Re: Improve pg_sync_replication_slots() to wait for primary to advance

Ajin Cherian <itsajin@gmail.com>

From: Ajin Cherian <itsajin@gmail.com>

To: Amit Kapila <amit.kapila16@gmail.com>

Cc: shveta malik <shveta.malik@gmail.com>, Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>, Japin Li <japinli@hotmail.com>, Ashutosh Sharma <ashu.coek88@gmail.com>, PostgreSQL mailing lists <pgsql-hackers@postgresql.org>

Date: 2025-12-04T05:21:39Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Enhance slot synchronization API to respect promotion signal.
- 4bed04d39566 17.10 landed
- 94efd308bcec 18.4 landed
- 1362bc33e025 19 (unreleased) landed
Fix inconsistent elevel in pg_sync_replication_slots() retry logic.
- f1ddaa15357f 19 (unreleased) landed
Refactor slot synchronization logic in slotsync.c.
- 788ec96d591d 19 (unreleased) landed
Fix intermittent BF failure in 040_standby_failover_slots_sync.
- b47c50e5667b 19 (unreleased) landed
Add retry logic to pg_sync_replication_slots().
- 0d2d4a0ec3ec 19 (unreleased) landed
Fix LOCK_TIMEOUT handling in slotsync worker.
- 04396eacd3fa 19 (unreleased) cited
Add slotsync skip statistics.
- 76b78721ca49 19 (unreleased) cited

Attachments

v29-0001-Use-SIGUSR1-to-interrupt-slot-synchronization-wo.patch (application/octet-stream) patch v29-0001

On Wed, Dec 3, 2025 at 10:19 PM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Wed, Dec 3, 2025 at 8:51 AM Ajin Cherian <itsajin@gmail.com> wrote:
> >
> > Attaching patch v28 addressing these comments.
> >
>
> Can we extract the part of the patch that handles SIGUSR1 signal
> separately as a first patch and the remaining as a second patch?
> Please do mention the reason in the commit message as to why we are
> changing the signal for SIGINT to SIGUSR1.
>

I have extracted out the SIGUSR1 signal handling changes separately
into a patch and sharing. I will share the next patch later.
Let me know if there are any comments for this patch.

regards,
Ajin Cherian
Fujitsu Australia