On Tue, 23 Apr 2002 12:28:23 -0400, David Boyes <[EMAIL PROTECTED]> wrote:
>> > The record for us is about 9 months for a single Linux image. Average >> > is about 3-4 months between reboots, depending on what's running in >> > them -- things that suck up lots of memory like Websphere tend to >> > shorten the lifespan of the machine by fragmenting storage. Machines >> > that get a lot of interactive use tend to collect a few zombies after >> > a while, so reboots become a reasonably good idea after a while. >> >> I have to say that I'm a little surprised at that recommendation. > >No, THIS IS NOT A RECOMMENDATION. This is a descriptive observation. > >The failures we see appear to be memory related, and there are some cases >where if you cut interactive users loose and let them do their stuff, they >create random garbage, et al. This is pretty standard stuff for lots of >interactive processing sites -- clear the decks periodically even if it's >not sick. > >> Seems like I've heard lots of tales of people with Linux up >> much longer than 9 months... doing web services, etc... do you >> think your 9 month figure is a function of the 390 version >> of Linux, or Linux in general? > >No, I think its a function of how we make upgrade decisions and/or ops >policy. I suspect that you could go longer, but I wanted to share a data >point. The very long uptime reports tend to be for fixed workload environments... like a router that runs for years. john
