I have a few questions that I couldn’t find an answer for in the documentation nor somewhere online:
Some background information:
- We are not going to use the new ddata mode just yet, we’ll keep the default persistence mode
- Downtime is not much of an issue
- Do you need to make sure that the Kafka bus is empty before doing an upgrade?
1a. If so, what is the recommended strategy for this to happen?
1b. If not, what will happen when doing a rolling upgrade when some nodes are still running 1.3 and some are already on 1.4? Will all the events still be able to be processed correctly?
Thank you in advance!