Re: sql trace - forward attribution

From: Tanel Poder <tanel.poder.003_at_mail.ee>
Date: Tue, 06 Jan 2004 11:29:25 -0800
Message-ID: <F001.005DBDE2.20040106112925@fatcity.com>

Btw, reading through a 10046/12 trace from instance startup & database opening can reveal really lots of interesting information.... :)

Tanel.

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Tuesday, January 06, 2004 8:24 PM

> Thanks, Raj, but I don't think so. The whole reason
> behind enabling a db-wide trace was to capture
> everything sql trace is instrumented to capture. As
> you know sql_trace is a static parameter, so I got
> everything "from the begining", including:
>
> PARSING IN CURSOR #1
> ALTER DATABASE MOUNT
> ..
> PARSING IN CURSOR #1
> ALTER DATABASE OPEN
>
> PARSING IN CURSOR #2
> create table bootstrap$ ( line#
>
> PARSING IN CURSOR #2
> CREATE ROLLBACK SEGMENT SYSTEM
>
> .. but not the cursor #0
>
> (Interestingly "alter database mount" went to one
> trace file, while "alter database open" and the rest
> to another - so to mount a DB Oracle spawns a
> different process on your behalf and than passes
> control back to your foreground to open it?)
>
>
> --- "Jamadagni, Rajendra"
> <Rajendra.Jamadagni_at_espn.com> wrote: > you may not be
> seeing parse etc entries for cursor
> > #0 merely because maybe by design, cursor#0 gets
> > invoked before trace gets activated. This way, you
> > will never get cursor #0 info.
> >
> > You can tell, I am guessing but to get similar
> > experience, start trace in an already active session
> > and you'll see.
> > Raj
> >
> --------------------------------------------------------------------------

---

> > Rajendra dot Jamadagni at nospamespn dot com
> > All Views expressed in this email are strictly
> > personal.
> > QOTD: Any clod can have facts, having an opinion is
> > an art !
> >
> >
> > -----Original Message-----
> > Sent: Tuesday, January 06, 2004 12:00 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > Thanks to Anjo, Cary, Tanel, and everybody who
> > provided feedback back channel.
> >
> > Just to rule out the possibility of a collection
> > error
> > (somebody suggested that cursor #0 is simply not
> > captured) I bounced the DB today, enabled a DB-wide
> > trace ... and as expected
> >
> > grep -i "cursor #0" *
> >
> > returned nothing, while "wait #0" gives plenty. So
> > it
> > is not a trace activation/termination error.
> >
> > --
> > Please see the official ORACLE-L FAQ:
> > http://www.orafaq.net
> > --
> > Author: Jamadagni, Rajendra
> > INET: Rajendra.Jamadagni_at_espn.com
> >
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Tanel Poder
  INET: tanel.poder.003_at_mail.ee

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Received on Tue Jan 06 2004 - 13:29:25 CST