WAS v8.5 > Overview

WAS architecture

An application server is a JVM running Java applications. Generic servers are application server instances associated with non-WebSphere servers and processes. Application server work with web servers to handle requests for web applications. Communication is through an HTTP plug-in installed on the web server host.

JMS providers include...

A virtual host is a configuration enabling a single host to resemble multiple logical hosts. Java EE web modules are mapped to a virtual host at installation time. Web modules that use the same virtual host can dispatch to resources within one another.

WebSphere variables are used to configure product path names such as JAVA_HOME, and environmental customization values.

Shared libraries are files used by multiple applications. Classes in the library are associated with servers and applications via the class loader.

The dmgr console graphical interface provides guided deployment and systems administration tasks.

The wsadmin scripting program enables scripted administration.

To develop our own administrative programs, use the Java Management Extensions Java programming interface

Use the admin command-line tools to execute specific tasks such as starting and stopping application servers, checking server status, and configuring nodes.

Configuration data resides in XML files that are manipulated by administrative clients.

Performance monitoring tools include :

The performance advisors analyze performance data and provide configuration recommendations.

Several diagnostic tools are available for this product.

Refer to the WAS Technical Support website for current information on known problems and their resolution.


Related concepts

Three-tier architectures
Three-tier architectures
New features


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