Right now, all major cloud service providers, such as Amazon, Microsoft, and Google, offer matured Hadoop and Hive as services in the cloud. Using the cloud version of Hive is very convenient. It requires almost no installation and setup. Amazon EMR (http://aws.amazon.com/elasticmapreduce/) is the earliest Hadoop service in the cloud. However, it is not a pure open source version since it is customized to run only on Amazon Web Services (AWS). Hadoop enterprise service and distribution providers, such as Cloudera and Hortonworks, also provide tools to easily deploy their own distributions on different public or private clouds. Cloudera Director (http://www.cloudera.com/content/cloudera/en/products-and-services/director.html) and Cloudbreak (https://hortonworks.com/open-source/cloudbreak/), open up Hadoop deployments in the cloud through a simple, self-service interface, and are fully supported on AWS, Windows Azure, Google Cloud Platform, and OpenStack. Although Hadoop was first built on Linux, Hortonworks and Microsoft have already partnered to bring Hadoop to the Windows-based platform and cloud successfully. The consensus among all the Hadoop cloud service providers here is to allow enterprises to provision highly available, flexible, highly secure, easily manageable, and governable Hadoop clusters with less effort and little cost.