Hey everyone, it's your friendly neighborhood old man dev here. I'm 38, working as an engineer during the week, and building AI algo trading bots on the weekends.
Sometimes, when I'm building personal projects like these bots, I'll notice something like, "Hmm, this thing hasn't been spitting out logs lately." That usually means it's silently halted. And that's exactly what happened this time.
The task was simple: regularly fetch data for about 250 tickers from a certain market API. It should have been straightforward. But the logs showed it was stopping midway every single time. No completion logs whatsoever.
My first thought was a momentary network interruption or a temporary API server glitch. But after multiple retries, it kept failing at the same spot. A deeper dive revealed a much simpler, more fundamental design flaw.
The Root Cause: A Marathon Designed to Fail
