Re: realtime backup

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on 2-18-2009 1:45 PM Scott Silva spake the following:
> on 2-18-2009 1:36 PM Ian Forde spake the following:
>> On Wed, 2009-02-18 at 15:35 -0500, Toby Bluhm wrote:
>>> For a speedy backup, could put the db on LVM. Then your procedure would 
>>> be shutdown/freeze db, make lv snapshot, startup/unfreeze db, 
>>> rsync/backup data, remove snapshot.
>> That's what I'd suggest too, but be warned that performance on that
>> database (if gets to be of any size to be useful) would completely
>> suck... not unlike driving at 90mph and with the ebrake on and
>> constantly up-and-down-shifting...
>>
>> 	-I
> 
> Would a decent alternative be a master/slave, with the dumps being done
> from the slave. That way if the slave bogs down during the dump, it can catch
> up afterwards. The master shouldn't slow down at all, or very minimally as it
> is caching the slave transactions.
> 
One too many "would's"...

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