How to increase the performance of Hive query in ec2 machine with one name node and two datanode?

How to increase the performance of Hive query in ec2 machine with one name
node and two datanode?

References

Reference NO 1

http://stackoverflow.com/questions/15202031/how-to-increase-the-performance-of-hive-query-in-ec2-machine-with-one-name-node

Reference NO 2

http://stackoverflow.com/questions/17694434/hive-how-to-handle-unprocessed-records-with-hive-query

Reference NO 3

http://citusdata.com/docs/sql-on-hadoop

Reference NO 4

http://www.quora.com/Hive-computing/What-should-be-the-number-of-reducers-in-hive-configuration-to-improve-the-performance-of-hive

Reference NO 5

http://en.wikipedia.org/wiki/Apache_Hadoop

Reference NO 6

http://aws.amazon.com/elasticmapreduce/faqs/

Reference NO 7

http://hortonworks.com/wp-content/uploads/2012/03/Hortonworks_Tutorial_Hive_5.22.pdf

Reference NO 8

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