Re: OCF(v2).

On Nov 6, 3:53 am, DA Morgan <damor..._at_psoug.org> wrote:
> per.lan..._at_fouredge.se wrote:
> > On Nov 5, 6:32 pm, DA Morgan <damor..._at_psoug.org> wrote:
> >> per.lan..._at_fouredge.se wrote:
> >>> Hi,
> >>> I need some advise from someone who knows alot about OCF and maybe CFs
> >>> in general..
> >>> Suppose you have two independent (A & B) database nodes share a
> >>> database volume on a CF.
> >>> Is it possible to have the CF queue (FIFO) requests (read / write)
> >>> from either node in order to let them be executed in that order?
> >>> Rgds
> >>> /PL
> >> Please define your terms.
>
> >> 1. What version of Oracle?
> >> 2. Are you discussing RAC? If not what are you discussing?
> >> 3. If RAC have you read the concepts and architecture docs?
> >> Which ones?
>
> > Thanks for your reply.
>
> > 10g, two stand alone DBs (not RAC) + proprietary cluster.
>
> >> If you want serialization what you are saying is that if node 1
> >> starts something that will take 15 minutes you want node 2 to
> >> freeze. Does this make sense?
>
> > Well, that's a good to begin with but if that's the starting point we
> > would like to add nifty features such as.
> > i) If a write process has been active for more than x seconds, pass
> > through all read processes in the queue.
> > And with even more intelligence added: ii) Write's could be passed
> > through as well as long as they don't interfere with each other.
>
> > Rgds
>
> > /PL
>
> Two separate 10g instances hitting the same database files without
> the benefit of Oracle clusterware? Have you considered just dropping
> a brick on your foot. Why? My expectation is that you are trying to
> earn pain and will likely get a boatload of it.

((:
Well, it's not easy but if the concept can be proven the idea has alot of potential.

Rgds

/PL Received on Tue Nov 06 2007 - 03:09:28 CST