3.1 Application Server Control

   

The Application Server Control tool is the main administrative console for Oracle Application Server. An Application Server Control instance is installed in each application server home and provides a web-based interface for administering that application server. Figure 3-1 shows the Application Server Control home page.

Figure 3-1. Application Server Control home page
figs/oas_0301.gif

From the home page, you can:

  • Start, stop, enable, disable, and configure Oracle Application Server components and view their status

  • Create additional OC4J components

  • Deploy applications

  • View pie charts showing CPU and memory usage

  • Monitor hosts

  • Connect to links to manage J2EE applications, ports, and infrastructure

  • View log files, and manage the log repository

For example, you can examine the Log Repository (described later) through a Log Viewer by selecting the Logs link appearing in the upper right on this page.

Application Server Control provides a wide spectrum of capabilities. The following sections look at a few typical administrative functions available through this tool.

3.1.1 Application Server Control Management Stack

The Application Server Control management stack that enables the management functions you can perform with Application Server Control consists of the following services, introduced in Chapter 2:


Distributed Configuration Management

DCM manages configurations tied to a specific OracleAS Metadata Repository and can propagate Oracle Application Server configurations across an entire cluster.


Oracle Process Manager and Notification

OPMN provides process control (e.g., starting and stopping application servers) and process monitoring for application servers.


Dynamic Monitoring Service

DMS collects performance data, including OC4J application and OracleAS Web Cache performance. The data is collected by the Oracle Enterprise Manager 10 g Management Agents for use in real-time performance monitoring and for historical monitoring in Grid Control.

Application Server Control uses these facilities in a variety of ways. For example, you can use Application Server Control to configure the two key Oracle Application Server business intelligence components, OracleAS Discoverer and OracleAS Reports Services. You can also monitor OracleAS Reports Services performance, and can view and manage OracleAS Reports Services job queues.

3.1.2 Managing Ports

You can use Application Server Control to reconfigure ports, used by Oracle Application Server components and services, and allocated during installation. You can also view or change these ports. Links to the Oracle Application Server documentation make it easy to prevent conflict with other ports on your system by determining ports that may be affected by your changes.

3.1.3 Viewing and Managing Log Information

During normal operation, various Oracle Application Server components populate logs with information ”for example, startup and shutdown information, warnings, and errors. You can use Application Server Control to view this information.

Oracle Application Server components that generate log files include:


Core components

BC4J, OC4J, Oracle HTTP Server, and OracleAS Web Cache


Management and installation components

Oracle Enterprise Manager 10 g , DCM, OPMN, and the Universal Installer


Deployable tools and enabling technology components

OracleAS Portal, OracleAS Discoverer, OracleAS Forms Services, OracleAS Reports Services, and OracleAS Wireless

Using the Logs link in Application Server Control, you can easily search for log files related to any of these components. You can also browse these logs directly from the Application Server Control user interface to help you diagnose problems.

You have the option of consolidating log information into a single repository, and doing so simplifies the diagnostic process when you are analyzing multiple components. The Log Loader, started through Application Server Control, initiates and populates the Log Repository. Warning and error messages that are gathered here are used when you troubleshoot problems that can occur in specific Oracle Application Server components. You'll also find these useful when reporting problems to Oracle Support (described in the last section of this chapter).

3.1.4 Administering J2EE

You can perform a variety of J2EE administration functions by invoking the OC4J home page through Application Server Control. These include:

  • Adding OC4J instances (via a wizard)

  • Configuring J2EE resources, J2EE application security, Java Messaging Services, and other J2EE services

  • Deploying and monitoring J2EE and Web Services applications (via a wizard-based interface)

3.1.5 Administering Clusters

You can also use Application Server Control to manage a group of application servers hosting a common set of OC4J applications as a cluster. Setting up a cluster allows you to modify common configuration settings only once for all cluster members . You can also deploy applications across the cluster in a single step. The architecture of clusters is described in Chapter 2.

   


Oracle Application Server 10g Essentials
Oracle Application Server 10g Essentials
ISBN: 0596006217
EAN: 2147483647
Year: 2004
Pages: 120

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