If you're planning on doing stream processing (Kafka, RabbitMQ, Pulsar) and not considering Apache Iggy, you're missing out.

Sub-millisecond (i.e. microsecond) writes. Multi-language SDKs. Millions of messages processed per second per core. Multi-transport (QUIC, HTTP, TCP). Lots of cool features (dedup, ttl, consumer groups).

iggy.apache.org/blogs/2025/02/

Plus they have a cute doggo as a logo. What's not to like?

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