If you are running a UNIX variant, then the Oracle server process which was writing to the trace file probably still had a "file handle" open on it. On some platforms, you can use the "fuser" command to verify this...
So, when you re-initiated tracing, it was still trying to use the existing file handle. If you performed "mv" on the file within the same file-system, then the newly-named file should have received the new output. If you "cp"d the file then deleted the original or performed "mv" across file-systems, then the file actually still exists (i.e. still occupies disk blocks) but the i-node has been blown away, so you cannot access the data... ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Tuesday, October 08, 2002 12:03 PM > Hello, > > I successfully traced a long running session by using dbms_system.set_ev > procedure, and moved the trace file to somewhere else. However, when > I used the same command to re-trace the same session, I can't see the > trace file again. There was no error message. I tried to use oradebug > and dbms_system.set_sql_trace_in_session to trace the same session. No > matter what method I used, I still can't see the trace file. Then, I > tried to trace other sessions using all available methods, but all > failed. Even though there was no error message, I can't see trace files. > > Can someone tell me what is wrong and how can I re-enable the > sql trace? > > Tom > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Xie, Tom > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tim Gorman INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
