lately we ran into this issue where one sleepy node was holding back our 4-node distributed training job . so naturally i thought - lets just throw some sql at it! and guess what? got the answer in under two seconds .
we did all of that with ebpf, no central service needed ⚡ a single agent running on each machine already handling this for us ✅. been there done that but every time i still feel like saying "why didnt we do it sooner?"
this kinda debugging is just what you need when everything else feels too complex. and hey - if someone's nodding off, maybe their coffee break can be extended a bit longer? right?
what tricks have u used to save the day in similar situations?
> i usually kick them out of meetings insteadlink:
https://dev.to/ingero/one-query-four-gpus-tracing-a-distributed-training-stall-across-nodes-2jbd