docs/topics/impala_ports.xml

<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="ports">

  <title>Ports Used by Impala</title>

  <prolog>
    <metadata>
      <data name="Category" value="Impala"/>
      <data name="Category" value="Ports"/>
      <data name="Category" value="Network"/>
      <data name="Category" value="Administrators"/>
      <data name="Category" value="Developers"/>
      <data name="Category" value="Data Analysts"/>
    </metadata>
  </prolog>

  <conbody id="conbody_ports">

    <p>Impala uses the TCP ports listed in the following table. Before deploying
      Impala, ensure these ports are open on each system. You can use the
      corresponding start-up flags to overwrite the default ports.</p>

    <table>
      <tgroup cols="4">
        <colspec colname="1" colwidth="20*"/>
        <colspec colname="2" colwidth="30*"/>
        <colspec colname="3" colwidth="10*"/>
        <colspec colname="5" colwidth="30*"/>
        <thead>
          <row>
            <entry> Scope / Role </entry>
            <entry> Startup Flag </entry>
            <entry>Default Port </entry>
            <entry> Comment </entry>
          </row>
        </thead>
        <tbody>
          <row>
            <entry>Impala Daemon </entry>
            <entry>--beeswax_port</entry>
            <entry>21000 </entry>
            <entry>Port on which Beeswax client requests are served by Impala
              Daemons.</entry>
          </row>
          <row>
            <entry>Impala Daemon </entry>
            <entry>--hs2_port</entry>
            <entry>21050 </entry>
            <entry>Port on which HiveServer2 client requests are served by
              Impala Daemons.</entry>
          </row>
          <row>
            <entry>Impala Daemon </entry>
            <entry>--be_port</entry>
            <entry>22000 </entry>
            <entry>Internal use only. Impala daemons use this port for Thrift
              based communication with each other. </entry>
          </row>
          <row>
            <entry>Impala Daemon </entry>
            <entry>--state_store_subscriber_port</entry>
            <entry>23000 </entry>
            <entry>Internal use only. Impala daemons listen on this port for
              updates from the StateStore daemon. </entry>
          </row>
          <row rev="2.1.0">
            <entry>Catalog Daemon </entry>
            <entry>--state_store_subscriber_port</entry>
            <entry>23020 </entry>
            <entry>Internal use only. The Catalog Server daemon listens on this
              port for updates from the StateStore daemon. </entry>
          </row>
          <row>
            <entry>Impala Daemon </entry>
            <entry>--webserver_port</entry>
            <entry>25000 </entry>
            <entry>Impala debug Web UI for administrators to monitor and
              troubleshoot. </entry>
          </row>
          <row>
            <entry>Impala StateStore Daemon </entry>
            <entry>--webserver_port</entry>
            <entry>25010 </entry>
            <entry>StateStore debug Web UI for administrators to monitor and
              troubleshoot. </entry>
          </row>
          <row rev="1.2">
            <entry>Impala Catalog Daemon </entry>
            <entry>--webserver_port</entry>
            <entry>25020 </entry>
            <entry>Catalog Server debug Web UI for administrators to monitor and
              troubleshoot. New in Impala 1.2 and higher. </entry>
          </row>
          <row>
            <entry>Impala StateStore Daemon </entry>
            <entry>--state_store_port</entry>
            <entry>24000 </entry>
            <entry>Internal use only. The StateStore daemon listens on this port
              for registration/unregistration requests. </entry>
          </row>
          <row rev="1.2">
            <entry>Impala Catalog Daemon </entry>
            <entry>--catalog_service_port</entry>
            <entry>26000 </entry>
            <entry>Internal use only. The Catalog Server uses this port to
              communicate with the Impala daemons. New in Impala 1.2 and higher.
            </entry>
          </row>
          <row>
            <entry>
              <p> Impala Daemon </p>
            </entry>
            <entry>--krpc_port</entry>
            <entry>27000 </entry>
            <entry>Internal use only. Impala daemons use this port for KRPC
              based communication with each other. </entry>
          </row>
          <row rev="1.3.0">
            <entry>Impala Daemon </entry>
            <entry>--hs2_http_port</entry>
            <entry>28000 </entry>
            <entry>Used to transmit commands and receive results by client
              applications over HTTP via the HiveServer2 protocol. </entry>
          </row>
        </tbody>
      </tgroup>
    </table>

  </conbody>

</concept>