WebSphere Application Server V8.5 Administration and Configuration Guide for the Full Profile

472 WebSphere Application Server V8.5 Administration and Configuration Guide for the Full Profile

ODR. For Internet Inter-ORB Protocol (IIOP) and Java Message Service (JMS) requests,

traffic shaping occurs at the application server.

Autonomic managers play a key role in traffic shaping. They perform the classification and

prioritization of requests and manage the environment to balance the workload.

 Health management

The health monitoring and management subsystem continuously monitors the operation

of servers against user-defined health policies to detect functional degradation that is

related to user application or server malfunctions.

 Runtime operation monitoring

The visualization components enhance the administrative console to provide live data on

the performance and health characteristics of the entire cell. Refer to 16.5, “Monitoring

operations” on page 584 for further information about runtime operation monitoring.

 Application edition management

Loss of service to users means loss of business to you. The application edition

management feature ensures that the users of your application experience no loss of

service when you install an application update in your environment. Refer to 24.4,

“Application edition management and rollout” on page 889 for further information about

how to use application edition management.

The topology shown in Figure 13-1 illustrates a WebSphere Application Server Network

Deployment topology with the web server enabled for Intelligent Management.

Figure 13-1 Intelligent Management topology with the web server enabled for Intelligent Management

13.2 Configuring dynamic operations

The dynamic operations environment consists of autonomic managers whose purpose is to

maximize utilization using defined business goals. Dynamic operations allow an application

environment to scale as required by the virtualization of WebSphere resources and the use of

Dynamic Cluster 02

Dynamic Cluster 01

Dynamic Cluster 03

Application

Server 01

Application

Server 02

Application

Server 03

Application

Server 01

Application

Server 02

Application

Server 03

Application

Server 01

Application

Server 02

Application

Server 03

IBM HTTP Server

Plug-in

Enabled for

Intelligent

Management

Chapter 13. Intelligent management 473

a goals-directed infrastructure. Therefore, you can increase the speed at which your

environment adapts to the business requirements.

Using the dynamic operations features of WebSphere Application Server you can change the

way a typical WebSphere environment is configured to one that has the following features:

 Improves the utilization of available resources such as CPU and memory

 Classifies and monitors the workload

 Provides a business-centric view of the workload and how it is performing

 Responds in real time to changes in the workload mix (without human intervention if so

desired) using business guidelines that the organization has specified

13.2.1 Creating the ODR

In versions prior to V8.5.5, the ODR is implemented as a server. With WebSphere Application

Server V8.5.5, the ODR can be configured to run in the web server tier by enabling Intelligent

Management in the web server plug-in. This option is available for Apache and IBM HTTP

Servers. Using the plug-in option can simplify your topology, reduce the latency due to one

less hop in the network, and be implemented easily.

Before determining whether to use the ODR server or the web server plug-in with Intelligent

Management enabled, be aware that the plug-in option has the following limitations:

 If you configure the same application in multiple cells, there is no support for load

balancing or failover between cells.

 CPU or memory overload protection is not supported.

 There is no support for queuing and reordering of requests from service policies. The

dynamic clusters are supported.

 Highly available deployment manager topology is not supported.

Enabling Intelligent Management in the web server plug-in

The following steps describe how to enable Intelligent Management in the web server plug-in.

In this example, the IBM HTTP Server is the target web server. First, configure the web server

in the administrative console. After the configuration is complete, perform the following steps:

1. Click Servers  Server Types  Web servers.

2. Click the web server to open the configuration.

3. In the Additional Properties section, click Intelligent Management.

4. In the General Properties section, select the Enable check box. Click Apply to save the

changes to the master repository.

5. Generate the plug-in and propagate it to the web server:

a. Click Servers  Server Types  Web servers.

b. Select the check box by the web server name.

c. Click Generate Plug-in.

d. Select the check box by the web server name again and click Propagate Plug-in.

It is not necessary to restart the web server process in Apache web server models; the

process will reload the configuration file. After the save is completed, the plugin-cfg.xml file

contains the information required for the web server to connect to the REST service port. You

will see this service in the administrative console listed as XDAGENT_PORT in the port list.