My First Paying Customer Failed 4 Times: Quality Is Not a Final Check
A 0.3-second disagreement between two sources of truth made my first paying customer fail four times. The browser preview stored the project duratio…
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The Day I Broke Production Because of an Icon
I'm a big fan of aviation, and one lesson from aviation safety has always stuck with me: accidents rarely happen because of a single mistake. Instea…
The Fire That Reached the Backups: The OVHcloud Strasbourg Data-Centre Fire, 2021
Tales from the Bare Metal — Episode 05 In the early hours of 10 March 2021, a fire began in a power room in Strasbourg. By morning an entire data ce…
I got tired of writing post-mortems — so I built RCAi for SREs
I'm an SRE at Sony Interactive Entertainment. After a week where my teammate had four incidents (and four RCAs), I built something for the blank-pag…
Баги, которые нас воспитали: инженерные истории с Go Loto
Каждый разработчик помнит тот самый момент, когда система, которая только что работала идеально, вдруг начинает вести себя так, будто сошла с ума. К…
Postmortem: A Corrupted Loki 2.10 Log Store Caused 3 Days of Lost Debug Data
Postmortem: A Corrupted Loki 2.10 Log Store Caused 3 Days of Lost Debug Data Overview On October 12, 2024, at 09:15 UTC, our observability team dete…
The Postmortem of a 20-Minute Kafka 3.8 Outage That Delayed 1M Order Messages
On October 12, 2024, a misconfigured Kafka 3.8 broker idempotent write setting caused a 20-minute total outage that delayed 1,047,892 order messages…