Amazon Elastic Map Reduce - Keep Server alive?

Question

I am testing jobs in EMR and each and every test takes a lot of time to start up. Is there a way to keep the server/master node alive in Amazon EMR? I know this can be done with the API. But, I wanted to know if this can be done in the aws console?

Answer 1

to keep the machine alive start an interactive pig session. Then the machine won't shut down. You can then execute your map/reduce logic from the command line using:

cat infile.txt | yourMapper | sort | yourReducer > outfile.txt