Re: cursor: pin S wait on X querying data dictionary
- From: GG <grzegorzof@xxxxxxxxxx>
- To: cstephens16@xxxxxxxxx, oracle-l <Oracle-L@xxxxxxxxxxxxx>
- Date: Sat, 30 Jun 2018 09:36:33 +0200
W dniu 2018-06-29 o 16:26, Chris Stephens pisze:
3-node RAC 12.2 database on Centos7
We have an application which makes use of SQLAlchemy that is suffering
mightily from "cursor: pin S wait on X" executing the following SQL:
Hi,
as a general source of information I'd recommend
https://andreynikolaev.files.wordpress.com/2016/03/latches_and_mutexes_in_oracle_12c.pdf
especially 'Divide and Conquer the Mutex Contention paragraph'.
Having said that keep in mind it is a fixing from wrong side.
Regards.
G
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