| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
| Cc: | PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: reorder pg_rewind control file sync |
| Date: | 2019-03-25 22:37:42 |
| Message-ID: | 20190325223742.GH2558@paquier.xyz |
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| Lists: | pgsql-hackers |
On Mon, Mar 25, 2019 at 10:29:46AM +0100, Fabien COELHO wrote:
> I have run the non regression tests. I'm not sure of what scenarii are
> covered there, but probably not an interruption in the middle of a fsync,
> specially if fsync is usually disabled to ease the tests:-)
Force the tool to stop at a specific point requires a booby-trap. And
even if fsync is not killed, you could just enforce the tool to stop
once before updating the control file, and attempt a re-run without
the trap, checking if it works at the second attempt, so the problem
is quite independent from the timing of fsync().
--
Michael
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