What was the biggest mistake you made in your career?

Question

Share your story.

I'll start:

I once rebooted a whole production cluster in Google, while implementing an upgrade. 10,000 servers went down. A few alarm bells went off.

My team was awesome. Everyone chimed in, drained the traffic to the cluster in a couple of seconds, some customers saw a 403 for a few seconds, that was it. We changed processes and procedures and had a good laugh. And I learned my lesson

Viscanzo Smith · Accepted Answer

Go for that type of business which i am not expert for example i run a company of gutachter mainz but main thing is i don't even know how it operate i hire some guys and did work for me. But after a year we didn't earn enough profit because i have no knowledge and people i hire i so beginners in math. So, always step into that business which you properly understand.

Developer X · Answer

I also in production, set wrong port number while an upgrade process. 1/65535 possibility 😅

Shajedul Karim · Answer

ah, the humbling moments that remind us we're human.

early in my journey, i mistook speed for efficiency and overlooked thorough testing for a feature launch.

resulted in unexpected downtime.

taught me two things: value of a strong team backup and the importance of rigorous checks.

these missteps, they shape us, don't they? how have you changed your approach post that incident?

Sebastian Varga · Answer

@shajedulkarim_ Was that in a small company or a big one? How did they react?

Shajedul Karim · Answer

@arviaja mid company, the reaction was calm!

Sebastian Varga · Answer

@newyork so what broke? Everything? Was it noticeable by the customers?

What was the biggest mistake you made in your career?

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