question Re: How to access the YARN UI through knox default gateway port 8443? in Archives of Support Questions (Read Only)

How to access the YARN UI through knox default gateway port 8443?

pprasadt27 — Mon, 24 Jul 2017 19:30:08 GMT

Re: How to access the YARN UI through knox default gateway port 8443?

darvasip — Mon, 24 Jul 2017 19:43:06 GMT

You need to configure your Knox topology and add YARNUI service snippet

E.g

<service>
    <role>YARNUI</role>
    <url>http://sandbox.hortonworks.com:8088</url>
</service>

This is a official documentation. The changes should be applied automatically.

With all the other settings unchanged the service has to be accessible from a URL scheme like:

https://{gateway-host}:{gateway-port}/{gateway-path}/{cluster-name}/yarn

E.g.

https://10.0.0.1:8443/gateway/hdc/yarn/

Hope this helps!

Re: How to access the YARN UI through knox default gateway port 8443?

WhiteHa — Mon, 24 Jul 2017 22:08:54 GMT

@Prasad T Please use the xml code below and create a topology file in /etc/knox/conf/topologies directory and replace the YARN_HOSTNAME and YARN_PORT with relevant values. If your newly created topology is named ui.xml, you can access the YARN UI using Web URL: https://KNOX_HOST:KNOX_PORT/gateway/ui/yarn/

 <topology>
    <gateway>
        <provider>
            <role>authentication</role>
            <name>Anonymous</name>
            <enabled>true</enabled>
        </provider>
        <provider>
            <role>identity-assertion</role>
            <name>Default</name>
            <enabled>false</enabled>
        </provider>
    </gateway>
   <service>
        <role>YARN</role>
        <url>http://<YARN_HOSTNAME>:<YARN_PORT></url>
    </service>
    <service>
        <role>YARNUI</role>
        <url>http://<YARN_HOSTNAME>:<YARN_PORT></url>
    </service>
</topology>

Re: How to access the YARN UI through knox default gateway port 8443?

WhiteHa — Wed, 02 Aug 2017 16:07:13 GMT

We need another service entry with role "YARN" as well with same url. Also in URL scheme, "hdc" is not cluster-name but topology name.

Re: How to access the YARN UI through knox default gateway port 8443?

ravi11 — Wed, 03 Oct 2018 09:47:05 GMT

when i do the above it is asking me username-password when i access the URL..