| From: | "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com> |
|---|---|
| To: | 'Michael Paquier' <michael(at)paquier(dot)xyz> |
| Cc: | "'pgsql-hackers(at)lists(dot)postgresql(dot)org'" <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | RE: ReplicationSlotRelease() crashes when the instance is in the single user mode |
| Date: | 2025-02-18 08:23:43 |
| Message-ID: | OSCPR01MB14966559522B9699E1F769128F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com |
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| Lists: | pgsql-hackers |
Dear Michael,
> Ah, good point for the slot drop. So 0ce5cf2ef24f is claiming that
> some of these manipulations are OK. I didn't suspect this one.
Yeah, I think so.
> Slot advancing is a very different beast, unfortunately, that may
> depend on many other subsystems. For example with logical slots we
> would finish by calling rm_decode, which could be outside of core.
> Justifying that this operation is supported in single-user mode is
> larger than what you are suggesting here..
OK. Actually, I do not have any use-cases in my mind. I played because
I found a special path for single user mode in ReplicationSlotAcquire()
so that I wanted to see the behavior.
Best regards,
Hayato Kuroda
FUJITSU LIMITED
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