Gartner says cloud, in-memory databases are headed into Hype Cycle “trough of disillusionment.” Productivity expected within two to five years.

Cloud computing and in-memory databases, two darlings of the big data movement, have passed the “peak of inflated expectations” and are headed into the “trough of disillusionment,” according to Gartner’s Hype Cycle for Big Data, 2013.