IBM WebSphere MQ Server and Queue Manager Limits and Settings

• When using the WebSphere MQ queue manager on UNIX, you must be a member of the mqm group to create and start the MQ queue manager.

• It is essential that the WebSphere MQ Administrator regularly monitor the number of messages in the queue. Message expiration settings should be set to allow for extended storage.

WebSphere MQ is limited in the number of messages that can be sent before a commit is executed, and the number of physical messages that can exist on the queue at any one time. This can result in exception errors when upper limits for these numbers are exceeded. Memory and performance of the specific server may also effect the results.