parallel-tutorial

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cc @minrk @quasiben @ahmadia Is everyone here ok adding a note to the README that it's fine to deliver this tutorial?

mrocklin

notebook 3b, solution `collections-2.py` throws exception

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``` ValueError: max() arg is an empty sequence ```

vestuto

Notebook 03a, SparkContext() will not run without modifying `/etc/hosts` on OSX.

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Students in your tutorial may encounter this. The following code cell generates an error without updating `/etc/hosts` ``` sc = SparkContext('local[4]') ``` The error is as following: ``` Py4JJavaError: An...

vestuto

Given all the tutorials students are running, may be better to advise them to create a separate environment for this tutorial, rather than using `root`. For example, consider including the...

vestuto