question Missing Zeppelin View in Archives of Support Questions (Read Only)

Missing Zeppelin View

wael_horchani1 — Tue, 03 Jan 2017 17:44:06 GMT

Hi,

When trying to access zeppelin view from ambari, i got the following error:

hostname’s server DNS address could not be found.

I can access it through separate page via port 9995. But I would know why it's impossible from ambari.

Please find enclosed the screen shot.zeppelin-view-1.jpg zeppelin-view-2.jpg

Ragards,

Re: Missing Zeppelin View

jsensharma — Tue, 03 Jan 2017 18:33:43 GMT

@Wael Horchani

- Do you have correct hostname mapping in your cluster?

- Can you check if all the hosts have the correct "hostname -f" output? Also the "/etc/hosts" file mapping? All the hosts in the cluster should be able to access eachother with the correct hostname.

- Do you see the correct hostname while making the following API call: http://AMBARI_HOSTNAME:8080/api/v1/clusters/CLUSTER_NAME/hosts/

- Also are you able to access the Zeppelin UI directly using the correct hostname ? If not then you will need to fix the hostname / DNS resolution. http://ZEPPELIN_HOST:9995/

Re: Missing Zeppelin View

wael_horchani1 — Tue, 03 Jan 2017 21:05:25 GMT

@Jay SenSharma

The current cluster is composed by one machine. Please note that the machine is a remote VDS (virtual dedicated server) that i can access only via ssh or web. my local machine is windows 10.

Following the output of hostname commands

root@vds001:~# hostname

vds001

root@vds001:~# hostname -f

vds001.databridge.tn

following the output of the API call : http://197.12.8.49:8080/api/v1/clusters/DataBridge/hosts/

{
  "href" : "http://197.12.8.49:8080/api/v1/clusters/DataBridge/hosts/",
  "items" : [
    {
      "href" : "http://197.12.8.49:8080/api/v1/clusters/DataBridge/hosts/vds001.databridge.tn",
      "Hosts" : {
        "cluster_name" : "DataBridge",
        "host_name" : "vds001.databridge.tn"
      }
    }
  ]

}

following the zeppellin UI call : http://197.12.8.49:9995 (i can't put the hostname instead of the ip@) it works

--> should i configure the host file in my local machine?

Regards,

Re: Missing Zeppelin View

jsensharma — Tue, 03 Jan 2017 22:31:41 GMT

@Wael Horchani

Zeppelin View is Iframe based view so please make sure that whatever host name you see there in the IFrame window, is accessible/resolvable from the host where you are opening the browser.

Try putting the mentioned hostname with the IP address in your local machine.

Re: Missing Zeppelin View

wael_horchani1 — Tue, 03 Jan 2017 22:53:42 GMT

@Jay SenSharma

Hi,

I added the IP@ of the VDS to my local hosts file and it's done 🙂

Thank you for your help.

Re: Missing Zeppelin View

wael_horchani1 — Tue, 03 Jan 2017 22:53:44 GMT

@Jay SenSharma

Hi,

I added the IP@ of the VDS to my local hosts file and it's done 🙂

Thank you for your help.