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One machine stopped, and S3, the container registry and every deployment stopped with it for eight hours. Our monitoring caught it in three minutes and told nobody. Here is the full postmortem: why single-machine redundancy was not what we thought it was, the near-miss we nearly caused ourselves, and the pager and hardware watchdog we shipped the same day.
On April 30 2026, our S3 object storage service experienced intermittent disruptions over a six-hour window. A faulty 10 Gigabit network card on a newly added storage server triggered repeated kernel watchdog reboots. Here is what happened, what our diagnosis got wrong on multiple occasions, and what we are changing as a result.
Publisher confirms are the only way to guarantee RabbitMQ received your message. This guide covers how they work, the performance tradeoffs at different batch sizes, and production-ready code examples in Python, Node.js, and PHP.
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