Re: Trouble Upgrading Postgres

Adrian said:

>Tom was referring to this from your previous post:
>(postmaster) total-vm:3068900kB,
>where vm(VM) is Virtual Memory:
>
https://stackoverflow.com/questions/18845857/what-does-anon-rss-and-total-vm-mean#22326766
>So what is your shared_buffers:
>https://www.postgresql.org/docs/10/static/runtime-config-resource.html
>set to?

Ok, thanks for explaining this. Here is the current value:
"shared_buffers" "131072" "8kB"

On Mon, Nov 5, 2018 at 9:06 AM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> On 11/5/18 5:56 AM, Charles Martin wrote:
> > Tom said:
> >
> > >That's kind of odd: a COPY shouldn't really consume very much working
> > >memory. I suspect that much of the process's apparent VM consumption
> may
> > >be shared buffers ... what have you got shared_buffers set to on the
> old
> > >server? If it's more than half a GB or so, maybe reducing it would
> help.
> >
> > This is not a VM, but hardware.
>
> Tom was referring to this from your previous post:
>
> (postmaster) total-vm:3068900kB,
>
> where vm(VM) is Virtual Memory:
>
>
> https://stackoverflow.com/questions/18845857/what-does-anon-rss-and-total-vm-mean#22326766
>
> So what is your shared_buffers:
>
> https://www.postgresql.org/docs/10/static/runtime-config-resource.html
>
> set to?
>
> >
> > Adrian said:
> >
> > >In addition to the other suggestions, what is the exact pg_dump command
> > >you are using?
> >
> > The last time:
> >
> > [postgres(at)mandj tmp]$ pg_dump martinandjones >
> > /mnt/4tbB/pgbackup/2018-11-02/mandj.bak
> >
> >
> >
> >
> > On Sun, Nov 4, 2018 at 8:16 PM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com
> > <mailto:adrian(dot)klaver(at)aklaver(dot)com>> wrote:
> >
> > On 11/4/18 2:55 PM, Charles Martin wrote:
> > > Yep, you called it:
> > >
> > > Nov 2 20:30:45 localhost kernel: Out of memory: Kill process
> 30438
> > > (postmaster) score 709 or sacrifice child
> > > Nov 2 20:30:45 localhost kernel: Killed process 30438, UID 26,
> > > (postmaster) total-vm:3068900kB, anon-rss:1695392kB,
> > file-rss:1074692kB
> > >
> > > So it's running out of memory when trying to dump this table. The
> > "old"
> > > server has 4GB of ram, the "new" server 20GB.
> > >
> >
> > In addition to the other suggestions, what is the exact pg_dump
> command
> > you are using?
> >
> >
> > --
> > Adrian Klaver
> > adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
> >
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>