Lesson 3.1: Define a web application to run in the Liberty profile

Define the web feature to your server definition to enable application functions, such as session replication.

About this task

Deprecated feature The web feature is deprecated. Use the webApp feature when you want to replicate HTTP session data for fault tolerance.

The [Version 8.6 and later] webApp feature has meta type properties that you can set on the xsWebApp element of the server.xml file. For more information, see Enabling the eXtreme Scale webApp feature in the Liberty profile

Procedure

Add the following web feature to the Liberty server.xml file.

The web feature includes the client feature; however, it does not include the server feature. You likely want to separate your web applications from the data grids. For example, you have one Liberty server for your web applications and a different Liberty server for hosting the data grid.

<featureManager>
<feature>eXtremeScale.web-1.0</feature>
</featureManager>

Results

Your web applications can now persist its session data in a WebSphere® eXtreme Scale grid.

Example

See the following example of a server.xml file, which contains the web feature that you use when you connect to the data grid remotely.

<server description="Airport Entry eXtremeScale Getting Started Client Web Server">
<!-- 
 This sample program is provided AS IS and may be used, executed, copied and modified
 without royalty payment by customer
 (a) for its own instruction and study,
 (b) in order to develop applications designed to run with an IBM WebSphere product,
 either for customer's own internal use or for redistribution by customer, as part of such an
 application, in customer's own products.
 Licensed Materials - Property of IBM
 5724-X67, 5655-V66 (C) COPYRIGHT International Business Machines Corp. 2012
-->
    <!-- Enable features -->
    <featureManager>
        <feature>servlet-3.0</feature>
        <feature>jsp-2.2</feature>
        <feature>eXtremeScale.web-1.1</feature>
    </featureManager>

    <httpEndpoint id="defaultHttpEndpoint"
        host="*"
        httpPort="${default.http.port}"
        httpsPort="${default.https.port}" />

     <xsWebAppV85 objectGridType="REMOTE" objectGridName="session" catalogHostPort="remoteHost:2809" securityEnabled="false" /> 
  
</server>