Re: Fix doc: explanation of how postgres works when OOM killer is invoked

Hi Manu

Thank you for the comments.
I registered this to CF https://commitfest.postgresql.org/patch/7407/ .

> I looked into this as well, and the patch matches what I see.

I checked the almost same thing as you did. Thank you for the confirmation.

>
> Two small things:
>
> - With restart_after_crash off, the server does not stay down passively:
> it logs 'shutting down because "restart_after_crash" is off' and shuts
> the whole cluster down, so a manual restart is needed. The patch gives
> the "on" case; it might be worth saying what "off" does too.
>
> - A little further down, this same section recommends protecting the
> postmaster with a low oom_score_adj so the OOM killer picks a child.
> With that in place the victim is a backend -- your "another server
> process" case -- while "the postmaster is terminated" is mostly what
> happens without that protection. Relating the two might help the
> reader, though it may be more than this fix intends.

Both of the points make sense. I added them in v2 patch.

Regards,
Takeshi Ideriha