On Fri, Dec 27, 2019 at 12:58:18AM +1300, Richard Hector wrote:
> $ sudo systemctl kill -s HUP rsyslog.service
> Failed to kill unit rsyslog.service: Input/output error
-s, --signal=
When used with kill, choose which signal to send to selected
processes. Must be one of the well-known signal specifiers such as
SIGTERM, SIGINT or SIGSTOP. If omitted, defaults to SIGTERM.
So... first thought, what happens if you spell it SIGHUP instead of HUP?
Second thought,
<https://www.google.com/search?q=systemctl+kill+input%2Foutput+error>
Result #1 is
<https://discourse.roots.io/t/failed-to-kill-unit-rsyslog-service-input-output-error/15495>
which was closed after several weeks with no solution found.
Result #3 is
<https://bugs.launchpad.net/ubuntu/+source/logrotate/+bug/1801910>
which apparently involves proxmox and claims to have solved the problem
by installing "rsyslog above on the container", whatever that means.