One identifier generated at the edge and attached to every log line turns an incident into a single query, and the hop most implementations lose is the one…
Forty gigabytes of logs a day and no answer to “is checkout slow”. Metrics, logs and traces answer different questions, and logs were doing all three badly.
The database password was in the repository, then in the image, then in an environment variable readable by anything that could run ps. Where it went next.
The replica was up, accepting connections and serving data from an hour ago. Seconds_Behind_Master reported zero, honestly, and was measuring the wrong thing.
The journal already stores structured records with a unit, a priority and a hostname; the text output is a rendering rather than the data. Following the journal in…