Ad Hoc Big Data on the Amazon AWS Cloud
Using DynamoDB, Hadoop, EMR, Hive, and Impala to Run Ad Hoc Data Analysis
Ad hoc big data is useful for situations where you aren't setting up a recurring or ongoing batch environment, but just want to
explore a particular question or direction once, or perhaps a few times. This can also be really useful to help in the initial
stages of trying to get an overall picture of the data.