Re: Migrating to Oracle9i RAC - New bie questions

Prem K Mehrotra wrote:

> I have a third part application, I cannot make any code
> change sin the application. Vendor's application will run on
> Oracle9i.I,however, want to use Oracle9i RAC.
>
> Are there any application changes required in going fromOracle9i to
> Oracle9i RAC. I rememebr with Oracleparallelservers there used to be
> some issues with Oracle sequences.I can live with gaps in
> sequences,but are there any other issues related to sequences.
>
> I would thinkgoing fromOracle9i toOracle9i RAC shoudlnot have any issues
> with application,but just want to ame sure.
>
>
> Thanks,
>
> Prem

No changes are required ... but ... and it a very large ... BUT ... the application must be well written and capable of scaling on an SMP box too.

RAC has the ability to perform what I call the spotlight effect. It shines a very bright light on bad designs and bad coding practices. And does so by slowing to a crawl.

I would never buy an application for RAC without first testing it in a RAC environment and having the vendor guarantee, IN WRITING, that they will take it back, no questions asked, if it does not meet your needs.

-- 
Daniel Morgan
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http://www.outreach.washington.edu/ext/certificates/aoa/aoa_crs.asp
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