Re: TEMP_CONFIG vs test_aio

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Andres Freund <andres(at)anarazel(dot)de>, Todd Cook <cookt(at)blackduck(dot)com>
Cc: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Noah Misch <noah(at)leadboat(dot)com>
Subject: Re: TEMP_CONFIG vs test_aio
Date: 2025-04-01 21:08:49
Message-ID: 7dc78fd9-0afc-484e-bcba-c6f58567ab81@dunslane.net
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On 2025-04-01 Tu 4:17 PM, Andres Freund wrote:
> Hi,
>
> On 2025-04-01 20:12:29 +0000, Todd Cook wrote:
>> On 4/1/25, 3:42 PM, "Andres Freund" <andres(at)anarazel(dot)de <mailto:andres(at)anarazel(dot)de>> wrote:
>>> I just committed the tests for AIO, and unfortunately they (so far) fail on
>>> one buildfarm animal:
>>> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=bumblebee&dt=2025-04-01%2018%3A55%3A01 <https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=bumblebee&amp;dt=2025-04-01%2018%3A55%3A01>
>>>
>>> The reason for the failure is simple, the buildfarm animal specifies
>>> io_method=io_uring (thanks to "cookt" for setting that up so quickly, whoever
>>> you are :)) and the test is assuming that the -c io_method=... it passes to
>>> initdb is actually going to be used, but it's overwritten by the TEMP_CONFIG.
>> You're welcome!
>>
>> Is there an alternate way I could use to configure the io_method on bumblebee?
> You could use PG_TEST_INITDB_EXTRA_OPTS, but I think you did it the right
> way.
>
> For one using PG_TEST_INITDB_EXTRA_OPTS would probably require changing the
> buildfarm code, because the buildfarm code filters out environment variables
> that aren't on an allowlist (I really dislike that).

Uh, not quite. Anything in the config's build_env is not filtered out.
That change was made a year ago.

cheers

andrew

--
Andrew Dunstan
EDB:https://www.enterprisedb.com

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