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Special events such as BFCM (Black Friday / Cyber Monday).

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  • Hi Gustavo, welcome to DevOps SE. It's going to be a little hard to answer your question as it is; is there any further information you can provide to help us understand what you're trying to achieve? See devops.stackexchange.com/help/how-to-ask for some tips; in particular, knowing what you've come up with so far will help us more specifically hone in on what you're after.
    – Tim Malone
    Mar 24, 2019 at 6:52
  • Hi Tim, thanks for the reference. I'm trying to establish how SREs in other companies (other than mine/Google) approach things such as cloud.google.com/blog/products/management-tools/…. Mar 25, 2019 at 4:05

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it sounds as though the concept of "burst limits" may apply here. If high reliability is needed during foreseen special events of a generally similar duration, it probably is also needed during emerging events too. I suggest broad timescale SLOs (e.g. 99.9% successful responses per month) plus sliding SLOs based on demand, or fixed-limit SLOs instead of rates. An example might be, 99.95% successful responses at 1000qps, 99.99% success at 5000qps. Or, 99.9% successful responses, and no more than 5 failures per second regardless of load.

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