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From Dillian Murphey <>
Subject Testing spark with AWS spot instances
Date Fri, 25 Mar 2016 05:15:27 GMT
I'm very new to apache spark. I'm just a user not a developer.

I'm running a cluster with many spot instances. Am I correct in
understanding that spark can handle an unlimited number of spot instance
failures and restarts?  Sometimes all the spot instances will dissapear
without warning, and then they come back.  Can I trust spark to pickup all
jobs where it left off?

I'm noticing some instability with my system. I'm suspecting it could be
disk or RAM issues.  When I add a lot of slaves I run low on RAM on my
master.  Maybe that's part of the problem. But jut want to confirm my

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