This topic describes how to investigate why a topic space on a
service integration bus is full.
About this task
When a topic space becomes full, exceptions will be returned when
you attempt to publish a message to that topic space. The most probable reason
for a topic space filling up is that the publishing application is producing
messages faster than they can be consumed by the subscribing application or
applications. However there could be other causes, such as dormant subscribers
or broken communications links.
Another possible cause is a regular increase
in message traffic, for example at certain times of day. Consider increasing
the high message threshold to overcome this problem.