I'd say a lot of details are missing that might make this article a lot more informative:

- how does it work in multi-region environment?

- trillion messages per hour / day / week?

- what's used as a schema registry?

- how do they handle "exactly once" delivery for emails sending?

- do they have any patches on top of the mainstream version?

- is replication used at all?

- how many boxes are used and what configurations do they find optimal?

Etc etc

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How should we read trillion message count? Is it a rate of message ingestion? Or is it total messages that are stored in Kafka?

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Very informative. Thank you so much for sharing this.

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Very informative article!

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Awesome explanation man !!

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Great architecture sharing

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