In Hadoop, objects passed to reducers are reused. This is extremely surprising and hard to track down if you're not expecting it. Furthermore, the original tracker for this "feature" doesn't offer any ...
I have around 200 million new objects coming in, and a 90 day retention policy, so that leaves me with 18 billion records to be stored in the form of key-value pairs. Key and value both will be a ...
Design application to send messages by marking circle on the map where you want to send message? [closed]
Design application to send messages by marking circle on the map where you want to send message ? This is a question that was asked of me by an interviewer. Given a map of the world, Select ...
I'm wondering if I wanted to implement a web service based on java that does web analytics, what sort of architecture should I use. The actualy processing of the Big Data would be done by Hadoop. ...