It was frustrating. We were failing and the Vice President was watching us do it. We had all the books and tried to work through the steps, but our use of relational database systems like MySql and Oracle meant we were approaching Hadoop in a fundamentally incorrect way. Our RDBMS solution was slowing down the Big Data solution.
Within two days of finishing the course, we had rewritten major components of the database architecture. Over the next six months, we completely overhauled everything we had done before we worked with Jesse. The 14 billion rows of data that used to take 16 hours to run were running in 2 hours, and the upgrades saved our company millions of dollars. If you take into account the lost time, and the salaries of our team while we were failing we could have saved a lot more — we really should have worked with Jesse sooner.