Horton

Re: unconstrained memory growth in long running procedure stored procedure after upgrading 11-12

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: Merlin Moncure <mmoncure@gmail.com>, pgsql-hackers@postgresql.org, Andres Freund <andres@anarazel.de>
Date: 2021-03-31T00:14:22Z
Lists: pgsql-hackers 
Justin Pryzby <pryzby@telsasoft.com> writes:
> On Tue, Mar 30, 2021 at 04:17:03PM -0500, Merlin Moncure wrote:
>> We just upgraded from postgres 11 to 12.6 and our server is running
>> out of memory and rebooting about 1-2 times a day.

> I haven't tried your test, but this sounds a lot like the issue I reported with
> JIT, which is enabled by default in v12.

FWIW, I just finished failing to reproduce any problem with that
test case ... but I was using a non-JIT-enabled build.

			regards, tom lane