Today I went to a Hadoop Meetup event where people shared their fair piece of wrestling with Hadoop. The discussion were mostly around search, scalability, fault tolerance, workflow and responsiveness. There were a ton of challenges that from outside you might think that they are not big of a deal but when you get to do them it takes a good man's efforts to solve. The main host was the Grooveshark music streaming company with over 60 employees in two offices one here in Gaiensville, FL and another in New York. The next meeting we would be talking about Hadoop workflow, Oozie by Yahoo, Azkaban by Linkedin, etc.