Re: Add pg_file_sync() to adminpack

Michael Paquier <[email protected]> Tue, 14 Jan 2020 15:17:56 +0900

Newsgroups	gmane.comp.db.postgresql.devel.general
Message-ID	<[email protected]>

On Mon, Jan 13, 2020 at 03:39:32PM +0100, Julien Rouhaud wrote:
> Actually, can't it create a security hazard, for instance if you call
> pg_file_sync() on a heap file and the calls errors out, since it's
> bypassing data_sync_retry?

Are you mistaking security with durability here?  By default, the
function proposed is only executable by a superuser, so that's not
really a security concern..  But I agree that failing to detect a
PANIC on a fsync for a sensitive Postgres file could lead to
corruptions.  That's why we PANIC these days. 
--
Michael

signature.asc (application/pgp-signature, 833 B)