WebSphere Enterprise Service Bus, Version 6.2.0 Operating Systems: AIX, HP-UX, i5/OS, Linux, Solaris, Windows


Troubleshooting WebSphere MQ bindings

You can diagnose and fix faults and failure conditions that occur with WebSphere® MQ bindings.

Primary failure conditions

The primary failure conditions of WebSphere MQ bindings are determined by transactional semantics, by WebSphere MQ configuration, or by reference to existing behavior in other components.
Note: MQ bindings only support CLIENT transport mode.
The primary failure conditions include:

Misusage scenarios: comparison with WebSphere MQ JMS bindings

The WebSphere MQ import and export are principally designed to interoperate with native WebSphere MQ applications and expose the full content of the WebSphere MQ message body to mediations. The WebSphere MQ JMS binding, however, is designed to interoperate with JMS applications deployed against WebSphere MQ, which exposes messages according to the JMS message model.

The following scenarios should be built using the WebSphere MQ JMS binding, not the WebSphere MQ binding:

There are situations in which the WebSphere MQ binding and WebSphere MQ JMS binding might be expected to interoperate. In particular, when you are bridging between J2EE and non-J2EE WebSphere MQ applications, use a WebSphere MQ export and WebSphere MQ JMS import (or vice versa) in conjunction with appropriate data bindings or mediation modules (or both).

Undelivered messages

If WebSphere MQ cannot deliver a message to its intended destination (because of configuration errors, for example), it sends the messages instead to a nominated dead-letter queue.

In doing so, it adds a dead-letter header to the start of the message body. This header contains the failure reasons, the original destination, and other information.


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Timestamp icon Last updated: 21 June 2010


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