What happened when you tried to access port 8080 ?

Checking iptables settings is good to do.

At my employer, we use OpenStack clusters daily and don't encounter much
problem - including UI access.
Probably some settings should be tuned.

On Thu, Apr 28, 2016 at 5:03 AM, Dan Dong <dongda...@gmail.com> wrote:

> Hi, all,
>   I'm having problem to access the web UI of my Spark cluster. The cluster
> is composed of a few virtual machines running on a OpenStack platform. The
> VMs are launched from CentOS7.0 server image available from official site.
> The Spark itself runs well and master and worker process are all up and
> running, and run SparkPi example also get expected result. So, the question
> is, how to debug such a problem? Should it be a native problem of the
> CentOS image as it is not a desktop version, so some graphic packages might
> be missing in the VM?
> Or it is a iptables settings problem comes from OpenStack, as Openstack
> configures complex network inside it and it might block certain
> communication?
> Does anybody find similar problems? Any hints will be appreciated. Thanks!
>
> Cheers,
> Dong
>
>

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