[ZODB-Dev] Replicated ZEO

[Godefroid Chapelle]

At 19:15 9/04/2002, Toby Dickenson wrote:
>On Tue, 09 Apr 2002 17:02:49 +0200, Godefroid Chapelle
><gotcha@swing.be> wrote:
>
> >If I get it well, ZSyncer can be configured for automatic, complete and
> >continuous replication or must it be configured a folder (or an object at a
> >time ?
>
>How *continuous* does it need to be?
>
>Such that no transaction completes before the data is safely written
>to hard storage on more than one node? You need something like
>ReplicateFileStorage, or StandbyStorage

This is too much in my customer's case.

>Such that no node is more than x minutes out of date? ZSyncer would
>work. I prefer the low-tech approach and just rsync the underlying
>files.

I do know the concepts underlying rsync but do not know if it can work on 
data.fs while zope is accessing it.
If not, is rsync efficient enough to be able to cut zope server during 
synchronisation without affecting too much the site access ?


>(Note, I havent looked at ZSyncer in detail)
>
>Toby Dickenson
>tdickenson@geminidataloggers.com

Thanks
--

Godefroid Chapelle

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