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Apache Mesos Cookbook

You're reading from   Apache Mesos Cookbook Efficiently handle and manage tasks in a distributed environment

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Product type Paperback
Published in Aug 2017
Publisher Packt
ISBN-13 9781785884627
Length 146 pages
Edition 1st Edition
Tools
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Authors (3):
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David Blomquist David Blomquist
Author Profile Icon David Blomquist
David Blomquist
Tomasz Janiszewski Tomasz Janiszewski
Author Profile Icon Tomasz Janiszewski
Tomasz Janiszewski
Marco Massenzio Marco Massenzio
Author Profile Icon Marco Massenzio
Marco Massenzio
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Toc

Table of Contents (9) Chapters Close

Preface 1. Getting Started with Apache Mesos 2. Implementing High Availability with Apache ZooKeeper FREE CHAPTER 3. Running and Maintaining Mesos 4. Understanding the Scheduler API 5. Managing Containers 6. Deploying PaaS with Marathon 7. Job Scheduling with Metronome 8. Continuous Integration with Jenkins

Registering frameworks


In this recipe, we will learn how frameworks register in Mesos to receive offers and state updates.

How to do it...

We will create the scheduler.go file and implement our framework inside of it.

Before we start, we need to define some globals and imports that we will need later:

import (
        "bufio"
        "bytes"
        "log"
        "net/http"
        "os"
        "strconv"
        "strings"
        "github.com/golang/protobuf/jsonpb"
)
// Url to Mesos master scheduler API
const schedulerApiUrl = "http://10.10.10.10:5050/api/v1/scheduler"
// Current framework configuration
var frameworkInfo FrameworkInfo
// Marshaler to serialize Protobuf Message to JSON
var marshaller = jsonpb.Marshaler{
        EnumsAsInts: false,
        Indent: " ",
        OrigName: true,
}

jsonpb.Marshaler is a part of the Golang Protobuf binding. It's responsible for converting structs into JSON. We will use it to serialize the messages we send to Mesos. It's important to use a proper Marshaler...

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