A Comprehensive Guide to IBM WebSphere Host Publisher Version 3.5

74 IBM WebSphere Host Publisher Version 3.5

Figure 4-4 License Management window

If you purchase more licenses and want to change your current value, you can do

so using Host Publisher Server Administration as follows (see Figure 4-4):

1. Start Host Publisher Server Administration.

2. In the navigation area on the left, click:

Administration > License Management.

3. Type the new value, then click Set.

4.4.2 Connection Pools

Connection pools are collections of communication links to backend data

sources, such as 3270 applications or databases. When an Integration Object is

run on behalf of a client request, the Integration Object obtains an available

connection from a pool, uses it for access to the data source, then returns the

connection back to the pool for reuse by another Integration Object.

Chapter 4. Administration 75

For more information about connection pools, see Chapter 5, “Connection

management” on page 117.

Note: As an alternative to pooled connections, Integration Objects can also use

dedicated connections. However, dedicated connections will add extra overhead

since logon (connect) and logoff (disconnect) will be executed for each request.

Figure 4-5 Connection Pools window

Pooling of connections allows the overhead of establishing the connection to be

absorbed in its first use. Each Integration Object reusing this connection benefits

from the prior establishment of the connection and can run faster.

A connection pool and its status will not appear on this panel until at least one

connection from the pool is allocated.