Hive Execute MapReduce jobs locally

Question

I don't have a cluster and I don't want to set up one. I have written a MapReduce code and want to see if it works. How can I configure Hive to run the MapReduce jobs locally without a cluster?

Answer 1

You can set Hive to run MapReduce locally as follows:

hive> SET mapreduce.framework.name=local;

But not that by default only one reducer is assigned for MapReduce jobs and so that execution will be slow for larger datasets.