Thanks, Anjo.. Me bad... Not sure why I said 'enqueue latch' :( Yes, it is SQ enqueue.
- Kirti -----Original Message----- Sent: Monday, September 23, 2002 3:03 PM To: Multiple recipients of list ORACLE-L Just want to be picky. It is the SQ enqueue not the latch. There is an SQ enqueue for each sequence. Increasing the cache size will help. Anjo. ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Monday, September 23, 2002 9:14 PM > For incrementing sequence number, Oracle has to use an SQ enqueue latch. To > minimize the need for this latch, you can increase the cache size for the > Sequences. Additionally, you can also consider KEEPing the Sequence number > in Shared pool using dbms_shared_pool.keep() package procedure. > > - Kirti > > -----Original Message----- > Sent: Monday, September 23, 2002 12:44 PM > To: Multiple recipients of list ORACLE-L > > > Hello List, > > I have a need to try an replicate a problem that has occured on our > production > environment. It seems that occassionally our response time dives to the > buttom > of the barrel in regards to our tuxedo application. When this occurs we > have > found that many of the blocked sessions are trying to query a sequence. > > select my.sequence_list.next_value from dual > > Does anyone know a possible cause for a sequence to be locked? > > Does anyone know how to lock a sequence? > > Thanks ahead of time. > > Tim Boles > DBA > Lockheed Martin Information Systems > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: > 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: Deshpande, Kirti > 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: Anjo Kolk 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: Deshpande, Kirti 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).
