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Should the Cloud Virtual Machines with Hadoop cluster be stopped after use or deleted and created

 
Ranch Hand
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I have created a Hadoop cluster with 3 nodes. When the cluster is not in use (no hadoop or spark jobs running) , there are 3 ways. Keep the Virtual machines running all the time which will be and expensive option or shut down the Virtual Machines when not being used or to delete the virtual machines and create new machines and setup the cluster each time. The first option is the most expensive while the last one is cheapest one but difficult one. What is the recommended way?
thanks
 
Greenhorn
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Thanks for posting a question for something I am currently taking a class on. Ha ha.  I think this person explains things better than I can.  See below link.  

https://read.acloud.guru/there-are-four-reasons-to-explain-how-using-aws-can-change-the-economic-model-of-the-it-services-850dcc8ea1aa

Also, here is an article from Amazon that seems to answer almost exactly what you are asking.

https://aws.amazon.com/emr/features/hadoop/
 
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