It does do that. But it runs at very low priority, so it might take a while. But on the other hand, it starts warning you, first just in the log file, then on

It does do that. But it runs at very low priority, so it might take a while. But on the other hand, it starts warning you, first just in the log file, then on every query you issue way before it actually stops working, so if you're not ignoring warnings in your logs / your client-code, there should be ample time to react. At least, there was for me when I first ran into this a few years ago.