[gnhlug-announce] SLUG "problem solution" meeting Monday 7/14
7pm at UNH in Morse 301
Bruce Dawson
jbd at codemeta.com
Wed Jul 9 21:21:25 EDT 2003
On Wed, 2003-07-09 at 14:37, Robert Anderson wrote:
> ...
> I'm still open for problems to work on. If you have something you've
> been trying to do and would like to have the groups input, please send
> an email or be ready to explain your problem to the group on Monday.
>...
Well, something I've been struggling with lately is how to plan a site
for upgrading with minimal downtime (i.e. just the time required to
reboot).
One thing that we've looked at is having two computers with identical
configurations - software and hardware, and use LVS (or some equivalent)
to switch the web and mail services to the other system when one goes
down. However, this falls apart rather quickly - databases need to be
duplicated, resync-ing things like log files are a royal pain, ...
I'm mostly wondering how other sites handle this with minimal hardware
and proprietary software investments.
--Bruce
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