Multiple Webaccess And Webpublisher Applications - Novell GROUPWISE 8 - ADMINISTRATION Administration Manual

Figure 53-2
Web Server with
WebAccess and
WebPublisher Applications
There are various reasons why you might want to add additional WebAccess Agents, including:
Improving reliability: One WebAccess Agent might provide sufficient access and
performance, but you want to protect against downtime that would occur if the WebAccess
Agent became unavailable because of server failure or some other reason. Installing more than
one WebAccess Agent enables you to set up failover support to make your system more
reliable.
Improving performance: The WebAccess Agent is designed to be close to the GroupWise
databases. It requires direct access to a domain database and either direct access to post office
databases or TCP/IP access to the Post Office Agents. For best performance, you should ensure
that the WebAccess Agent is on the same local area network as the domain and post offices it
needs access to. For example, in most cases you would not want a WebAccess Agent in Los
Angeles accessing a post office in London.
Improving availability: The WebAccess Agent has 12 threads assigned to process user
requests, which means that it can process only 12 requests at one time regardless of the number
of users logged in. If necessary, you can increase the number of threads allocated to the
WebAccess Agent, but each thread requires additional server memory. If you reach a point
where WebAccess is unavailable to users because thread utilization is at a peak and all server
memory is being used, you might need to have several WebAccess Agents, installed on
different network servers, servicing your post offices. For information about changing the
number of allocated threads, see
page 892.

53.1.2 Multiple WebAccess and WebPublisher Applications

As with the WebAccess Agent, you can also install the WebAccess Application and WebPublisher
Application to multiple Web servers, as shown in the following diagram.
878 GroupWise 8 Administration Guide
Multiple WebAccess Agents
WebAccess
Agent
WebAccess
Agent
WebAccess
Agent
Post Office
Post Office
Domain
Post Office
Post Office
Domain
Post Office
Post Office
Domain
Section 54.1, "Configuring the WebAccess Agent," on