Re: Shared pool wait for library cache pin

Hi Cherie,

The version_count should be irrelevant of the number of users you have. I doubt this is a shared memory leak, it sounds like simple latch conetention based on the number of versions you have of certain queries. If flushing your shared pool resets the version count for that query, then that is a good workaround. If not, a bounce will clearly take care of it. How fast are your version count/invalidations growing?

George

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Thursday, January 03, 2002 8:40 AM

>
> George,
>
> Not particularly based on the number of users that we have.
>
> See my other reply to Jared for follow-up.
>
> Cherie
>
>
>
> "George
> Schlossnagle" To: Multiple recipients of
list ORACLE-L <ORACLE-L_at_fatcity.com>
> <schlossnagle_at_py cc:
> thian.com> Subject: Re: Shared pool
wait for library cache pin
> Sent by:
> root_at_fatcity.com
>
>
> 01/02/02 02:41
> PM
> Please respond
> to ORACLE-L
>
>
>
>
>
>
> Do any of your queries have a high version_count (visible through
> v$sqlarea)?
>
> George
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Wednesday, January 02, 2002 3:20 PM
>
>
> >
> > We are seeing a lot of shared pool waits (for libary cache pin) on
> > our 8.1.5 web-based application. We are seeing this via Precise/Indepth
> > SQL monitoring tool.
> >
> > I haven't been able to find much documentation on shared pool waits or
> > library cache pins.
> >
> > Can anyone tell me what might be causing this problem?
> >
> > Thanks,
> >
> > Cherie
> >
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > --
> > Author:
> > INET: Cherie_Machler_at_gelco.com
> >
> > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> > San Diego, California -- Public Internet access / Mailing Lists
> > --------------------------------------------------------------------
> > To REMOVE yourself from this mailing list, send an E-Mail message
> > to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> > the message BODY, include a line containing: UNSUB ORACLE-L
> > (or the name of mailing list you want to be removed from). You may
> > also send the HELP command for other information (like subscribing).
> >
> >
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: George Schlossnagle
> INET: schlossnagle_at_pythian.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).
>
>
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author:
> INET: Cherie_Machler_at_gelco.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).
>
>

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: George Schlossnagle
  INET: george_at_omniti.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).