Surely you know Apache Mesos, a project of the APache Foundation that is an open development initiated at the University of California (Berkeley) for cluster management software providing isolation of resources and enabling exchange through distributed applications or frameworks to improve the use of the processing clusters in the large DataCenters.
Well, a startup called Mesosphere has created an operating system based mainly on Apache Mesos among other projects, to govern these datacenters. The operating system also takes its name from the entrepreneurial company Mesosphere, where a group of experts work hard to come up with an ideal product for these demanding work environments. Its benefits have led it to receive more than 36 million dollars for its financing and development.
Actually it is not correct to call it operating system as such, since they themselves call it DCOS, that is, Data Center Operating System, since it is not for generic use like other operating systems or distributions. The main difference is that it does not intend to cover a server, but to bring together all the servers in a data processing center, which can give noticeable advantages in the famous cloud.
Basically, Mesosphere allows an administrator run applications on hundreds or thousands of servers as if it were just a single server, facilitating the entire procedure and providing unique advantages. Its importance is so great that many experts emphasize that Mesosphere is one of the most important projects in recent times, allowing clusters to be managed in a matter of hours or minutes, being compatible with operating systems such as Red Hat Linux, Ubuntu, CentOS, CoreOS, etc.