CIOs are of two minds on Hadoop. They're not convinced that it can help them tackle their data but at the same time they're hiring Hadoop talent in droves. What gives?The reality is that while enterprises continue to stumble in the Big Data dark, they know that Hadoop—a framework for storing and running local calculations on distributed pools of data—will almost certainly be a core part of the answer, and they're investing heavily to ensure they don't get left behind.