Has anybody experience with situations that can cause a Cube to switch to polling for other reasons than ports being blocked (i.e. allegedly all proper ports are open, and Cube keeps falling back to polling)?
Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 10th July 2023
When Cube connects to the DMA, Cube will open a random port to which the DMA has to connect to send eventing notification messages. If only Cube is able to connect to the DMA, and the DMA not to Cube, then Cube switches to polling. This happens when ports towards the client are blocked, or when the client is behind NAT, which makes that the DMA isn't able to connect to Cube on the client machine.
Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 10th July 2023