Re: Vacuuming the operating system documentation

Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Thomas Munro <thomas.munro@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-06-06T07:58:43Z
Lists: pgsql-hackers
On 2020-06-06 06:57, Thomas Munro wrote:
> We're carrying a bunch of obsolete and in one case insecure advice on
> kernel settings.  Here's an attempt to clean some of that up.

These changes seem sensible to me.

> HP-UX:
>   * Drop advice for v10.  11.x came out 23 years ago.

We still have a version 10 in the build farm. :)

> It's a bit inconsistent that we bother to explain the SysV shmem
> sysctls on some systems but not others, just because once upon a time
> it was necessary to tweak them on some systems and not others due to
> defaults.  You shouldn't need that anywhere now IIUC, unless you run a
> lot of clusters or use shared_memory_type=sysv.  I'm not proposing to
> add it where it's missing, as I don't have the information and I doubt
> it's really useful anyway; you can find that stuff elsewhere if you
> really need it.

When this was a serious hurdle on the olden days, we added as much 
information as possible.  I agree we can trim it now or let it age out.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services



Commits

  1. Doc: Update example symptom of systemd misconfiguration.

  2. Doc: Clean up references to obsolete OS versions.