We are in the age of big data. Data has not only become the lifeblood of any organization, but is also growing exponentially. Data generated today is several magnitudes larger than what was generated just a few years ago. The challenge is how to get business value out of this data. This is the problem that big data–related technologies aim to solve. Therefore, big data has become one of the hottest technology trends over the last few years. Some of the most active open source projects are related to big data, and the number of these projects is growing rapidly. The number of startups focused on big data has exploded in recent years. Large established companies are making significant investments in big data technologies.