Re: make MaxBackends available in _PG_init

From: "Bossart, Nathan" <bossartn(at)amazon(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>
Cc: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: make MaxBackends available in _PG_init
Date: 2021-08-03 23:13:26
Message-ID: 34ACE850-D6F5-4E3E-8835-DD48264964E4@amazon.com
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On 8/2/21, 4:02 PM, "Bossart, Nathan" <bossartn(at)amazon(dot)com> wrote:
> On 8/2/21, 3:42 PM, "Andres Freund" <andres(at)anarazel(dot)de> wrote:
>> I've wondered, independent of this thread, about not making MaxBackends
>> externally visible, and requiring a function call to access it. It should be
>> easier to find cases of misuse if we errored out when accessed at the wrong
>> time. And we could use that opportunity to add flags that determine which
>> types of backends are included (e.g. not including autovac, or additionally
>> including aux workers or prepared xacts).
>
> I'm not opposed to this. I can work on putting a patch together if no
> opposition materializes.

Here is a first attempt.

Nathan

Attachment Content-Type Size
v1-0001-Disallow-external-access-to-MaxBackends.patch application/octet-stream 30.3 KB

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