On Sat, 29 Jun 2002 13:59:36 +0800, Ben Kloosterman
<[EMAIL PROTECTED]> wrote:

>Another solution is after the DB has been updated - update each cache and
>ensure readers of those items are  locked  until the entire transaction
>update has finished.  at least that way you see all the transaction or none
>of the transaction in the cache. Is this what you meant by OLTP
>synchronizing the cache ?  This lock could be a big performance hit though.

Yes, this is exactly what I meant by OLTP and it's well known performance
costs.

In my case I cant get away with simpler architecture than a distributed
business logic and in the same time availability, recoverabiltiy and
perfomance are selling points, so I have to take into account (which is
eliminate) the potential black-outs from failed cache updates etc.

And probably it's  me, but I hate firing transactions somehow ortogonal to
the normal (production) transaction flow.

Thats why I'm looking for another solution...

stef

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