A Question about some of Oracle hidden parameters

Dear Sir,

Can you please explain me the purpose and usage of following Oracle Parameters.

(1).  _first_spare_parameter
(2). _third_spare_parameter
(3). _fourth_spare_parameter

Thank You in advance.
Pradeep.
Pradeep SiriwardanaSystems EngineerAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

BajwaCommented:
http://apps.cocreate.com/downloads/EU-OSM/software/oracle/CPU-Jan-2010/10.2.0.4/win64/README.html


_first_spare_parameter is used by bug 6904068 in this bundle patch.
This parameter is not a simple on/off switch and it can take any numeric value. This fix should really not be used/turned on by customers who don't need it

_third_spare_parameter is used by bug 7452373 in this bundle patch.
This can be set to 100 in init.ora if there is a regression in "log file sync" after applying the patch.

_fourth_spare_parameter is used by bug 6661393. DBA may like to set _fourth_spare_parameter in init.ora
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Oracle Database

From novice to tech pro — start learning today.