Review on GridGain by Greg Roberts

The gridgain's ability to scale up and down the number of nodes at any moment without any downtime and the ability to use it in cloud environments. The documentation is not that much user-friendly, which makes it difficult for a newbie to get started. It is a bit expensive for startups. But once it is in use, it is a great product. I have used it in a couple of projects and they have been a great success. It has helped me to scale the applications and has been a great help in the development of the applications.