Did you write your mappers and reducers in java using the hadoop api or does this translate into hiveql or some other higher-level language? Great job btw, this

Did you write your mappers and reducers in java using the hadoop api or does this translate into hiveql or some other higher-level language? Great job btw, this looks super helpful for the business types to get useful reports on their own rather than interrupt the workflow of someone with more formal training (huge issue typically).