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bluedino
on July 20, 2016
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Stack Overflow Outage Postmortem
Imagine if they had only posted 10,000 or 15,000 characters, and it just slowed the site down. How fast would it have been noticed? Hours? Days?
mason55
on July 20, 2016
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Good monitoring (which I expect the SO guys to have) would have triggered on a spike in 95% or 99% response times so probably almost as quickly
gbrayut
on July 20, 2016
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Actually we average less than 10% CPU on the web tier... so anything over that warrants investigation. Graph of CPU during today's issue at
https://twitter.com/Nick_Craver/status/755793398544601088
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