Excessive PGA memory usage by the Wnnn Background Process (Doc ID 2685491.1)
Cause
Bug 30098251 - WNNN PROCCESSES CREATE AN EXCESSIVE NUMBER OF OPEN CURSORS
Wnnn process has high number of open cursors and consuming more memory.
Solution
Upgrde to below releases where the fix for 30098251 is first included.
20.1.0
19.6.0.0.200114 (Jan 2020) Database Release Update (DB RU)
...
Thanks
Regards,
Dominic
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Noveljic Nenad<mailto:nenad.noveljic@xxxxxxxxxxxx>
Sent: 15 July 2021 12:31
To: Dominic Brooks<mailto:dombrooks@xxxxxxxxxxx>;
ORACLE-L<mailto:oracle-l@xxxxxxxxxxxxx>
Subject: RE: KTSJ / Wnnn
According to the bug note, it’s fixed in 20.1.
According to the Bug Matrix document, it’s also fixed in 19.11
I’ve observed it in 19.7.
From: Dominic Brooks <dombrooks@xxxxxxxxxxx>
Sent: Donnerstag, 15. Juli 2021 13:24
To: Noveljic Nenad <nenad.noveljic@xxxxxxxxxxxx>; ORACLE-L
<oracle-l@xxxxxxxxxxxxx>
Subject: RE: KTSJ / Wnnn
This is just an UPDATE, no LOB involved at all.
Bug you mentioned 30098251 is fixed in this 19.6 version.
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