Requirements for the Application Dispatcher
The following are required:
- The end user must have a Web browser.
- The site must have a machine that has a Web server.
- The site must have a SAS server for SAS software, Version 8 with an
Application Server installed.
These requirements (a Web browser, a Web server, and an Application
Server) can reside on one machine or on three separate machines.
You must install both the Application Broker and the Application Server
components of the Application Dispatcher. Install the Application Server on
a machine that has SAS software running, and install the Application Broker
on the machine that has your Web server running. A third component of the
Dispatcher, the Application Load Manager, is not required for a typical setup.
SAS software is not required on the Web server or the local desktop. The
installation requirements are
- Because the Application Broker is invoked by the Web server, the Web server must
already be installed on the machine where you plan to install the Broker.
- You must have WRITE access to the directory where your CGI scripts and
programs are stored.
- You must have already installed at least one Application Server.
- The machine on which you install the Broker must
have access by means of a TCP/IP-based network to the machine on which you
installed the Application Server.
- For pool services, a Load Manager must be running on the network. A
SAS spawner is also required if servers are to be started by using username or
passwords.
- You must have access to a Web browser to test your installation.
This documentation describes the Application Server for Version 8 of SAS
software. If your SAS server is an earlier version, refer to the documentation
for that version.
- You must install the Application Server on a machine where SAS software,
Version 8 is installed, because the Application Server is a SAS program.
- If you want to use a launch service, both the Web server and the SAS
server must reside on the same machine. This is because the Web server
invokes the Broker and the Broker invokes the SAS server.
- A socket service can be configured by using the Web server and the SAS
server on the same or on different machines.
- For increased functionality, you can take advantage of other SAS
software you already have installed, such as SAS/GRAPH, SAS/SHARE,
SAS/ACCESS, or SAS/EIS software.
- The machine on which the Application Server is installed must have
access to all of the data that is necessary to run the Dispatcher applications.
This data can be stored in local SAS data sets, in third-party databases
accessed through SAS/ACCESS software, or on remote servers
accessed through SAS/SHARE software.
- You must install both the Application Broker and the Application Server in order
to use Load Manager.
- Load Manager must have access to the Web server and the Application
Server by means of a TCP/IP-based network. You can install Load Manager on
your Web server machine, your SAS server machine, or any other machine
on your network.
- You can run Load Manager as an unattended, background process, or
you can start it as a system service.
