Continuando con nuestra serie de blogs de introducción, este blog va a demostrar como añadir la capacidades de balanceo de carga a un Servidor Web Apache y asi re-enviar las peticiones HTTP a nuestro cluster de Payara Server.

Continuing our introductory blog series, this blog will demonstrate how to set up a simple Hazelcast cluster of two instances.

In contrast to a development environment, where a single server is enough to act as a "proof of concept", in production it is usually necessary to look at reliably hosting your application across multiple redundant hosts to guarantee a reliable service and allow for future scaling. With Payara Server, it is possible to easily create and add instances to clusters using Hazelcast, making configuration of a distributed application a breeze.

Continuando con nuestra serie de introducción, este blog va a demostrar como configurar un cluster sencillo de dos instancias mediante Hazelcast.

Most modern-day web applications need some way to store data in a database. Oracle arguably gives you the best RDBMS solution when it comes to security, support, and scalability. Oracle XE is the version that is most suitable for developers for small or personal projects, and should also be compatible with the full version of Oracle database. This guide will walk through the configuration of Oracle XE, and how to configure Payara Server to use it.

If you are creating a Java EE project, it is important to have a server defined in Eclipse so you can easily test your applications from the IDE - a much smoother workflow than building an artifact and manually deploying to Payara Server!

When developing an application on Payara Server, it is very common to deploy directly to a local Domain Admin Server (DAS) instance, since this is the easiest and most straightforward way to test some code quickly from an IDE. When taking an application further towards production, however, it is highly likely that a domain with several standalone or clustered instances will be used across remote hosts. In this case, it will be very hard to ignore an aspect of Payara Server that may not have been obvious before this point - the concept of nodes.

This blog post will cover both what a node is and the types of nodes available with Payara Server.

Cuando se desarrolla una aplicación en Payara Server, es muy común desplegar directamente en la instancia local del Servidor de Administrador de Dominios (DAS), ya que esta es la forma más sencilla y directa para probar rápidamente las aplicaciones desplegadas en su desarrollo. Al llevar una aplicación a producción, sin embargo, es muy probable que se utilice un dominio con varias instancias independientes o en cluster que residen en múltiples servidores remotos. En este caso, sería muy difícil ignorar un aspecto de Payara Server que puede no haber sido obvio hasta ahora - el concepto de nodos.

This blog uses NetBeans 11.1. If you're using an older version, you may need to perform slightly different steps to get the same result.

When testing an app to be run on Payara Server, it can be extremely useful to be able to test your app continuously from your IDE. If you're using NetBeans this is made very easy. Follow the steps in this blog to setup NetBeans to use Payara Server for running your web apps.

See here for the original version in English language. 

In the first blog of this series, we configured our Apache Web Server. Our next step will be to set up request forwarding to send traffic to Payara Server. If you need guidance on installing Payara Server on Ubuntu, we already have a blog post covering the installation of a JDK and Payara Server which we would recommend you read before continuing with this blog.