Implementing and Administering WebSphere Business Integration Server V4.2.2

98 Implementing and Administering WebSphere Business Integration Server V4.2.2

4.1 Implementing WebSphere MQ Workflow Web Client

This section covers the installation, configuration, and validation of WebSphere

MQ Workflow Web client. We also cover the application server preparation and

the WebSphere MQ configuration.

The WebSphere MQ Workflow Web client enables a browser-based interface for

WebSphere MQ Workflow Runtime. This makes for easier WebSphere MQ

Workflow client setups (only the server changes, no client updates necessary)

and allows for a client concentrator machine to share WebSphere MQ workload

with the server. Furthermore, the client concentrator setup is necessary for

multiple WebSphere MQ Workflow Runtime servers to share a growing

workload.

You can also link the WebSphere MQ Workflow Web client feature to the

workflow server via WebSphere MQ Client connections. This opens a

WebSphere MQ Client connection from the WebSphere Application Server to the

workflow Runtime server for every client that needs workflow services.

The advantage of using a concentrator server is that it takes some of the

WebSphere MQ workload from the workflow Runtime server. Instead of a client

connection channel for every client that connects to the workflow system, there is

now only one pair of sending/receiving channels between the workflow

concentrator server and the workflow Runtime server.

Because WebSphere MQ Workflow inherently makes use of WebSphere MQ

cluster technology, a client concentrator setup also does load-balancing and

fail-over when needed.

Figure 4-1 on page 99 is a high-level graphic representation of all components

that are involved in this setup.

Chapter 4. Implementation of client components 99

Figure 4-1 WebSphere MQ Workflow Web client components topology

4.1.1 Setting up the application server machine on Windows

Log on with an administrator ID on the WebSphere Application Server machine.

Install WebSphere MQ server as described in the product documentation. It is

important to use WebSphere MQ server on this platform because if you only use

WebSphere MQ client, then every client that connects to the application server

will also result in a WebSphere MQ client connection to the WebSphere MQ

Workflow Runtime server. This in turn will result in severe scalability problems

when many users try to work with the system.

Before we can continue with the next step, make sure that the application server

is up and running. To start the application server, select Start → Programs →

IBM WebSphere → Application Server v5.0 → Start the server. This starts

the application server that hosts the administrative console and sample

WBIWF

WMQWF Runtime

UserID:ADMIN

db2inst1

WMQWF

Buildtime

WMQWF

Buildtime

WBIWAS

Browser

WF Web Client

Browser

WF Web Client

MQ Connection

Database Connection

HTTP Connection

ASQM

WAS

UserID:Administrator

WMQWF Web Client

WFQM

Browser

WF Web Client

WMQWF

Buildtime

ISDB

BTDB

RTDB

CMDB

WMQWF

Runtime client

WMQWF

Runtime client

WMQWF

Runtime Client

WBIDB

Attention: This redbook does not cover the installation and configuration of

the application server and WebSphere MQ.

Note: A WebSphere MQ license for the application server is included in the

WebSphere MQ Workflow license as long as that copy of WebSphere MQ is

only used for WebSphere MQ Workflow.

100 Implementing and Administering WebSphere Business Integration Server V4.2.2

applications. You can use the same application server to host the Web client, or

you can create a separate application server on the same host. To verify that the

server is up and running, select Start → Programs → IBM WebSphere →

Application Server v5.0 → Administrative Console.

Type any user ID into the input field (Figure 4-2) and click OK.

Figure 4-2 WebSphere Application Server Administrative Console logon

When the Administrative Console opens, click the Servers link in the left panel

(Figure 4-3) to show all servers.

Figure 4-3 WebSphere Application Server Administrative console

Chapter 4. Implementation of client components 101

Click Application Servers in the left panel, then click the Runtime tab in the

right column. Note the State of the server as indicated in Figure 4-4.

Figure 4-4 Application server state

If the state is Started, everything is ready for the WebSphere MQ Workflow Web

client installation.

4.1.2 WebSphere MQ Workflow Web client installation

This section outlines the components to install for WebSphere MQ Workflow

Web client, as well as how to install them.

1. After launching the setup program, select the language.

2. Now select All Components and click Next to continue (Figure 4-5 on

page 102). (We will not actually install everything; in the next step we

de-select some items.)