Re: Add “FOR UPDATE NOWAIT” lock details to the log.
Fujii Masao <masao.fujii@oss.nttdata.com>
From: Fujii Masao <masao.fujii@oss.nttdata.com>
To: Yuki Seino <seinoyu@oss.nttdata.com>,
Jelte Fennema-Nio <postgres@jeltef.nl>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2025-03-14T15:07:25Z
Lists: pgsql-hackers
Attachments
- v1-0001-Extend-log_lock_failure-GUC-to-support-more-NOWAI.patch (text/plain) patch v1-0001
On 2025/03/11 22:24, Fujii Masao wrote: > > > On 2025/03/11 16:50, Yuki Seino wrote: >>> >>> Instead, wouldn't it be simpler to update LockAcquireExtended() to >>> take a new argument, like logLockFailure, to control whether >>> a lock failure should be logged directly? I’ve adjusted the patch >>> accordingly and attached it. Please let me know what you think! >>> >>> Regards, >> Thank you! >> >> It's very simple and nice. >> It seems like it can also handle other lock failure cases by extending logLockFailure. >> > I agree with this propose. > > Thanks for reviewing the patch! > > I've made some minor cosmetic adjustments. The updated patch is attached. > > Unless there are any objections, I'll proceed with committing it. Pushed the patch. Thanks! Using the newly introduced mechanism, we can now easily extend the log_lock_failure GUC to support additional NOWAIT lock failures, such as LOCK TABLE ... NOWAIT, ALTER TABLE ... NOWAIT, ALTER MATERIALIZED VIEW ... NOWAIT, and ALTER INDEX ... NOWAIT. I've attached a patch implementing this. Regards, -- Fujii Masao Advanced Computing Technology Center Research and Development Headquarters NTT DATA CORPORATION
Commits
-
Rename log_lock_failure GUC to log_lock_failures for consistency.
- 73bdcfab35ec 18.0 landed
-
Add GUC option to log lock acquisition failures.
- 6d376c3b0d1e 18.0 landed
-
Split ProcSleep function into JoinWaitQueue and ProcSleep
- 3c0fd64fec8e 18.0 cited