Buses [Settings]
A service integration bus supports applications using message-based and service-oriented architectures. A bus is a group of interconnected servers and clusters that have been added as members of the bus. Applications connect to a bus at one of the messaging engines associated with its bus members.
To view this page in the console, click the following path:
Configuration tab
The Configuration tab shows configuration properties for this object. These property values are preserved even if the runtime environment is stopped then restarted. See the information center task descriptions for information about how to apply configuration changes to the runtime environment.
General Properties
Name
The name of the service integration bus. Choose a unique name.
The system is unable to differentiate between upper and lowercase characters in bus names. For example, you will not be able to create two buses named BUS1 and bus1 because the names will not be recognized as different to each other.
| Information | Value |
|---|---|
| Required | No |
| Data type | String |
UUID
The universal unique identifier assigned by the system to this bus for administrative purposes.
| Information | Value |
|---|---|
| Required | No |
| Data type | String |
Description
An optional description for the bus, for administrative purposes.
| Information | Value |
|---|---|
| Required | No |
| Data type | Text area |
Inter-engine transport chain
The transport chain used for communication between messaging engines in this bus.
The transport chain must correspond to one of the transport chains defined in the Messaging engine inbound transports settings for the server. All servers automatically have a number of transport chains defined to them, and it is also possible to create new transport chains.
The default transport chain is InboundBasicMessaging.
For more information see Message security in a service integration bus.
| Information | Value |
|---|---|
| Required | No |
| Data type | String |
Discard messages
Whether messages on a deleted message point should be retained at a system exception destination or can be discarded.
| Information | Value |
|---|---|
| Required | No |
| Data type | Boolean |
Configuration reload enabled
Select this option to enable certain changes to the bus configuration to be applied without requiring the messaging engines to be restarted.
Select this option to enable automatic update of configuration information about all the messaging engines on the bus.
Changes to bus destinations or mediations are applied when destinations or mediations are added to or removed from the bus.
Changes to the modifiable configuration information for any foreign bus connections are also updated automatically. The time when these changes take effect varies:
- Foreign Bus Connection properties
- Immediately
- WebSphere MQ link properties
- On channel restart, except Description (immediately), and Initial State (on messaging engine restart)
- MQ sender channel properties
- On channel restart, except Initial State (on messaging engine restart or sender channel creation)
- MQ receiver channel properties
- On channel restart, except Initial State (on messaging engine restart or receiver channel creation)
- Publish/subscribe broker profile (0 to n) properties
- Immediately
- Service integration bus link properties
- On link restart, except Description (immediately), and Initial State (on messaging engine restart or link creation)
The Configuration reload enabled property also needs to be set on the SIB Service of the application server. To ensure that dynamic configuration updates are made on an application server, click Servers -> Server Types -> WebSphere application servers -> server_name -> [Server messaging] SIB service to display the Application Servers window, then select Configuration reload enabled.
To ensure that dynamic configuration updates are made to each node, click System administration -> Console Preferences to display the Console Preferences window then select Synchronize changes with Nodes.
| Information | Value |
|---|---|
| Required | No |
| Data type | Boolean |
Default messaging engine high message threshold
A threshold above which the messaging system will take action to limit the addition of more messages to a message point.
When a messaging engine is created on this bus, the value of this property is used to set the default high message threshold for the messaging engine.
| Information | Value |
|---|---|
| Required | No |
| Data type | Long |
| Range | 1 through 9223372036854775807
|
Bootstrap members
Bus members, servers and clusters that client applications can target to bootstrap into the given bus.
Select one of the following bootstrap member policies to limit the range of available bootstrap members:
- All members of the cell with the Service Integration Bus Service enabled
- This the default policy. Use any server in the cell that has the Service Integration Bus Service enabled to service bootstrap requests.
- Bus members and nominated bootstrap members
- Use bus members and nominated cell members to service bootstrap requests.
- Bus members only
- Use bus members only to service bootstrap requests.
| Information | Value |
|---|---|
| Required | No |
| Data type | Radio button |
Topology
- Bus members
- New bus member link
- Messaging engines
- A messaging engine manages bus resources and provides a connection point for applications.
- Foreign bus connections
- A foreign bus is another bus with which this bus can exchange messages.
- Bootstrap members
- Bus members, servers and clusters that client applications can target to bootstrap into the given bus.
Destination resources
- Destinations
- A bus destination is a logical address within a service integration bus.
- Mediations
- Mediations define the information needed by a messaging engine to perform the mediation processing for associated destinations.
Services
- Inbound services
- An inbound service describes the web service enablement of a service destination. It provides the configuration of endpoint listeners within a port.
- Outbound services
- An outbound service represents a WSDL-described service.
- WS-Notification services
- A WS-Notification service provides access to service integration bus resources for web services publish and subscribe clients.
- Reliable messaging state
- Use this page to view and manage the WS-ReliableMessaging runtime state.
Additional Properties
- Custom properties
- Arbitrary name-value pairs of data, where the name is a property key and the value is a string value that can be used to set internal system configuration properties. Defining a new property enables you to configure a setting beyond that which is available in the administrative console.
- Web service gateway instances
- A web services gateway allows us to configure specific endpoint listeners and deploy gateway and proxy services to those listeners.
- Security
- Security of the service integration bus can be managed from here.
Local Topology tab
Topology properties for this object. These properties detail how this object relates to other objects in the system topology.
Related tasks
Related information:
Reference topic