| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Craig Ringer <craig(dot)ringer(at)2ndquadrant(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: pg_basebackup, pg_receivexlog and data durability (was: silent data loss with ext4 / all current versions) |
| Date: | 2016-09-13 01:45:19 |
| Message-ID: | CAB7nPqRXPu4NZnFPM+OB-qQKRFzgTKDei2hHQRhmkE=0w4eU2A@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Sep 13, 2016 at 10:37 AM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> On 2016-09-13 10:35:38 +0900, Michael Paquier wrote:
>> On Sat, Sep 10, 2016 at 7:36 PM, Craig Ringer
>> <craig(dot)ringer(at)2ndquadrant(dot)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.
Er, well.. libeatmydata is only available in AUR for Archlinux x86_64,
and not in sight for Arch ARM...
--
Michael
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