Mac spark-shell Error initializing SparkContext

Question

I tried to start spark 1.6.0 (spark-1.6.0-bin-hadoop2.4) on Mac OS Yosemite 10.10.5 using

\"./bin/spark-shell\". 

It has the error below.

Answer 1

Sometimes firewall prevents creating and binding a socket. make sure that your firewall is not enable and also you have to check the ip of your machine in /etc/hosts and make sure it's OK then try again:

sudo ufw disable