[rt-users] Oracle sequences in Tickets table being skipped

Robert Blackwell rdblackw at robertblackwell.com
Mon Jan 9 13:11:26 EST 2006



On Mon, 9 Jan 2006, Stephen Turner wrote:

> At Monday 1/9/2006 12:52 PM, Nathan, Ahalya wrote:
>
> >Hi all,
> >
> >We are using RT 3.4.4, fastcgi and Oracle in our production environment.
> >The problem that we are facing right now is that ticket creation is
> >created in skipped sequences. I checked up the TICKETS.SEQUENCE script and
> >found that there is a cache option=20 being provided. I did check up on
> >the internet and found this website:
> >http://www.arikaplan.com/oracle/ari82599.html , which says that :
> >
> >Applications which use Oracle sequences which have the CACHE option
> >enabled will often 'skip' values.
> >
> >Did anyone have this problem of skipping oracle sequences? If yes, how did
> >you solve it? It would be really helpful if some one could give me tips
> >how to go about this.
>
> The article you point to seems to do a pretty good job explaining why this
> happens and how to minimize the effect. What was it you needed to know that
> the article didn't cover? Also, I'm wondering why this is a problem?
>
> Steve
>
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Think long and hard about not using an Oracle Sequence.  You really must
ask yourself if the gaps are a real problem.



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