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2018-10-26
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mawning
I like the interaction with the other people best when at meetings, and that is, of course, something you don't get from the videos.
I don’t know much about Kafka. Is that bad?
yeah, it's 512MB of output buffer for each VM - it's not bad at all, kafka is doing great - i was just surprised when i figured out that we are generating ~200MB of output data from routing some individual messages though
I think the JVM was (secretly) designed by the companies that make RAM modules... a very symbiotic relationship... :thinking_face:
it's not the JVM's fault this time @thomas - we generate a routing output of ~10KB per message for each user (it's this large because the resulting websocket messages include all relevant metadata so that client doesn't ever have to do any fetches to display a new message) and if a message is routed to 20K users then you have 200MB of JSON hitting the routing effects topic
For those of you of Kafka persuasion, Jay Kreps of Confluent (the company behind Kafka) is giving a talk on 13th November in London. See: https://www.meetup.com/Apache-Kafka-London/events/255858267/