Specifying the Maximum Number of Workstation Clients

To enable Workstation clients to join an application, you must specify the MAXWSCLIENTS parameter in the MACHINES section of the UBBCONFIG file.

MAXWSCLIENTS is the only parameter that has special significance for the Workstation feature. MAXWSCLIENTS tells the BEA Tuxedo system at boot time how many accesser slots to reserve exclusively for Workstation clients. For native clients, each accesser slot requires one semaphore. However, the Workstation handler process (executing on the native platform on behalf of Workstation clients) multiplexes Workstation client accesses through a single accesser slot and, therefore, requires only one semaphore. This capability is an additional benefit of the Workstation component. By putting more clients on workstations instead of on the native platform, an application reduces its IPC resource requirements.

MAXWSCLIENTS takes its specified number of accesser slots from the total set in MAXACCESSERS. This is important to remember when specifying MAXWSCLIENTS; enough slots must be left to accommodate native clients as well as servers. If you specify a value for MAXWSCLIENTS greater than that of MAXACCESSERS, native clients and servers fail at tpinit() time. The following table describes the MAXWSCLIENTS parameter.