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From derrickburns <>
Subject spark challenge: zip with next???
Date Thu, 29 Jan 2015 19:49:52 GMT
Here is a spark challenge for you!

I have a data set where each entry has a date.  I would like to identify
gaps in the dates greater larger a given length.  For example, if the data
were log entries, then the gaps would tell me when I was missing log data
for long periods of time. What is the most efficient way to achieve this in

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