Email Classification
A deep-dive in how we built an eventually-consistent data model to predict Slack Connect invites.
#infrastructure
Migrating Millions of Concurrent Websockets to Envoy
Slack has a global customer base, with millions of simultaneously connected users at peak times. Most of the communication between users involves send…
Slack’s Outage on January 4th 2021
Slack’s Outage on January 4th 2021
Scaling Datastores at Slack with Vitess
From the very beginning of Slack, MySQL was used as the storage engine for all our data. Slack operated MySQL servers in an active-active configuratio…
Building the Next Evolution of Cloud Networks at Slack
At Slack, we’ve gone through an evolution of our AWS infrastructure from the early days of running a few hand-built EC2 instances, all the way to prov…
Development Environments at Slack
How Slack’s development environments have evolved over time.
Deploys at Slack
Deploys require a careful balance of speed and reliability.