Introduction
Before we jump into the recipes and try creating a Mesos cluster, it is very important that you know what Mesos is and why we use it to deploy microservices.
Let's answer the first question: What is Mesos?
Mesos is a cluster management framework that makes resource allocation easier in order to run distributed applications. If you break this sentence down, it will start making more sense. Mesos is called a cluster management framework because it groups multiple machines into one single virtual resource pool. Let's say you have 10 machines with 4 GB memory, 4 cores each, and 10 GB disk space. Now you would like to use these machines to do different things, such as the following:
- Run Spark jobs
- Run long running services
- Run Cron jobs
- Run Hadoop
- Run Cassandra
In this case, you would ideally have to go to a whiteboard and draw out an architecture diagram that identifies what is going to run on what machine. You will have machines dedicated for a single purpose. A machine dedicated...
