Possible Incorrect Results from Mapping Broker following Communications Error

Content

Certain versions of the 9.0, 9.2, or 9.5 mapping broker can possibly return incorrect results following a MI_MpinetCommunicationException error. The MI_MpinetCommunicationException error is typically due to either a temporary network problem between the mapping broker and hub, or a hang condition experienced with the hub itself. If the broker recovers from this error and resumes communication with the hub, there exists a remote possibility that mapping request results can become shifted in the communication stream. This shift will result in the previous request's results being returned to the current request. Once this condition is encountered, the broker must be restarted to recover from the shift in the communications stream.

To prevent this problem from occurring, IBM support strongly suggests applying the June 2011 patch for versions 9.2 or 9.5 of the Message Broker Suite. The APAR for the June 2011 patch is JR39158 for version 9.2 and JR39159 for version 9.5.

If you are using the version greater than 9.0.0.253 of the mapping broker, please contact IBM support for a hotfix for this problem.