Apache Mesos

What do you like best?

I love the abstraction Mesos provides in terms of resource management for cluster. Is seamlessly integrated with Apache Spark. That allow launching Spark tasks in a Mesos cluster by just specifying the Mesos cluster URL. From local to clustered computation in just one parameter.

Its C++ code base is quite neat, often using functional programming patterns.

What do you dislike?

If you have a distributed application you want to deploy on Mesos, you need to use a framework to handle resource offers for it. That framework is ad-hoc for that application and either someone else wrote it or you need to write it by yourself. However, thanks to Marathon, which acts as a generic framework for containerized applications, you can deploy whichever application you might wrap in a container such as Docker.

What problems are you solving with the product? What benefits have you realized?

Multi-tenant, cluster management. Transparent application deployment. Resource manger for Apache Spark.