Re: login delay with 9.2.0.5
- From: Paul Baumgartel <treegarden@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 22 Jul 2004 11:53:10 -0700 (PDT)
You can't trace the whole instance, but you can create a login trigger
that starts tracing using DBMS_SUPPORT (note: this package is not
installed by default; log in as SYS and run
$ORACLE_HOME/rdbms/admin/dbmssupp.sql, then grant execute on
DBMS_SUPPORT either to PUBLIC or one or more individual users first):
create or replace trigger trace_all
after logon on schema
begin
DBMS_SUPPORT.START_TRACE(waits=>true,binds=>false);
end;
/
Do this for one or two users, then TKPROF (with WAITS=YES) the trace
files and inspect the output. Then disable the trigger. I do this all
the time and it works very well.
Of course, if the delay occurs before the trigger fires, this won't
help you!
PB
--- "Adams, Matthew (GE Consumer & Industrial)" <MATT.ADAMS@xxxxxx>
wrote:
> This last weekend we upgraded an Oracle Apps=20
> instance from 8.1.7 to 9.2.0.5.0.
>
> Now sqlplus logins can take as long as 30 seconds=20
> and we're seeing peformance degradation pretty much=20
> across the board.
>
> It's a sun 6800 with 20 Cpus and 40G of ram. =20
> Machine does not appear to be bottlenecked on hardware
> at any point. Don't see any obvious problems anywhere.
>
> I can't set event 10046 for the whole instance, but I would=20
> very much like to know why logins are taking so long.
>
> Any suggestions?
>
> Matt
>
> ----
> Matt Adams - GE Appliances - matt.adams@xxxxxxxxxxx
> That's what's cool about working with computers.=20
> They don't argue, they remember everything and they=20
> don't drink all your beer. - Paul Leary, 1991
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