Segmented messages

A message can be segmented by WebSphere MQ if it is too large for one transmission. The application that sends the message can also segment the message.

All WebSphere MQ input connectors aggregates segmented messages before the messages are passed on to StreamServer. This means StreamServer will treat all incoming messages as un-segmented regardless of the number of segments that WebSphere MQ used while transmitting the message.

WebSphere MQ Queue output connectors may segment messages. Whether messages are segmented depends on the data size and on how data is produced. The receiving application at the other end of WebSphere MQ must therefore be able to handle segmented messages.

WebSphere MQ Topic output connectors cannot segment messages. This means there is an upper limit of the size of the messages delivered from this type of connector. See the IBM WebSphere MQ documentation for information about the limit that applies to your platform.