Scaling Slack’s Job Queue – Several People Are CodingRobustly Handling Billions of Tasks in Milliseconds Using Kafka and Redis Slack uses a job queue system for business logic that is too time-consuming to run in the context of a web request. This system is a critical component of our architecture, used for every Slack message post, push notification, URL unfurl, calendar reminder, and billing calculation. On our busiest days, the system processes o
