The document discusses the components and architecture of IBM WebSphere Message Broker. It describes the main components as the Message Brokers Toolkit, Configuration Manager, Broker, and optional User Name Server. It then provides details on the Broker, including that it routes messages using rules in message flows, can include multiple brokers across machines, uses WebSphere MQ queues, and is grouped into domains configured by the Configuration Manager. Execution groups are also described as a way to isolate message flows by executing them in separate processes.

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2. MESSAGE BROKER TRAINING MODULES
Introduction to the Broker
Components of the Broker
Basic Nodes
Routing Nodes
Exception Handling
Message Sets
Database Nodes
Mapping Nodes
Aggregation Nodes
Java Compute Node
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3. IBM Web Sphere Message Broker
 The main components of Web Sphere Message
Broker
 Message Brokers Toolkit (application development)
 Configuration Manager (system administration)
 Broker (runtime)
 User Name Server- optional pub sub lists
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4. IBM Web Sphere Message Broker
Broker
• A broker is a set of execution processes that hosts one or more
message flows to route, transform, and enrich in flight messages.
• The broker routes each message using the rules defined in message
flows and message sets, and transforms the data into the structure
required by the receiving application.
• You can install and create one or more brokers, on one or more
machines .
• This provides protection against failure, and can separate work
across .
• Applications send messages to the broker using Web Sphere MQ
queues and connections.
• Brokers are grouped into broker domains.
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5. Broker (cont.)
Broker domains:
one or more brokers that share a common configuration
Controlled by a single Configuration Manager.
 A broker name must be unique within the broker domain,
the same name used in the broker domain topology in the
workbench.
Each broker domain is coordinated by a Configuration
Manager.
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6. Broker (cont.)
DATABASE
The broker depends on a broker database to hold broker
information. This includes control data for resources
defined to the broker, for example deployed message flows
You need to define a database and authorize access for
specific users before you create the broker because
creating the broker creates tables within the database.
The database is also known as the broker's local persistent
store.
The broker connects to the database using an ODBC
connection.
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7. Broker (cont.)
• Resources associated with a broker
When you create a broker, the following resources are
also defined and created:
A set of database tables for storing the information used
by the broker to process messages at run time. You can
use one of a number of database products to create the
database tables, depending on which platform the product
is installed. You must create a DB2 database if you are
using Web Sphere Message Broker for z/OS.
A Web Sphere MQ queue manager, if one does not already
exist.
A set of fixed-name queues that are defined to the Web
Sphere MQ queue manager.
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8. Broker (cont.)
• Execution Group
An execution group is a named grouping of message flows
that have been assigned to a broker. The broker enforces a
degree of isolation between message flows in distinct
execution groups by ensuring that they execute in separate
address spaces, or as unique processes.
• A single default execution group is set up ready for use
when you create a reference to a broker in the workbench.
• If you create additional execution groups, you must give
each group a name that is unique within the broker, and
assign and deploy one or more message flows to each one.
• You can create and deploy execution groups either in the
workbench, or using commands .
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9. Broker (cont.)
• To add an execution group to a broker using the command
line on Windows, UNIX systems, and Linux:
Open a command prompt that has the environment
configured for Web Sphere Message Broker Version 6.0.
Enter the following command to add the execution group:
mqsicreateexecutiongroup -i host -p 1414 -q QMGR -b
BROKER –e EG1 where
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10. Broker (cont.)
• host
 Is the host name or IP address of the Configuration Manager for the
domain on which the broker resides.
1414
 Is the port on which the Configuration Manager's queue manager is
listening.
QMGR
 Is the name of the Configuration Manager's queue manager.
BROKER
 Is the name of the broker.
EG1
 Is the name of the execution group that you want to create.
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11. IBM Web Sphere Message Broker
Basic Components
Reference material
 MessageBrokersQuicktour.exe
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12. IBM Web Sphere Message Broker
Thank You
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