| From: | Ants Aasma <ants(at)cybertec(dot)at> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Rajeev rastogi <rajeev(dot)rastogi(at)huawei(dot)com>, Ants Aasma <ants(at)cybertec(dot)at>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Markus Wanner <markus(at)bluegap(dot)ch> |
| Subject: | Re: Proposal for CSN based snapshots |
| Date: | 2014-05-12 15:41:18 |
| Message-ID: | CA+CSw_uCbX6eSZ_N=xeyk4HGZwMQQpESc2a+YT740OXCVuBbMw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, May 12, 2014 at 6:09 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> However, I wonder what
> happens if you write the commit record and then the attempt to update
> pg_clog fails. I think you'll have to PANIC, which kind of sucks.
CLOG IO error while commiting is already a PANIC, SimpleLruReadPage()
does SlruReportIOError(), which in turn does ereport(ERROR), while
inside a critical section initiated in RecordTransactionCommit().
Regards,
Ants Aasma
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Cybertec Schönig & Schönig GmbH
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