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Would you mind expanding on some of the operational complexity you ran into with pulsar?

I think pulsar is wonderful, but I haven't had the chance to use it for anything serious / in production yet, so I'm curious what pain points you had.

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I'm guessing that the pain points surrounded having to set up a Zookeeper cluster in conjunction with Pulsar. I think Pulsar has the best model of the various queuing systems at the moment for the routing flexibility of RabbitMQ, the high-throughput of Kafka (topic/partitions), as well as the ability to seamlessly integrate with cold storage (S3/GCS) and to recall messages from cold storage without extra code (unlike Kafka), I just wish that ZK wasn't an additional dependency.

Anyone know of any Pulsar hosting providers?

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