Episode 4 of 9 · Discord
Request coalescing: how one query serves a million askers
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Request coalescing: how one query serves a million askers. A viral moment does not send a million different questions. It sends the same question a million times. Every one of those clients wants the last fifty messages of the same channel
Based on the board Data Services & Super-Disk.
Covered in Discord - the case study.
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