On Wed, Dec 16, 2009 at 2:05 PM, Greg Smith <g...@2ndquadrant.com> wrote:
> Michael Clark wrote: > > On Wed, Dec 16, 2009 at 11:25 AM, Greg Smith <g...@2ndquadrant.com> wrote: > >> Florian Weimer wrote: >> >>> I hope that Mac OS X turns off write caches on low battery. >>> >>> >> >> I've never heard of such a thing. The best you can do is try to push the >> system into hibernation instead of going down hard. That *should* clear any >> disk caches as part of the graceful shutdown. But you're relying on a >> relatively fragile system now, once the battery is quite low who knows if >> that will even execute in the window of time you have left. >> >> > And at this point it is not unreasonable to expect the user to perform > some sort of action. Shutdown before the power completely dies, or plug in > the power. > > > Sure, but the point is that if your database will get corrupted if that > doesn't happen, that's a mistake because sooner or later every such portable > system is going to end up there and not get plugged in on time. > Totally agree, not having PG setup properly and expecting the user to not fall into this problem is irresponsible. I was speaking more generally on the OS level. How aggressive should we expect an OS to be in a case like this where some responsibility should lie with the user.
