spark-shell error : Service 'sparkDriver' failed after 16 retries!

# To solve the problems :

Step 1. Go to your installed spark directories.

Step 2. Go into 'bin' directory and then open the filed 'load-spark-env.sh'

Step 3. After adding  'export SPARK_LOCAL_IP='127.0.0.1' to 'load-spark-env.sh'.

It worked for me. I'm using Mac OS X EI Captain.(10.11.6) 

출처 : http://jacob119.blogspot.kr/2016/08/spark-shell-error-service-sparkdriver.html