Re: Avoid memory leaks during base backups

From: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, tgl(at)sss(dot)pgh(dot)pa(dot)us, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Avoid memory leaks during base backups
Date: 2022-09-28 09:30:30
Message-ID: CALj2ACV+9P4TobZMNSMv1buQF_QTvT+R-XX69jtv56+kKBDbMg@mail.gmail.com
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On Wed, Sep 28, 2022 at 10:09 AM Bharath Rupireddy
<bharath(dot)rupireddyforpostgres(at)gmail(dot)com> wrote:
>
> Here's what I think - for backup functions, we
> can have the new memory context child of TopMemoryContext and for
> perform_base_backup(), we can have the memory context child of
> CurrentMemoryContext. With PG_TRY()-PG_FINALLY()-PG_END_TRY(), we can
> delete those memory contexts upon ERRORs. This approach works for us
> since backup-related code doesn't have any FATALs.
>
> Thoughts?

I'm attaching the v2 patch designed as described above. Please review it.

I've added an entry in CF - https://commitfest.postgresql.org/40/3915/

--
Bharath Rupireddy
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com

Attachment Content-Type Size
v2-0001-Avoid-memory-leaks-during-backups.patch application/x-patch 10.4 KB

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