Tracing At Slack: Thinking In Causal Graphs
tl;dr: Suman describes the architecture of Slack's tracing system, which produces ~330M traces and ~8.5B spans per day.
featured in #203
A Terrible, Horrible, No-Good, Very Bad Day At Slack
tl;dr: "This story describes the technical details of the problems that caused the Slack downtime on May 12th, 2020."
featured in #190