Re: 13.4 on RDS, SSL SYSCALL EOF on restore

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Wells Oliver <wells(dot)oliver(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-admin <pgsql-admin(at)postgresql(dot)org>
Subject: Re: 13.4 on RDS, SSL SYSCALL EOF on restore
Date: 2021-10-08 22:43:18
Message-ID: 20211008224318.GE31533@momjian.us
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On Fri, Oct 8, 2021 at 03:34:04PM -0700, Wells Oliver wrote:
> Dug out some more logging:
>
> 2021-10-08 20:18:46 UTC::@:[27842]:LOG:  checkpoint complete: wrote 43719
> buffers (8.3%); 0 WAL file(s) added, 0 removed, 842 recycled; write=3239.859 s,
> sync=0.560 s, total=3242.821 s; sync files=67, longest=0.050 s, average=0.008
> s; distance=55175592 kB, estimate=55185037 kB
> 2021-10-08 20:24:44 UTC::@:[27842]:LOG:  checkpoint starting: time
> 2021-10-08 20:35:08 UTC::@:[12682]:LOG:  server process (PID 3970) was
> terminated by signal 9: Killed
------------------------------

Ah, this line above is probably the out-of-memory killer, meaning you
allocated too much memory and the operating system killed a backend
process with kill -9, causing the server to have to restart. Reducing
maintenance_work_mem is probably the right solution, or increase your
RAM.

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

If only the physical world exists, free will is an illusion.

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