Fri Feb 18 15:11:50 PST 2005
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El Viernes, 18 de Febrero de 2005 13:00, Jan Wieck escribi?:
> On 2/18/2005 4:10 AM, ?ncor Gonz?lez Sosa wrote:
> > I mean, Table1 in Host1 is a master of Table1 in Host2 and Table1 in
> > Host2 is a master of Table1 in Host1. Of course, there is not conflict
> > resolution at all but, at least, there are not infinite loops of updates
> > (if unnecessary updates are skipped) unless when a same record is updated
> > in both databases "simultaneously". In fact, it's not a real multimaster
> > system because there are a lot of situations that must be explicitly
> > avoided by the applications using the databases but...
> >
> > Would it work? Would it explode?
>
> I think it could have some very "funny" side effects. Suppose node1
> updates a value to A and node 2 does simultaneously update it to B. Now
> both replicate their changes so node1 ends up with B and node2 ends up
> with A. I want to see the faces of the users ;-)
In fact, I suposse this situation would cause a infinite loop. After this
change, the A->B change of node2 would be replicated in node1 and the B->A
change in node1 would be replicated in node1 and start again and again and
again...
Those are the reasons for which I said that the applications should explicitly
avoid a lot of conflict situations. But, aside those conflict conditions...
would it work? There is another drawback aside the lack of conflict
resolution?
> Jan
Greetings
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?ncor Gonz?lez Sosa /'\_ _/`\
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