In your case, you will be able to see the webui (unless restricted with iptables) but you won't be able to submit jobs to that machine from a remote machine since the spark master is spark://127.0.0.1:7077
Thanks Best Regards On Tue, Mar 29, 2016 at 8:12 PM, David O'Gwynn <dogw...@acm.org> wrote: > /etc/hosts > > 127.0.0.1 localhost > > conf/slaves > 127.0.0.1 > > > On Mon, Mar 28, 2016 at 5:36 PM, Mich Talebzadeh < > mich.talebza...@gmail.com> wrote: > >> in your /etc/hosts what do you have for localhost >> >> 127.0.0.1 localhost.localdomain localhost >> >> conf/slave should have one entry in your case >> >> cat slaves >> # A Spark Worker will be started on each of the machines listed below. >> localhost >> ....... >> >> Dr Mich Talebzadeh >> >> >> >> LinkedIn * >> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw >> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* >> >> >> >> http://talebzadehmich.wordpress.com >> >> >> >> On 28 March 2016 at 15:32, David O'Gwynn <dogw...@acm.org> wrote: >> >>> Greetings to all, >>> >>> I've search around the mailing list, but it would seem that (nearly?) >>> everyone has the opposite problem as mine. I made a stab at looking in the >>> source for an answer, but I figured I might as well see if anyone else has >>> run into the same problem as I. >>> >>> I'm trying to limit my Master/Worker UI to run only on localhost. As it >>> stands, I have the following two environment variables set in my >>> spark-env.sh: >>> >>> SPARK_LOCAL_IP=127.0.0.1 >>> SPARK_MASTER_IP=127.0.0.1 >>> >>> and my slaves file contains one line: 127.0.0.1 >>> >>> The problem is that when I run "start-all.sh", I can nmap my box's >>> public interface and get the following: >>> >>> PORT STATE SERVICE >>> 22/tcp open ssh >>> 8080/tcp open http-proxy >>> 8081/tcp open blackice-icecap >>> >>> Furthermore, I can go to my box's public IP at port 8080 in my browser >>> and get the master node's UI. The UI even reports that the URL/REST URLs to >>> be 127.0.0.1: >>> >>> Spark Master at spark://127.0.0.1:7077 >>> URL: spark://127.0.0.1:7077 >>> REST URL: spark://127.0.0.1:6066 (cluster mode) >>> >>> I'd rather not have spark available in any way to the outside world >>> without an explicit SSH tunnel. >>> >>> There are variables to do with setting the Web UI port, but I'm not >>> concerned with the port, only the network interface to which the Web UI >>> binds. >>> >>> Any help would be greatly appreciated. >>> >>> >> >