Configuring multi-instance queue manager connections with WebSphere MQ messaging provider custom properties

You can use WebSphere® Application Server custom properties to configure connections to a multi-instance queue manager and to configure the automatic client reconnect feature introduced in WebSphere MQ Version 7.0.1.

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This task explains how to use custom properties in WebSphere Application Server to define the multi-instance queue manager and automatic client reconnect WebSphere MQ properties.
Multi-instance queue managers

You can use multi-instance queue managers to configure multiple instances of the same queue manager on two or more computers. The multi-instance queue manager facility enables you to configure highly available messaging systems based on WebSphere MQ without requiring a hardware cluster technology such as High Availability Cluster Multi-Processing (HACMP).

When multiple instances of a multi-instance queue manager are started, one instance of the queue manager becomes the active instance, and the remaining instances of the queue manager become standby instances. If the active instance fails, a standby instance running on a different computer automatically takes over.

The WebSphere MQ messaging provider in WebSphere Application Server Version 7.0 Fix Pack 13 and later can connect to a multi-instance queue manager. To make use of this facility, you must specify WebSphere MQ messaging provider connection factory or activation specification custom properties.

Automatic client reconnect
Automatic client reconnect enables a WebSphere MQ client to automatically reconnect to a queue manager when an existing connection fails due to either a network or queue manager failure. Automatic client reconnect can be used in thin and managed clients by configuring it in custom properties.
Notes:
  • Automatic client reconnect can be used in the client container only. It is not supported within application server processes.
  • Automatic client reconnect cannot be configured on WebSphere MQ messaging provider activation specifications.
For more information on automatic client reconnect, see the WebSphere MQ information center.

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Last updatedLast updated: Feb 5, 2014 9:49:51 PM CST
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