UMDS User Guide

Informatica

UMDS (Version 6.13.1)



UMDS User Guide



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Introduction

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UMDS Overview  <-

This document introduces the basic concepts and design approaches used by Ultra Messaging Desktop Services (UMDS). The reader is assumed to already be familiar with basic UM concepts. See the Ultra Messaging documentation set for full information about UM.

Ultra Messaging Desktop Services (UMDS) extends Ultra Messaging to diverse desktop networks throughout an enterprise. With the UMDS client-server model, desktop applications can receive and send topic-based messages.

The UMDS Server runs on a server-class machine and communicates over TCP connections with desktop-class machines. A UMDS Server can also communicate with other Ultra Messaging components, such as UMS applications and other UMDS Servers.

Customer desktop applications call the UMDS API to send and receive messages over a TCP connection to the UMDS Server. This API is a subset of Ultra Messaging functionality, for Java and .NET. The UMDS Server routes messages to clients according to topic interest. The UMDS Server also routes messages between desktop UMDS Client applications and other Ultra Messaging components.

You can centrally manage UMDS Client functionality from the UMDS Server, and use the Web Monitor to view client connection statistics and the server's current configuration file.

UMDS supports redundant servers so that if one server fails, clients can reconnect to an alternate server and resume messaging (see UMDS Server List).

Note
In this document, links to the UMDS API reference documentation will always be to the Java API. The .NET and Java APIs are identical for all practical purposes, and the two reference documents can be used interchangeably.


UMDS Architecture  <-

A UMDS implementation comprises a UMDS server daemon and your applications written with UMDS client API calls. The UMDS server is an Ultra Messaging daemon that is part of an Ultra Messaging backbone. The UMDS server and the UMDS client application communicate using TCP.

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