JBoss EAP 8 is built to provide simplified deployment and full Jakarta EE performance for applications in any environment. Whether on-premise or in virtual, private, public, and hybrid clouds, JBoss EAP features a modular architecture that starts services only as they are required.

JBoss EAP 8 is built for performance and flexibility in modern application environments. Its modular architecture and services-driven set of components reduces scale-out times and provides flexibility for applications deployed in different environments.


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With the JBoss Enterprise Application Platform expansion pack, developers can use Eclipse MicroProfile application programming interfaces (APIs) to build and deploy microservices-based applications. Eclipse MicroProfile provides enterprise Java developers with enhanced APIs and support for common microservices-based patterns for deployment, configuration, security and observability.

Red Hat offers a variety of options to deploy JBoss Enterprise Application Platform as a fully-managed or self-managed application service. This gives users the ability to reduce costs and expand capabilities while preserving their existing investments.

Configuration in WildFly is centralized, simple and user-focused. The configuration file is organized by subsystems that you can easily comprehend and no internal server wiring is exposed. All management capabilities are exposed in a unified manner across many forms of access. These include a CLI, a web based administration console, a native Java API, an HTTP/JSON based REST API, and a JMX gateway. These options allow for custom automation using the tools and languages that best fit your needs.

WildFly does classloading right. It uses JBoss Modules to provide true application isolation, hiding server implementation classes from the application and only linking with JARs your application needs. Visibility rules have sensible defaults, yet can be customized. The dependency resolution algorithm means that classloading performance is not affected by the number of versions of libraries you have installed.

WildFly takes an aggressive approach to memory management. The base runtime services were developed to minimize heap allocation by using common cached indexed metadata over duplicate full parses, which reduces heap and object churn. The administration console is 100% stateless and purely client driven. It starts instantly and requires zero memory on the server. These optimizations combined enable WildFly to run with stock JVM settings and also on small devices while leaving more headroom for application data and supports higher scalability.

WildFly implements the latest in enterprise Java standards from Jakarta EE and Eclipse MicroProfile. These improve developer productivity by providing rich enterprise capabilities in easy to consume frameworks that eliminate boilerplate and reduce technical burden. This allows your team to focus on the core business needs of your application. By building your application on standards you retain the flexibility to migrate between various vendor solutions.

In this video we are covering the pre-requisites required to interact with your OpenShift cluster from WildFly Glow CLI. Once the environment is setup, we are building and deploying an application to OpenShift cluster.

In this article, Jeff Mesnil shows how it is possible to leverage the WildFly Maven plugin to handle the configuration and deployment of WildFly separately from the application development in a loose GitOps manner.

As a layman, how do I understand the difference between web server and application server ? If you could give an example using a Java based web app in very "simple" terms that would be really great..

An application server (like WebLogic, WebSphere, JBoss AS, Glassfish, etc) usually includes a web server, but also adds a lot more features. The most important is that it manages objects. Whether they will be servlets (Servlet container), EJBs (ejb container), JMS listeners, etc.

Application server can execute Enterprise application, i,e (servlets, jsps, and EJBs) it is having two containers 1. Web Container(for interpreting/executing servlets and jsps) 2. EJB container(for executing EJBs). it can perform operations like load balancing , transaction demarcation etc etc

I would say definitions vary. In the generalized context, a Web Server is a server that can receive incoming web-requests and have knowledge about how they should be handled and responded to. Some requests are static (html files, images etc), some are dynamic. In the case of dynamic requests, the web server will know where to route handling of the request, could be a JSP page or a java servlet, a PHP script, a perl CGI script etc etc.

An Application Server, by contrast, is a general execution environment that offers some type of middleware tier support. Examples are EJB containers or the .NET framework built into Windows (in where Windows in itself is an "application server"). There is no inherent requirement that an application-server have anything to do with web requests (although many do), it's just a general execution context and container for any type of application that offers some sort of additional middleware support.

In a purely web-centric context, many people will draw the line at static vs dynamic content. In this definition, a "web server" can only handle requests for static information itself and it will pass on requests for dynamic content to the "application server". For example, Apache httpd is a web server and Tomcat is an application server. IIS is a combination of both. In the Java web world, an application server can be either a servlet container (like Tomcat), or a full blown Java EE container (like JBoss, WebLogic or WebSphere) that provides the Java EE middleware support (EJB) container in addition to the servlet container.

With numerous deployment options, JBoss EAP supports both modernization and cloud-native application development efforts. Red Hat supports deploying JBoss EAP on-premise, on hyperscalers, and on OpenShift.

Traditional, on-premise EAP deployments on virtual machines continue to be a great option for customers who have the infrastructure and personnel to host and maintain their own application infrastructure.

Moving EAP applications to OpenShift is a great way to reduce operational costs, improve resource utilization, and accelerate development cycles. EAP is supported on any OpenShift platform including Red Hat OpenShift on AWS (ROSA), Azure Red Hat OpenShift (ARO), and Red Hat OpenShift Google Cloud.

JBoss EAP is optimized to develop, deploy, and manage Java applications on OpenShift so developers can take advantage of OpenShift's cloud-native capabilities, including auto-scaling, clustering support, and flexible deployments Learn more.

JBoss EAP includes a flexible web server, Undertow, as well as enterprise features such as failover, clustering, caching, intelligent load balancing, and distributed deployment performance-tuned for highly transactional applications.

JBoss EAP includes a security subsystem called Elytron, that provides a unified framework to manage and configure access for standalone servers and managed domains. It also includes native support for OpenID Connect (OIDC).

JBoss EAP includes a management console and CLI that provides administrators with a unified view into configurations, deployments, security, and subsystems as well as the ability to manage servers offline. The CLI can be used with popular configuration management tools, such as Red Hat Ansible or Puppet.

JBoss EAP provides tools to boost productivity and innovate faster with features like self-service application provisioning, simplified stack management, and application auto-scaling. It also supports continuous testing and integration technologies such as Arquillian for integration testing, Maven for automated and managed build processes, and Jenkins for continuous integration and continuous delivery.

You mentioned that JBoss becomes very slow when you use autoDeploy and keep the server running for a month or more. That's likely to be because your permanent generation memory is filling up over time. See this related question.

I think you'd be best served by using the autoDeploy feature as other suggest, and restarting the entire server periodically to clear out PermGen. There's several ways to track PermGen utilization; I add the following to JAVA_OPTS in run.conf:

Typically to redeploy an application that is self-contained in an ear in jboss just requires replacing the ear. If there is more to the application (such as classes that have to go in the jboss lib directory) then it may require a restart.

In terms of how to restart it, it depends what you are using to start jboss as a service. Some service starters do not actually control the jvm after they start it, so restarting the service just starts a second instance. You can shutdown jboss with the shutdown script in the JBOSS_HOME/bin directory (shutdown.bat) and then deploy and restart the service. Be sure to pause when you do this, as the shutdown command will issue the shutdown request, the server may still be running.

JBoss Application Server is the open source implementation of the Java EE suite of services. It comprises a set of offerings for enterprise customers who are looking for preconfigured profiles of JBoss Enterprise Middleware components that have been tested and certified together to provide an integrated experience. It's easy-to-use server architecture and high flexibility makes JBoss the ideal choice for users just starting out with J2EE, as well as senior architects looking for a customizable middleware platform.

Because it is Java-based, JBoss Application Server is cross-platform, easy to install and use on any operating system that supports Java. The readily available source code is a powerful learning tool to debug the server and understand it. It also gives you the flexibility to create customized versions for your personal or business use. 0852c4b9a8

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