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Home -> Community -> Mailing Lists -> Oracle-L -> RE: login delay with 9.2.0.5
"Now sqlplus logins can take as long as 30 seconds and we're seeing
performance degradation pretty much across the board."
Matt, you seem to be saying 2 different things. Logins are extremely slow AND performance is slow across the board. So it's not just connecting to the DB?
A few more questions, what does a login take going through the
listener?
Did anything else change? Did you redo your stats? Is it the same method?
Are you collecting CPU stats? Do you have system triggers?
What are initora differences?
Have you checked your high volume or noticeably slow plans versus 8.1.7?
Larry
-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Wolfson Larry -
lwolfs
Sent: Thursday, July 22, 2004 5:42 PM
To: 'oracle-l_at_freelists.org'
Subject: RE: login delay with 9.2.0.5
Hi, Guys, I was wondering if you checked the listener log anyway just to
rule that out?
Also, did anyone change your glogin.sql file and is there a local login.sql
file that does anything unusual?=20
You don't have multiple tnsnames files, do you?
Is this the only instance on the server? If not, are they all 9.2 and do they all demonstrate the same delay?
You could try tracing sqlplus with a ".sqlnet.ora" file in your home directory. It'll only trace activity you initiate.
And I agree with Tanel, "truss" is very revealing.
Larry Wolfson
-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Tanel P=F5der
Sent: Thursday, July 22, 2004 4:57 PM
To: oracle-l_at_freelists.org
Subject: Re: login delay with 9.2.0.5
Hi!
If you're talking about bequeath connections, then truss might help you to see where the most time is spent (with bequeath connection you can even set truss to trace the spawned oracle server process as well).
Is it problematic only with local sqlplus connections or everything else as well?
One wild guess: does "session allocation" latch have any misses/sleeps?
Tanel.
> The listener log file does not come into play, as these=3D20
> are local connections on the DB server.
>
>
> ----
> Matt Adams - GE Appliances - matt.adams_at_appl.ge.com
> That's what's cool about working with computers.=3D20
> They don't argue, they remember everything and they=3D20
> don't drink all your beer. - Paul Leary, 1991
>
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