Re: [EXTERNAL] Re: enq: TS - contention
- From: Mladen Gogala <gogala.mladen@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Fri, 10 Nov 2023 14:52:55 -0500
On 11/10/23 13:46, Hameed Amir (amir.hameed) wrote:
Hi Jonathan,
Thank you for the explanation. I looked through DBA_HIST views for
information on job A for periods when it finished successfully, and I
found the following statement in all those periods:
DELETE FROM AR_AUTOREM_INTERIM WHERE BATCH_ID = :B1
It is a standard Oracle EBS table. It is partitioned and has no index
on it.
Can you please show me how to convert P2 into TS name below?
Hi Amir!
The reference note for the event is the following:
------------------------------------------------------------------------
LOCK: TS "Temporary Segment (also TableSpace)" Reference Note (Doc ID
34665.1)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Lock: TS
"Temporary Segment (also TableSpace)"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This lock has
different arguments in Oracle7 and Oracle8. Oracle8 and higher
~~~~~~~~~~~~~~~ The TS lock either protects a temporary segment or a
bitmap tablespace. The temporary segment may be either for true TEMP
usage or may be a segment which was once, or will become, a real
segment. Eg: DROP table converts the TABLE segment to a TEMP segment
which is then cleaned up. TS-id1-id2 arguments ~~~~~~~~~~~~~~~~~~~~ Id1
Id2 Use ~~~ ~~~ ~~~ Tablespace id Relative DBA TS lock protecting the
segment (TS$.TS#) in this tablespace at this RDBA. (See <SupTool:ODBA>
to convert an RDBA to a File/Block combination) Tablespace id Instance
ID If ID2 is small it is an instance ID This is used for bitmapped The
reference note doesn't explain P1/2/3, it directs you to V$LOCK. You
should use ID1 as tablespace ID. Regards --
Mladen Gogala
Database Consultant
Tel: (347) 321-1217
https://dbwhisperer.wordpress.com
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