| From: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
|---|---|
| To: | Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, David Steele <david(at)pgmasters(dot)net>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, Jakub Wartak <Jakub(dot)Wartak(at)tomtom(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP: WAL prefetch (another approach) |
| Date: | 2021-05-10 04:11:08 |
| Message-ID: | CA+hUKGKLakuWXsHuOXYYYyk-CiZKgcqXgzwKb61d9nrpgn5eww@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Apr 22, 2021 at 11:22 AM Stephen Frost <sfrost(at)snowman(dot)net> wrote:
> On Wed, Apr 21, 2021 at 19:17 Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
>> On Thu, Apr 22, 2021 at 8:16 AM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
>> ... Personally I think the right thing to do now is to revert it
>> and re-propose for 15 early in the cycle, supported with some better
>> testing infrastructure.
>
> I tend to agree with the idea to revert it, perhaps a +0 on that, but if others argue it should be fixed in-place, I wouldn’t complain about it.
Reverted.
Note: eelpout may return a couple of failures because it's set up to
run with recovery_prefetch=on (now an unknown GUC), and it'll be a few
hours before I can access that machine to adjust that...
> I very much encourage the idea of improving testing in this area and would be happy to try and help do so in the 15 cycle.
Cool. I'm going to try out some ideas.
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