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Nicholas Chammas 0c681dd6b2 [EC2] don't duplicate default values 
This PR makes two minor changes to the `spark-ec2` script:

1. The script's input parameter default values are duplicated into the help text. This is unnecessary. This PR replaces the duplicated info with the appropriate `optparse`  placeholder.
2. The default Spark version currently needs to be updated by hand during each release, which is known to be a faulty process. This PR places that default value in an easy-to-spot place.

Author: Nicholas Chammas <nicholas.chammas@gmail.com>

Closes #2290 from nchammas/spark-ec2-default-version and squashes the following commits:

0c6d3bb [Nicholas Chammas] don't duplicate default values
2014-09-06 14:39:29 -07:00
..
deploy.generic/root/spark-ec2 EC2 configurable workers 2014-05-03 16:52:19 -07:00
third_party Added script for launching Spark on EC2 from Mesos, to make it easier 2012-06-10 23:06:15 -07:00
README Remove remaining references to incubation 2014-03-02 01:00:16 -08:00
spark-ec2 SPARK-2241: quote command line args in ec2 script 2014-06-22 20:23:49 -07:00
spark_ec2.py [EC2] don't duplicate default values 2014-09-06 14:39:29 -07:00

README 

This folder contains a script, spark-ec2, for launching Spark clusters on
Amazon EC2. Usage instructions are available online at:

http://spark.apache.org/docs/latest/ec2-scripts.html