Allow processing requests when the transport is down #400
Description
Describe the suggested improvement
Is your improvement related to a problem? Please describe.
When the transport is not available the Transactional Session mechanism can't sent the control message to ensure dispatching the outbox. This means that the incoming request is rejected due to an exception.
Describe the suggested solution
A solution might be to designate a space (table/collection?) in the outbox database to store the equivalents of control messages. When the transport is down, that space would be used, instead of the transport, to ensure outbox messages are going to be dispatched.
Describe alternatives you've considered
- One alternative is to use polling to dispatch the outbox messages but this would not work in a partitioned database and is very difficult to tune in a scaled-out environment.
- Another alternative, if the store is SQL or PostgreSQL database, is to use DB-based transport on the frontend and Bridge to move messages to the backend transport.
Additional Context
No response