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2 results for “case study”.

• Silent Failure: How Our Backup Turned Out to Have Never Succeeded
  For months the snapshot system was confident it had "finished" while every upload to R2 failed silently. The cause: an API token with the wrong scope, and a script that never counted failures. The lesson: timer success is not proof of job success.
• Tukuk-OS Bug Retrospective: Four Real Bugs and What They Cost
  A merge script that copied zero documents, a service worker serving yesterday's site, Bing returning decoy results, and a video player nobody could open — four real bugs from this project, written up while the scars are fresh.