Book Image

Apache Mesos Cookbook

By : David Blomquist, Tomasz Janiszewski
Book Image

Apache Mesos Cookbook

By: David Blomquist, Tomasz Janiszewski

Overview of this book

Apache Mesos is open source cluster sharing and management software. Deploying and managing scalable applications in large-scale clustered environments can be difficult, but Apache Mesos makes it easier with efficient resource isolation and sharing across application frameworks. The goal of this book is to guide you through the practical implementation of the Mesos core along with a number of Mesos supported frameworks. You will begin by installing Mesos and then learn how to configure clusters and maintain them. You will also see how to deploy a cluster in a production environment with high availability using Zookeeper. Next, you will get to grips with using Mesos, Marathon, and Docker to build and deploy a PaaS. You will see how to schedule jobs with Chronos. We’ll demonstrate how to integrate Mesos with big data frameworks such as Spark, Hadoop, and Storm. Practical solutions backed with clear examples will also show you how to deploy elastic big data jobs. You will find out how to deploy a scalable continuous integration and delivery system on Mesos with Jenkins. Finally, you will configure and deploy a highly scalable distributed search engine with ElasticSearch. Throughout the course of this book, you will get to know tips and tricks along with best practices to follow when working with Mesos.
Table of Contents (15 chapters)
Title Page
About the Authors
About the Reviewer
Customer Feedback

Defining roles and resources

In this recipe, we will define roles and assign them weights to prioritize some frameworks over others.

How to do it...

Roles are part of the resources definition. We define resources and roles for each agent. For example, we want to change the default port range to 51000-52000 and the offered disk space to 4096 GB. To do this, we need to explicitly override the default values. You need to edit /etc/mesos-slave/resources and put the desired resources:

echo 'disk(*):4096; ports(*):[51000-52000]'> /etc/mesos-slave/resources

In a similar way, we can define other resources such as CPUs, memory, or GPUs just by adding the corresponding entry. The preceding configuration defines the default roles - (*).

To assign the resource to a specific role, put the role name after the resource in brackets. For example, we want to run role development and test on one cluster. We want to distinguish ports offered to these roles. The development tasks will be run on ports 31000-32000...