Has anyone else noticed a shortage of available spot instances in the US East region following the recent AWS outage? Even when we manage to launch them, they seem to disappear almost immediately. Is this a widespread issue? I couldn't find any updates on AWS's status page regarding this.
3 Answers
We rely heavily on spot instances in the US East region too. Right after the outage, we switched to on-demand instances for a day to play it safe. However, since Tuesday evening, we've been back to using spot instances without any major problems. I didn't pay much attention to the reclaim timings, but our app restarts really quickly, so it hasn't been a big issue for us.
Just a heads up, priority is given to on-demand instances. When everything goes down and restarts, the on-demand machines are serviced first. Only after that do they allocate the leftover instances to spot, so it makes sense if you're seeing issues after the outage.
Got it! Thanks for the clarification!
RTFM FFs

I appreciate that! We've also switched to on-demand temporarily, but those spot instances still seem to get claimed almost immediately after launching, sometimes within minutes.