If you've done your job properly in the first place you have sufficient testing and redundancy in place that the situation you're referring to is pretty much impossible.
If there's ever going to be a situation where something costs $100k/hour if it's offline then you have 5 test servers and 2 or 3 load-balanced production servers so a failure doesn't take you offline, and you've written procedures and processes to handle critical problems long before they happen.
You definitely don't try to hotfix things while the foreman complains. That will make things worse.
If there's ever going to be a situation where something costs $100k/hour if it's offline then you have 5 test servers and 2 or 3 load-balanced production servers so a failure doesn't take you offline, and you've written procedures and processes to handle critical problems long before they happen.
You definitely don't try to hotfix things while the foreman complains. That will make things worse.