$ /usr/hdp/current/eagle/examples/hadoop-metric-sandbox-starter.sh
 $ /usr/hdp/current/eagle/examples/hadoop-metric-policy-create.sh
 </code></pre>
 </div>

 <p><br /></p>

 <h3 id="application-setup-in-ui"><strong>Application Setup in UI</strong></h3>
 <ol>
   <li>Login to Eagle UI <a href="http://localhost:9099/eagle-service/">http://localhost:9099/eagle-service/</a> using username and password as “admin” and “secret”</li>
   <li>Click on “Admin” from top right and click “Management” button.</li>
   <li>On Admin management page add “New Site” name “hadoopJmxMetricDataSource”, by clicking on “New Site” link.
 <img src="/images/docs/new-jmx-site.png" alt="add superuser" /></li>
   <li>Save the changes.</li>
   <li>On eagle home page you should see new tab called “METRIC”, beside “DAM”.</li>
   <li>Click on “JmxMetricMonitor” under “METRIC”.</li>
 </ol>

 <p>You should see policy with name “safeModePolicy”.</p>

 <p><br /></p>

 <h3 id="demo"><strong>Demo</strong></h3>

 <ul>
   <li>
     <p>First make sure that Kafka topic “nn_jmx_metric_sandbox” is populated with JMX metric data periodically.(To make sure that python script is running)</p>

     <div class="highlighter-rouge"><pre class="highlight"><code>  $ /usr/hdp/2.2.4.2-2/kafka/bin/kafka-console-consumer.sh --zookeeper sandbox.hortonworks.com:2181 --topic nn_jmx_metric_sandbox
 </code></pre>
     </div>
   </li>
   <li>
     <p>Genrate Alert by producing alert triggering message into Kafka topic.</p>

     <div class="highlighter-rouge"><pre class="highlight"><code>  $ /usr/hdp/2.2.4.2-2/kafka/bin/kafka-console-producer.sh --broker-list sandbox.hortonworks.com:6667 --topic nn_jmx_metric_sandbox
   $ {"host": "localhost", "timestamp": 1457033916718, "metric": "hadoop.namenode.fsnamesystemstate.fsstate", "component": "namenode", "site": "sandbox", "value": 1.0}
 </code></pre>
     </div>
   </li>
 </ul>

 <hr />

 <h4 id="footnotes"><em>Footnotes</em></h4>

 <div class="footnotes">
   <ol>
     <li id="fn:KAFKA">
       <p><em>All mentions of “kafka” on this page represent Apache Kafka.</em>&nbsp;<a href="#fnref:KAFKA" class="reversefootnote">&#8617;</a></p>
     </li>
     <li id="fn:STORM">
       <p><em>All mentions of “storm” on this page represent Apache Storm.</em>&nbsp;<a href="#fnref:STORM" class="reversefootnote">&#8617;</a></p>
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	<h1 class="page-header" style="margin-top: 0px">JMX Metric Monitoring</h1>
	<p>JMX metric for Apache Hadoop namenode url <a href="http://127.0.0.1:50070/jmx">http://127.0.0.1:50070/jmx</a> can be monitored using Apache Eagle (called Eagle in the following). Follow below steps to enable this feature in Eagle.</p>

	<ol>
	<li>Install Python script (To populate JMX metric values to Kafka<sup id="fnref:KAFKA"><a href="#fn:KAFKA" class="footnote">1</a></sup> topic periodically).</li>
	<li>Deploy “hadoopjmx” Storm<sup id="fnref:STORM"><a href="#fn:STORM" class="footnote">2</a></sup> topology.</li>
	<li>Create new site and policy in UI.</li>
	<li>Validate policy alert.</li>
	</ol>

	<p><br /></p>

	<h3 id="prerequisite"><strong>Prerequisite</strong></h3>
	<ul>
	<li>Complete the setup from <a href="/docs/deployment-env.html">Setup Environment</a></li>
	</ul>

	<p><br /></p>

	<h3 id="setup"><strong>Setup</strong></h3>
	<p>From Hortonworks sandbox just run below setup script to Install Pyton JMX script, Create Kafka topic, update Apache Hbase tables and deploy “hadoopjmx” Storm topology.</p>

	<div class="highlighter-rouge"><pre class="highlight"><code>$ /usr/hdp/current/eagle/examples/hadoop-metric-sandbox-starter.sh
	$ /usr/hdp/current/eagle/examples/hadoop-metric-policy-create.sh
	</code></pre>
	</div>

	<p><br /></p>

	<h3 id="application-setup-in-ui"><strong>Application Setup in UI</strong></h3>
	<ol>
	<li>Login to Eagle UI <a href="http://localhost:9099/eagle-service/">http://localhost:9099/eagle-service/</a> using username and password as “admin” and “secret”</li>
	<li>Click on “Admin” from top right and click “Management” button.</li>
	<li>On Admin management page add “New Site” name “hadoopJmxMetricDataSource”, by clicking on “New Site” link.
	<img src="/images/docs/new-jmx-site.png" alt="add superuser" /></li>
	<li>Save the changes.</li>
	<li>On eagle home page you should see new tab called “METRIC”, beside “DAM”.</li>
	<li>Click on “JmxMetricMonitor” under “METRIC”.</li>
	</ol>

	<p>You should see policy with name “safeModePolicy”.</p>

	<p><br /></p>

	<h3 id="demo"><strong>Demo</strong></h3>

	<ul>
	<li>
	<p>First make sure that Kafka topic “nn_jmx_metric_sandbox” is populated with JMX metric data periodically.(To make sure that python script is running)</p>

	<div class="highlighter-rouge"><pre class="highlight"><code> $ /usr/hdp/2.2.4.2-2/kafka/bin/kafka-console-consumer.sh --zookeeper sandbox.hortonworks.com:2181 --topic nn_jmx_metric_sandbox
	</code></pre>
	</div>
	</li>
	<li>
	<p>Genrate Alert by producing alert triggering message into Kafka topic.</p>

	<div class="highlighter-rouge"><pre class="highlight"><code> $ /usr/hdp/2.2.4.2-2/kafka/bin/kafka-console-producer.sh --broker-list sandbox.hortonworks.com:6667 --topic nn_jmx_metric_sandbox
	$ {"host": "localhost", "timestamp": 1457033916718, "metric": "hadoop.namenode.fsnamesystemstate.fsstate", "component": "namenode", "site": "sandbox", "value": 1.0}
	</code></pre>
	</div>
	</li>
	</ul>

	<hr />

	<h4 id="footnotes"><em>Footnotes</em></h4>

	<div class="footnotes">
	<ol>
	<li id="fn:KAFKA">
	<p><em>All mentions of “kafka” on this page represent Apache Kafka.</em> <a href="#fnref:KAFKA" class="reversefootnote">↩</a></p>
	</li>
	<li id="fn:STORM">
	<p><em>All mentions of “storm” on this page represent Apache Storm.</em> <a href="#fnref:STORM" class="reversefootnote">↩</a></p>
	</li>
	</ol>
	</div>

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