| From: | Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com> |
|---|---|
| To: | shveta malik <shveta(dot)malik(at)gmail(dot)com> |
| Cc: | Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com>, "Zhijie Hou (Fujitsu)" <houzj(dot)fnst(at)fujitsu(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, SATYANARAYANA NARLAPURAM <satyanarlapuram(at)gmail(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: [PATCH] Release replication slot on error in SQL-callable slot functions |
| Date: | 2026-08-13 01:30:00 |
| Message-ID: | CALj2ACU6BY=WyWJtqLUBx5+tYUXqi+cGVfg7kdqyKC5WngES4w@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hi,
On Mon, Aug 10, 2026 at 11:16 PM shveta malik <shveta(dot)malik(at)gmail(dot)com> wrote:
>
> > I will drop both asserts and
> > keep a short comment explaining why the slot is still held here. The
> > existing AtEOSubXact_LargeObject() and AtEOSubXact_Files() don't check
> > the passed-in mySubid for invalid either.
> >
> > Does the following work for you?
> >
> > /*
> > * The aborting subxact is the one that acquired the slot, so the slot is
> > * still held and must be released. acquiredInSubId is set only when a slot
> > * is held and cleared when it is released, so a matching subxact id means
> > * the slot is ours.
> > */
> > ReplicationSlotRelease();
>
> I am okay with this comment. No 'MyReplicationSlot-null' check and no assert.
Thanks. Done so in the attached v12 patch. Please have a look.
--
Bharath Rupireddy
Amazon Web Services: https://aws.amazon.com
| Attachment | Content-Type | Size |
|---|---|---|
| v12-0001-Fix-replication-slot-leak-on-error-caught-in-a-s.patch | application/octet-stream | 16.9 KB |
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