Apple Mac OS X Server Java Application Server Administration For Version 10.3 or Later Manual de usuario descargar pdf (Pagina 7)

JBoss is an open-source highly popular Java-based application server. Based on the Java 2, Enterprise Edition

(J2EE) platform, JBoss provides an affordable delivery system for enterprise applications. Applications that

follow the J2EE standard can be deployed on other application servers, such as WebLogic, WebSphere, and

JRun, with little or no modification. JBoss provides many useful features in addition those defined in the J2EE

standard, including support for clustering, session replication, mail, and security.

OS X Server includes two easy-to-use, HTML-based tools that facilitate the configuration of J2EE applications

for deployment: The deployment tool and the management tool. The deployment tool allows you to open

application or component archives (EAR files, WAR files, JAR files, SAR files, and so on) without having to

manually decompress the archives. The application lets you view or change the values of settings specified in

the META-INF and WEB-INF directories of the archives. See Configuring Applications (page 9) for more

information.

The management tool allows you to manage application servers (JBoss instances) running on one or more

computers. This application lets you start and stop services provided by individual application servers, configure

services, and create data sources, queues, and topics. See Administering Application Servers (page 31) for

details.

This chapter provides an overview of JBoss for OS X Server.

JBoss in OS X Server

OS X Server version 10.3 includes JBoss version 3.2.2RC2. To provide a high level of availability, OS X Server

includes a “watchdog” process that ensures that the application server is always running (if you turn on the

application server in Server Admin). If the application server freezes or crashes, the daemon restarts it

automatically.

In addition, OS X Server offers load balancing and session failover through Apache and JBoss:

●

Apache, coupled with the mod_jk plug-in, provides HTTP load balancing with session affinity (sticky

sessions) and connects to JBoss instances through AJP connectors.

●

JBoss offers session failover through HTTP session state replication in the cluster configuration.

●

JBoss also provides load balancing for enterprise beans, including failover for stateful session beans, and

support for session affinity.

Application Server Overview

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Apple Mac OS X Server Java Application Server Administration For Version 10.3 or Later Manual de usuario Pagina 7