title: How to enable short-circuit read in HBase? (hbase-site.xml)
body: <p>So, I have HDFS configured to do short-circuit read and I checked the short-circuit read is enabled and performed very well, when I use HDFS read APIs. (I can see the logs that the feature is successfully enabled.)</p>
  <p>But I have no idea whether this short-circuit read is enabled or not when I run HBase upon HDFS.</p>
  <p>So this is the property that I put in <code>hdfs-site.xml</code>, and I found the document that in
  <code>hbase-site.xml</code>, I have to configure this setting too. Is this true, even though I already put this on <code>hdfs-site.xml</code> file?</p>
  <pre><code>&lt;property&gt;
      &lt;name&gt;dfs.client.read.shortcircuit&lt;/name&gt;
      &lt;value&gt;true&lt;/value&gt;
    &lt;/property&gt;
  &lt;property&gt;
      &lt;name&gt;dfs.domain.socket.path&lt;/name&gt;
      &lt;value&gt;/var/lib/hadoop-hdfs/dn_socket&lt;/value&gt;
  &lt;/property&gt;
  </code></pre>
  <p>That was my first question.</p>
  <p>And is there any measure to find out HBase is performing read using short-circuit read?</p>
  <p>Thank you in advance.</p>