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

This happens when you switched between different networks(VPN - PROD, CI based on your company networks to access different environments).

I had the same issue, whenever I switch the VPN.

update sudo /etc/hosts with the hostname value on your Mac.