Choosing Oracle Reports Servlet, JSP, or Web Services

2-16 Publishing Reports to the Web with Oracle Reports Services

2.5 Setting Up a High Availability Environment

11g Release 1 11.1.1 provides numerous high availability HA enhancements, as listed in Table 2–1 in Section 2.1, What’s New In This Release? . This section discusses the following topics pertinent to establishing a high availability environment: ■ Maintaining High Availability ■ Configuring the rwservlet.properties file ■ Configuring Reports Server for High Availability

2.5.1 Maintaining High Availability

Oracle Fusion Middleware consists of many components that can be deployed in distributed topologies. The underlying paradigm used to enable high availability for Oracle Fusion Middleware is clustering, which unites various Oracle Fusion Middleware components in certain permutations to offer scalable and unified functionality, and redundancy should any of the individual components fail.

2.5.2 Configuring the rwservlet.properties file

Perform the following steps to configure the rwservlet.properties file: 1. Make sure that the in-process server has a unique name. You can check the server sub-element of the rwservlet.properties to verify the unique server name. 2. Configure cluster in the rwservlet.properties file. cluster clustername=ha_cluster clusternodes=ha_server2 cluster name should be same in all rwservlet.properties files. Cluster nodes should include in-process server names which are part of the cluster except the current one. More than one server should be separated by a colon. 3. Save the servlet configuration file. Alternatively, you can configure a cluster through Oracle Enterprise Manager: 1. Navigate to the Reports Application Home Page in Enterprise Manager.

2. From the Reports menu, select System MBean Browser.

The System MBean Browser page is displayed. 3. From the left content pane, expand Application Defined MBeans oracle.reportsApp.config Server: WLS_REPORTS Application: reports ReportsApp .

4. Select rwservlet from the list.

The Application Defined MBeans: Report sApp:rwservlet page is displayed. 5. Click the Operations tab. 6. Select addCluster. Note: Refer to the Oracle Fusion Middleware Enterprise Deployment Guide for Java EE and Oracle Fusion Middleware High Availability Guide for more information on the various solutions and techniques to achieve high availability in Oracle Fusion Middleware.