| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, rootcause000(at)gmail(dot)com, pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #18146: Rows reappearing in Tables after Auto-Vacuum Failure in PostgreSQL on Windows |
| Date: | 2023-10-19 19:50:07 |
| Message-ID: | CA+Tgmob3tGBXxceozwWH2Ka7Kwbv8vkOfU8nveCx3JDaqNj7yA@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Wed, Oct 11, 2023 at 11:37 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
> Thanks for thinking about this. Yeah, the existing _START flag does
> indeed seem to be enough. I'd been focusing on trying to control the
> redo point selection, but we just need to delay ProcessSyncRequests(),
> and we had a hammer for that already. Who wants to write the patch?
> It should be trivial, except for the comments.
>
> It's interesting that we'd stun the checkpointer just before we try to
> send it a request in a fixed size queue, but that's OK because we'll
> perform the fsync ourselves if the queue is full.
I don't understand what you mean about stunning the checkpointer, but
here are some patches.
--
Robert Haas
EDB: http://www.enterprisedb.com
| Attachment | Content-Type | Size |
|---|---|---|
| 0002-Panic-if-filesystem-truncation-fails.patch | application/octet-stream | 4.7 KB |
| 0001-RelationTruncate-must-also-set-DELAY_CHKPT_START.patch | application/octet-stream | 3.7 KB |
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