Are you trying to access the UI from another machine? If so, first confirm that you don't have a network issue by opening the UI from the master node itself.

For example:

yum -y install lynx
lynx ip_address:8080

If this succeeds, then you likely have something blocking you from accessing the web page from another machine.


On Tue, Apr 1, 2014 at 6:30 PM, yxzhao <> wrote:
> As the above shows:
> "
> Monitoring and Logging
> Spark’s standalone mode offers a web-based user interface to monitor the
> cluster. The master and each worker has its own web UI that shows cluster
> and job statistics. By default you can access the web UI for the master at
> port 8080. The port can be changed either in the configuration file or via
> command-line options.
> "
> But I cannot open the web ui. The master ip is so I input:
> :8080 in my web browser. Bui the webpage is not
> available.
> Thanks.
> --
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