Re: pg_basebackup, pg_receivexlog and data durability (was: silent data loss with ext4 / all current versions)

On 2016-09-13 10:35:38 +0900, Michael Paquier wrote:
> On Sat, Sep 10, 2016 at 7:36 PM, Craig Ringer
> <craig.ringer@2ndquadrant.com> wrote:
> > We need it for tap tests. More and more will use pg_basebackup and it'll
> > start hurting test speeds badly.
> 
> Ah yes, that's a good argument. hamster would suffer pretty badly
> after that if nothing is done. I'll get an extra patch out for that,
> with --no-sync and not --nosync by the way.

FWIW, it might be better to instead use eatmydata in the cron
invocations on such slow machines, that way we also test the fsync paths
in them.