障害対応の振り返り

Incident Postmortem: performance

N2advanced~5 min read
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On Tuesday afternoon, a large-scale failure occurred in the production environment. The cause was a configuration mistake related to performance, and the service was down for about two hours.

Immediately after the failure, the team in charge began responding. After identifying the scope of impact, they restored the configuration to its previous state and recovered the service.

In the retrospective meeting, the cause was analyzed as a process problem, without blaming individuals. It was pointed out that the review step had become a formality and that the gap between the test and production environments was large.

Rather than hiding failures, we turn them into organizational learning. I felt once again that this culture is precisely the foundation that supports system reliability.

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