Some good points here too. IMHO it's a huge waste having to always be re-inserting your stuff constantly. I believe batching with ack's is the best option for

Some good points here too. IMHO it's a huge waste having to always be re-inserting your stuff constantly. I believe batching with ack's is the best option for reliably sync'ing data between two systems with good performance. I know a few people that work at various companies doing events and IoT where they can't drop events and they almost always end up doing batches(or micro batches, whatever you want to call it).. Would be nice if ES offered something along these lines.