I don't know if it goes all the way back to CentOS 7. I am also less familiarÂwith CentOS generally and whether the NetworkManager way works with this. This is what you'd do in Debian.
On Wed, Jun 9, 2021 at 9:23 AM Brian Lin <blin@xxxxxxxxxxx> wrote:
If the culprit is DNS, you could try adding nss-lookup.target [1] to
the condor unit's "After" list
- Brian
[1] from the systemd.special man page:
ÂÂÂÂÂÂ nss-lookup.target
ÂÂÂÂÂÂÂÂÂÂ A target that should be used as synchronization point for
all host/network name service lookups. Note that this is independent
of UNIX user/group name lookups for which
ÂÂÂÂÂÂÂÂÂÂ nss-user-lookup.target should be used. All services for
which the availability of full host/network name resolution is
essential should be ordered after this target, but not
ÂÂÂÂÂÂÂÂÂÂ pull it in. systemd automatically adds dependencies of
type After= for this target unit to all SysV init script service
units with an LSB header referring to the "$named"
ÂÂÂÂÂÂÂÂÂÂ facility.
On 6/9/21 9:09 AM, Thomas Hartmann
wrote:
Hi Chris,
you could probably list all you services with
 systemd-analyze plot > service_chain.svg
and check, if there is a unit after networking etc. you could
attach to as dependency for condor.service
Unfortunately, on a quick check here, the condor unit is already
one of the last units to be started (needing a lot of scrolling)
Cheers,
 Thomas
On 09/06/2021 11.24, Chris Brew - STFC UKRI wrote:
Thanks All,
I feared that might be the case, before I go off and addÂ
`ExecStartPre=/bin/sleep 30` to the condor systemd service file
(dirty), or add systemd `.timer` file to control the start up
(slightly less dirty), does anyone have an idea of a late stage
networking service I can add a dependency too (cleaner).
Â> If I run `sudo systemctl restart condor` after I can log
into the node
Â> everything comes up cleanly so Iâm wondering if the Master
is coming up
Â> before something that it needs.
ÂÂÂÂÂÂÂÂÂ It's typical, despite our best efforts in the
packaging, for
various bits and pieces of the network, particularly including
DNS/DHCP,
not to be up when the condor master starts.
- ToddM
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