From: | Andres Freund <andres(at)anarazel(dot)de> |
---|---|
To: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org, Nazir Bilal Yavuz <byavuz81(at)gmail(dot)com> |
Subject: | Re: pg_upgrade test failure |
Date: | 2022-10-18 16:29:08 |
Message-ID: | 20221018162908.cb3n7tahtekypbkf@awork3.anarazel.de |
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Hi,
On 2022-10-17 23:31:44 -0500, Justin Pryzby wrote:
> On Tue, Oct 18, 2022 at 01:06:15PM +0900, Michael Paquier wrote:
> > On Tue, Oct 18, 2022 at 09:47:37AM +1300, Thomas Munro wrote:
> > > * Server 2019, as used on CI, still uses the traditional NT semantics
> > > (unlink is asynchronous, when all handles closes)
> > > * the fix I proposed has the right effect (I will follow up with tests
> > > to demonstrate)
> >
> > Wow, nice investigation. And cirrus does not offer a newer option
> > either..
>
> Currently Andres builds images based on cirrus's 2019 image, but I think
> we could use any windows docker image.
You unfortunately can't run newer containers than the host OS :(, just user
older ones. And if you use mismatching containers the startup gets slower
because it switches to use full virtualization rather than containers.
I think we need to switch to use full VMs rather than containers. The
performance of the windows containers is just atrocious (build times on a
local VM with the same number of cores is 1/2 of what we see in CI, test times
1/3), they're slow to start due to pulling all files and decompressing them,
and they're fragile. I've asked Bilal (CCed) to work on generating both
containers and images.
Greetings,
Andres Freund
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