Interesting. SQL*Net trace level 16 dumps a LOT of stuff to disk. It's possible that the combination of the SQL*Net trace writes and the exp writes are killing your I/O. When the export runs remotely, the SQL*Net trace writes still happen, but the export writes are on another host..... It's worth commenting that stuff out of youe sqlnet.ora. Also, if this is at all a busy database, you may want to clean out /oracle_rdbms/app/oracle/product/8.1.7/network/trace which probably has lots of useless *.trc files in it. I'd comment those lines from sqlnet.ora and try re-running the exp. -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." -----Original Message----- From: Smith, Ron [mailto:rlsmith@xxxxxxx] Sent: Tuesday, January 31, 2006 4:55 PM To: M Rafiq; Bobak, Mark; tanel.poder.003@xxxxxxx; oracle-l@xxxxxxxxxxxxx Subject: RE: Slow Export 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 Important Notice! If you are not the intended recipient of this e-mail message, any use, distribution or copying of the message is prohibited. Please let me know immediately by return e-mail if you have received this message by mistake, then delete the e-mail message. Thank you.
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