Introduction

The Client Manager is a CA Gen-generated GUI application that resides on a client workstation. The following illustration shows the Client Manager main GUI window.

Client Manager GUI window

The Client Manager provides communications support for CA Gen Distributed Processing Client (DPC) applications. The Client Manager transmits transaction data between the DPC and certain Distributed Processing Server (DPS) application components. The Client Manager provides communications support to target server environments that make use of TCP/IP, LU 6.2, or NonStop RSC/MP as their communications protocols.

The Client Manager accepts input from CA Gen client applications and optionally uses its Directory Services user exit to determine the targeted server environment that hosts the distributed processing server to which the transaction request should be routed.

The Client Manager is capable of concurrently serving many CA Gen Client requests targeting a variety of CA Gen servers. The Client Manager provides the ability for individual CA Gen servers to be hosted by different server environments. The Client Manager can simultaneously support the use of different transports protocols when processing a collection of cooperative flow requests.

The Client Manager and the clients it serves communicate using a collection of Windows inter-process communications mechanisms. These mechanisms include mailslots, shared memory, and named semaphores.

The Client Manager can be configured to communicate with the target server environments hosting the CA Gen distributed processing servers through one or more of the following supported communication protocols and APIs:

TCP/IP (Sockets)
LU 6.2 (CPI-C)
NonStop Remote Server Call (RSC/MP)

The following diagram illustrates the server transports supported by a Client Manager:

Distributed Processing Clients

The following table identifies target server environments capable of being served by a Client Manager:

Server Environment	CPI/C (LU 6.2)	Sockets (TCP/IP)	NonStop Remote Server Call (RSC/MP)
z/OS CICS	X	X	n/a
z/OS IMS	X	X	n/a
Transaction Enabler	n/a	X	n/a
Tuxedo	n/a	X	n/a
Java EJB (using CFB Server)	n/a	X	n/a
.NET Servers	n/a	n/a	n/a
Windows MQSeries	n/a	n/a	n/a
UNIX MQSeries	n/a	n/a	n/a
NonStop	n/a	n/a	X

Following are discussed in detail within this guide:

An overview of conceptual information about the CA Gen Client Manager in a CA Gen Client/Server Distributed Process application network
General Client Manager configuration
Configuring multi-instance Client Managers for use in a Windows Terminal Services environment
Configuring the Client Manager for connection to one or more CA Gen Server environments
Client Manager security processing
A discussion and implementation example of transaction routing
Client Manager transmission statistic gathering
Test procedures for verifying proper Client Manager communications to specific server execution environments
User exits which can customize certain Client Manager behavior