Re: Post/Wait Initialization Failed when running install script

In article <7f55mc$q4d$1_at_nnrp1.dejanews.com>,   Eduardo Pimenta <epimenta_at_my-dejanews.com> wrote:
> Answers permeating article
>
> In article <7f3kko$ghc$1_at_nnrp1.dejanews.com>,
> vorpil_at_yahoo.com wrote:
> > I'm wondering if anyone out there has ever seen a message "ORA-27146:
> > Post/wait initialization failed" message when running an Oracle install
> > script.
>
> I seem to remember reading this message while installing Oracle 7.3.2 at
> a SCO machine. Something to do with semaphores or shared memory. Check these
> parameters at your system files against Oracle installing docs.
>
> >
> > I tried running the following under Server Manager after I connected as
> > Internal:
> >
> > startup nomount pfile =
> > /apps/home/oracle/sw1/app/oracle/admin/sundev1/pfile/initsundev1.ora
> >
>
> Another alternative is to alter the use_post_wait_driver parameter,
> from TRUE to FALSE. It will disable semaphores/shared memory. use it to
> check only, though: running without shared memory has a cost in performance.
>
> Hope this helps,
>
> Eduardo Pimenta.
>
> > Where sundev1 is my DB_name.
> >
> > Does anyone know what could be wrong with this?? Thanks.
> >
> > You may reply to me at vorpil_at_yahoo.com if you don't wish to post in this
> > newsgroup.
> > -Howard-
> >
>

It is my understanding that the use of post/wait drivers in place of semaphores results in a 5% overall performance gain to the database. Not all Unix system support the use of post/wait drivers. If you are using OPS then some vendors like Sequent use a different post/wait driver for the lock manager and the database automatically uses these instead of the normal ones without any entry in the init.ora file. -- Mark D. Powell -- The only advice that counts is the advice that you follow so follow your own advice --

-----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own Received on Thu Apr 15 1999 - 12:42:27 CDT