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11 Jan 2018

Mesos Executor

Apache Mesos is an open-source project to manage computer clusters. In this article we present one of its components called Executor and more specifically the Custom Executor. We also tell you why you should consider writing your own executor by giving examples of features that you can benefit from by taking more control over how tasks are executed. Our executor implementation is available at

20 Mar 2017

Hitting the Wall

Running Mesosphere Marathon is like running… a marathon. When you are preparing for a long distance run, you’ll often hear about Hitting the wall. This effect is described mostly in running and cycling but affects all endurance sports. It happens when your body does not have enough glycogen to produce power and this results in a sudden “power loss” so you can’t run anymore. At Allegro we have experienced a similar thing with Mesosphere Marathon. This is our story on using Marathon in a growing microservice ecosystem, from tens of tasks and a couple applications, to thousands of tasks and over a hundred applications. If there is no mention of Marathon version, it is 1.3.10 and below; we need some time to test and deploy the latest 1.4 release. If you are interested in how our ecosystem is built, take a look at below MesosCon presentation.