RE: Slow Export

Hopefully after commenting these entries in sqlnet.ora file your problem will be resolved.

I had issues with tnsping and found missing brackets or brakets were not placed properly. It was a Linux server with 9206 database. It was just taking forever and consuming all memory. After running trace we observed this issue.

Regards
Rafiq




From: "Smith, Ron" <rlsmith@xxxxxxx>
To: "M Rafiq" <rafiq9857@xxxxxxxxxxx>,<Mark.Bobak@xxxxxxxxxxxxxxx>,<tanel.poder.003@xxxxxxx>,<oracle-l@xxxxxxxxxxxxx>
Subject: RE: Slow Export
Date: Tue, 31 Jan 2006 15:54:40 -0600

Found this in the SQLNET.ORA file. Added to try to diagnose another problem.
About the time the exports started running slow.

TRACE_LEVEL_CLIENT=16
TRACE_DIRECTORY_CLIENT=/oracle_rdbms/app/oracle/product/8.1.7/network/trace
TRACE_TIMESTAMP_CLIENT = ON

TNSPING works well.

Ron




-----Original Message-----
From: M Rafiq [mailto:rafiq9857@xxxxxxxxxxx]
Sent: Tuesday, January 31, 2006 3:43 PM
To: Smith, Ron; Mark.Bobak@xxxxxxxxxxxxxxx; tanel.poder.003@xxxxxxx; oracle-l@xxxxxxxxxxxxx
Subject: RE: Slow Export


Ron,
Is there any recent change to your local  tnsnames.ora file. May be any
bracket is missing or format error. How about your tnsping to that database
work from local server?

Regards
Rafiq




From: "Smith, Ron" <rlsmith@xxxxxxx>
Reply-To: rlsmith@xxxxxxx
To: "Bobak, Mark" <Mark.Bobak@xxxxxxxxxxxxxxx>,<tanel.poder.003@xxxxxxx>,
"ORACLE-L" <oracle-l@xxxxxxxxxxxxx>
Subject: RE: Slow Export
Date: Tue, 31 Jan 2006 15:26:19 -0600

No, I found I can run truss.  Just don't know how since we usually can't run
those type utilities.
The only waits are SQL*NET waits, to and from the client.  About 350 but no
time associated with the wait.
The export is local.  If done remotely the export runs much faster, back to
normal times.

Thanks!
Ron

        -----Original Message-----
        From: Bobak, Mark [mailto:Mark.Bobak@xxxxxxxxxxxxxxx]
        Sent: Tuesday, January 31, 2006 3:15 PM
        To: Smith, Ron; tanel.poder.003@xxxxxxx; ORACLE-L
        Subject: RE: Slow Export


    Hmm....so, they explicitly deperm access to the truss binary?  On most 
Sun
servers, it's in /usr/bin, and you should not need root permission to truss
an oracle owned process.  If you can login as the user who started the
database (presumably oracle), that should be good enough to do the trace.
Unless they really do explicitly deperm the binary.  If that's true, I'd
argue that's a battle you need to fight, in order to do you job well, you
need access to O/S level tools like truss.  (I know, I know, easier said
than done....;-))

        As for the V$SESSION_WAIT output, what do you mean by "looks low"?  Are 
you
seeing waits?  What are they?

        Also, regarding Tanel's last question, are you exporting locally, or 
over
the network?

        -Mark


    --
        Mark J. Bobak
        Senior Oracle Architect
        ProQuest Information & Learning

        "There are 10 types of people in the world:  Those who understand 
binary,
and those who don't."



________________________________

        From: oracle-l-bounce@xxxxxxxxxxxxx 
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of Smith, Ron
        Sent: Tuesday, January 31, 2006 3:55 PM
        To: tanel.poder.003@xxxxxxx; ORACLE-L
        Subject: RE: Slow Export


    I had to restart the export.  Ran 8.5 hours this time.
        V$Session_Wait looks low right now.
        I have never used the Truss command.  Unix admins don't give us access.

                -----Original Message-----
                From: oracle-l-bounce@xxxxxxxxxxxxx 
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of Tanel Põder
                Sent: Tuesday, January 31, 2006 2:45 PM
                To: ORACLE-L
                Subject: Re: Slow Export


            Are you exporting over network or locally in the server?

                V$SESSION_EVENT, V$SESSION_WAIT and truss -c should sufficient 
to reveal
the cause..

                Tanel.


                    ----- Original Message -----
                        From: Smith, Ron <mailto:rlsmith@xxxxxxx>
                        To: tanel.poder.003@xxxxxxx ; ORACLE-L 
<mailto:oracle-l@xxxxxxxxxxxxx>
                        Sent: Tuesday, January 31, 2006 2:36 PM
                        Subject: RE: Slow Export


                    There are several exports in different databases, 
exporting various size
objects.  The thing is, this started about the middle of December.
                        Before that, everything was fine.

                        Ron


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