Introduction to Netflix Fenzo

Netflix recently open sourced their scheduler library written in Java for Apache Mesos frameworks that supports scheduling optimizations and cluster autoscaling. At the time of writing the book, Fenzo is open sourced and is available in the official Netflix OSS suite repository, which can be found at the following URL: https://github.com/Netflix/Fenzo

There are basically two motivations for developing a framework such as Fenzo. Unlike other schedulers and frameworks discussed earlier, the reasons for building Fenzo are scheduling optimizations and autoscaling the cluster based on the usage.

When there is a huge variation in the amount of data that your cluster handles from time to time, provisioning the cluster for peak usage seems wasteful as most of the time, the resources will be idle. This is the main reason behind autoscaling the application depending on the load—that is, providing more machines to increase the cluster resources when there is peak usage...