I have multiple durable subscribers subscribed to a topic? How many messages can the topic hold? What is the maximum number of messages it can hold?
I am using KahaDB as persistence adapter. I am assuming it depends on the amount of memory that KahaDB has .Is that right?
Yes. It depends on the amount of memory available to KahaDB as well as the size of each message.
ActiveMQ has a strategy to page down exceeding memory to disk, so that available Java heap won't be a limit. However, paging message has performance implications so every scenario has to be tested.
Read up on message cursors for details
