Hi, Recently I've opened a Stack Overflow question <https://stackoverflow.com/questions/54909315/why-does-checkpointing-impact-latency-so-much> about latency spikes (~500ms) after a checkpoint operation, even though the operation itself was relatively fast (~50ms).
I've come to realize that the cause for the latency was that the job was waiting for the RMQSource to acknowledgeSessionIDs during notifyCheckpointComplete. I've noticed that the Kafka connectors do the equivalent operation (committing offsets) asynchronously, at least from 09 onwards. My question to you is: can you see any reason why does this acknowledgement have to synchronous on RabbitMQ? I believe it should be ok, given that those messages are already reflected in the checkpointed state, but I'm not sure if there are any negatives consequences correctness-wise. Thanks,
