Explore our latest insights on the most interesting technologies.

What are keepalives?

• Valery Brasseur
• 6 Min To Read
• 29 Jan, 2018
• • Web and mobile technology

TL;DR

The default HTTP connection is usually closed after each request has been completed, meaning that the server closes the TCP connection after delivering the response. In order to keep the connection open for multiple requests, the keep-alive connection header can be used. All modern browsers use persistent connections as long as the server is willing to cooperate. You may also use HTTP/1.1, where Keep-Alive is implemented differently and the connections are kept open by default unless the response contains a “Connection: close” header.

Buzzwords I followed at JavaOne 2017

• Raphaël Semeteys
• 7 Min To Read
• 22 Jan, 2018
• • Professional conferences and events

Colleagues of mine already wrote on JavaOne in this very Blog. They covered large and very interesting subjects regarding… Java! But also microservices and all. Here are their posts:

On the (in)security of Internet routing

• Antoine Fressancourt
• 10 Min To Read
• 17 Jan, 2018
• • Cybersecurity

How is routing done in the Internet today?

Today, we live a connected life, and we often take the Internet for granted. But if you think twice about it, Internet is a kind of little miracle. Indeed, for the Internet to work properly, thousands of networks need to cooperate. Those networks are built and administrated by different companies, universities or individuals. Yet, their loose cooperation is needed in order for you to be able to see the cat GIF image that someone else has posted on a website.

JavaOne 2017 - CQRS, Event sourcing and Sagas

• Cedric Deprez
• 9 Min To Read
• 15 Jan, 2018
• • Software engineering

Yet another feedback on JavaOne 2017. This article is following these already published articles:

MoBlo, Modélisation pour BlockChain

• Hubert Marteau
• 23 Min To Read
• 10 Jan, 2018
• • Emerging technologies & trends

La BlockChain est une technologie de transactions partagées, ou non, par des utilisateurs. Comme toute technologie, la BlockChain a besoin d’outils de modélisation pour guider la conception de projets et chaque partie du projet a besoin de pouvoir modéliser avec le même outil de manière à être compris par toutes les personnes travaillant sur le projet (les personnes techniques, les chefs de projets, les maîtrises d’ouvrage, …). Tout comme une illustration permet de s’accorder sur une interface, tout comme l’UML permet de s’accorder sur le fonctionnement d’un logiciel, il est nécessaire de s’accorder sur les rôles des utilisateurs de la BlockChain ainsi que sur les différents types d’interactions.

JavaOne 2017 - Java 8, Three Years Ago. Functional & Reactive Programming

• Julien Villanti
• 12 Min To Read
• 06 Dec, 2017
• • Development and programming

Introduction

This article is part of a series of articles on the 2017 JavaOne Conference in San Francisco, CA. The first article, covering Java 9 and 2017 announcements, can be found here: JavaOne 2017 - Java 9, Jigsaw, Java EE 8 & EE4J .