MQ Series

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Intro ------------------------------

MQ Series (also called "MQ", "MQSeries", and "IBM WebSphere MQ") is a messaging solution with a central server. Process A can put a message there, and process B can retrieve the message. If you login onto the prompt of the actual box running MQ - you will see hundreds (if not thousands) processes in memory working on receiving/sending messages. Messages can be huge. The whole system is very reliable. And it supports transactions. Great tool - but expensive (of course). It allows perfect de-coupling between systems. Imagine that system A needs to send something to system B. It puts the message on te MQ server - and continues with whatever it was doing. System B will retrieve the message at its convenience. If system B is turned off for couple hours for maintenance - no problem. Once "B" will go back online - it will retrieve the messages. Nothing will be lost. And system "A" never has to wait for system "B".

MQ is a central component from IBM products for providing SOA (Service Oriented Architecture).

MQ has API-s for all common languages, it has a bridge to send/receive messages via http - and MQ can be treated as a web service.

See good brief overview on wikipedia: http://en.wikipedia.org/wiki/IBM_WebSphere_MQ

Messages and Queues

Message is a piece of information (text or binary) with some extra information (for routing and delivery).

Message Queue (MQ) is the storage for messages.

Message Broker

Websphere Message Broker – http://www-01.ibm.com/software/integration/wbimessagebroker

Message Broker distributes information and data generated by business events in real time to people, applications, and devices throughout your extended enterprise and beyond.

• Provides a smart approach to SOA, extending the reach of your business beyond your firewall by supporting a broad range of multiple transport protocols and data formats
• Integrates multiple applications, networks, and device types using a platform-independent based enterprise service bus that lets you conduct business reliably and securely
• Increases business agility and flexibility, extending easily to a Federated ESB model, while reducing development costs by separating integration logic from applicationsImproves the flow of information around the business, moving away from hard-coded point-to-point links to more flexible distribution mechanisms such as publish/subscribe and multi-cast
• Uses a simple programming model for connectivity and mediation, including a robust set of pre-built mediation function and ways to customize mediations
• Exploits the industry-leading WebSphere MQ messaging infrastructure, and supports transformation options with graphical mapping, Java, ESQL, XSL, and WebSphere Transformation ExtenderDelivers extensive administration and systems management facilities for developed solutions

IBM® WebSphere® Message Broker V6.0.2 is the new Message Broker Test Client

WebSphere Message Broker V6.0.2 Toolkit

Transformation Tolkit

MQTX (Transformation Toolkit),

WTX (Websphere Transformation Extender for Message Broker)

- http://www-01.ibm.com/software/integration/wdatastagetx/index.html

- http://www-01.ibm.com/software/integration/wbimessagebroker/dstxextender/

Using ODBC and Message queues for data interchanges.

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