[vegabook]

I have, thanks for asking. I must admit that I have a very real priority on (soft) real time. Flink appears attractive but I also have a slight bias to non JVM which is where Concord appears interesting. I also just love Concord's "hot" DAG capability. Agreed (I think) though that I must include Spark micro-batching as a potential candidate. Any experience you have on this...I welcome links/tips. As you can probably tell I am at the very initial exploratory stage on stack choice.