What does it mean "cache id 13" ? Regards,
Waleed -----Original Message----- Sent: Friday, December 20, 2002 2:29 PM To: Multiple recipients of list ORACLE-L If the wait times on the latch were significant, I think I'd check that the inserts were high volume inserts into tables with a very small extent sizes and lots of indexes, also with very small extents. I wouldn't have thought it was anything to do with sequences. Regards Jonathan Lewis http://www.jlcomp.demon.co.uk Coming soon a new one-day tutorial: Cost Based Optimisation (see http://www.jlcomp.demon.co.uk/tutorial.html ) Next Seminar dates: (see http://www.jlcomp.demon.co.uk/seminar.html ) ____England______January 21/23 The Co-operative Oracle Users' FAQ http://www.jlcomp.demon.co.uk/faq/ind_faq.html -----Original Message----- To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> Date: 20 December 2002 16:56 >We are continually seeing sessions hanging on row cache locks, which in >turn appear to be on dc_segments: > > SID EVENT P1TEXT P1 P2TEXT P2 P3TEXT P3 >----- ----------------- ---------- -- -------- -- --------- ---- > 29 row cache lock cache id 13 mode 0 request 5 > 105 row cache lock cache id 13 mode 0 request 5 > >The offending SQL statement is an INSERT of the following form: > >INSERT INTO TABLE (A,B,C,D...) VALUES (:b1, :b2, :b3, SEQUENCE.NEXTVAL,..) > >The sequence in question has it's cache value set to the default of 20. > >The developers keep insisting that it's a shared pool issue. I've >researched Metalink and not come up with a whole lot. I've ran >statspack and it has rendered advice with respect to the fact that a lot >of new sequence values are being acquired, therefore the sequence cache size >needs examination. > -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Jonathan Lewis 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.net -- Author: Khedr, Waleed 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).
