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https://stats.openqa-monitor.qa.suse.de/d/KToPYLEWz/failed-systemd-services shows

Currently failing services
Last update | Host | Failing units | # failed services
2021-05-23 05:48:00 | openqaworker-arm-1 | var-lib-openqa-share.mount, os-autoinst-openvswitch | 2
2021-05-23 03:40:00 | openqaworker13 | var-lib-openqa-share.mount | 1
2021-05-23 03:39:00 | grenache-1 | var-lib-openqa-share.mount, os-autoinst-openvswitch | 2
2021-05-22 04:13:00 | openqaworker-arm-2 | var-lib-openqa-share.mount | 1
2021-05-22 01:47:00 | openqaworker-arm-3 | var-lib-openqa-share.mount, os-autoinst-openvswitch | 2

os-autoinst-openvswitch tracked in #92969

@mkittler can you comment about your suggestions in #89551#note-8 . Have you tried them? Should we try again?

Trying on openqaworker-arm-3 with:

cat - > /etc/systemd/system/fix_mounts.service  <<EOF
[Unit]
Description=Fix failed mounts by explicit mount command early (https://progress.opensuse.org/issues/92302)
Before=var-lib-openqa-share.mount
DefaultDependencies=no

[Service]
Type=oneshot
ExecStart=/usr/bin/mount -a

[Install]
WantedBy=multi-user.target
EOF

https://gitlab.suse.de/openqa/salt-states-openqa/-/merge_requests/496

fix_mounts.service fails after boot because it's also started to early:

May 23 19:47:44 openqaworker-arm-3 os-autoinst-openvswitch[2684]: Waiting for IP on bridge 'br1', 247s left ...
May 23 19:47:45 openqaworker-arm-3 mount[1147]: mount.nfs: Resource temporarily unavailable
May 23 19:47:45 openqaworker-arm-3 systemd[1]: fix_mounts.service: Main process exited, code=exited, status=64/n/a
May 23 19:47:45 openqaworker-arm-3 systemd[1]: Failed to start Fix failed mounts by explicit mount command early (https://progress.opensuse.org/issues/92302).
May 23 19:47:45 openqaworker-arm-3 systemd[1]: fix_mounts.service: Unit entered failed state.
May 23 19:47:45 openqaworker-arm-3 systemd[1]: fix_mounts.service: Failed with result 'exit-code'.
May 23 19:47:45 openqaworker-arm-3 systemd[1]: Mounting /var/lib/openqa/share...
May 23 19:47:45 openqaworker-arm-3 systemd[1]: var-lib-openqa-share.mount: Mount process exited, code=exited status=32
May 23 19:47:45 openqaworker-arm-3 systemd[1]: Failed to mount /var/lib/openqa/share.
…

trying to introduce additional dependencies waiting for sockets.target.

Tried increased timeout and retries in /etc/fstab

# extended NFS retry https://progress.opensuse.org/issues/89551
openqa.suse.de:/var/lib/openqa/share        /var/lib/openqa/share   nfs ro,x-systemd.mount-timeout=30m,retry=30 0 0

but this does not prevent the mount points to show up as failed for the first five minutes after boot. Also looks like this for the specific mount unit:

# journalctl -f -u var-lib-openqa-share.mount
May 24 14:23:49 openqaworker-arm-3 systemd[1]: Mounting /var/lib/openqa/share...
May 24 14:23:49 openqaworker-arm-3 systemd[1]: var-lib-openqa-share.mount: Mount process exited, code=exited status=32
May 24 14:23:49 openqaworker-arm-3 systemd[1]: Failed to mount /var/lib/openqa/share.
May 24 14:23:49 openqaworker-arm-3 systemd[1]: var-lib-openqa-share.mount: Unit entered failed state.
May 24 14:28:14 openqaworker-arm-3 systemd[1]: Mounting /var/lib/openqa/share...
May 24 14:28:16 openqaworker-arm-3 systemd[1]: Mounted /var/lib/openqa/share.

Trying again with fix_mounts.service on top:

# /etc/systemd/system/fix_mounts.service
[Unit]
Description=Fix failed mounts by explicit mount command early (https://progress.opensuse.org/issues/92302)
After=sockets.target
Wants=sockets.target
Before=var-lib-openqa-share.mount
DefaultDependencies=no

[Service]
Type=oneshot
ExecStart=/usr/bin/mount -a

[Install]
WantedBy=multi-user.target

this both combined seems to work good:

run: 01, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  14:37:26  up   0:15,  1 user,  load average: 1.09, 1.15, 0.93
running
Connection to openqaworker-arm-3 closed by remote host.
run: 02, openqaworker-arm-3: ping .. ok, ssh .. run: 03, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot: "System is booting up. See pam_nologin(8)"
Connection closed by 10.160.0.85 port 22
run: 04, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  14:48:56  up   0:05,  0 users,  load average: 1.41, 1.41, 0.71
starting
run: 05, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  14:51:25  up   0:08,  0 users,  load average: 0.80, 1.17, 0.72
running
Connection to openqaworker-arm-3 closed by remote host.
run: 06, openqaworker-arm-3: ping .. ok, ssh .. run: 07, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:03:12  up   0:05,  0 users,  load average: 1.84, 1.47, 0.72
starting
run: 08, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:05:40  up   0:08,  0 users,  load average: 0.31, 0.98, 0.65
running
Connection to openqaworker-arm-3 closed by remote host.
run: 09, openqaworker-arm-3: ping .. ok, ssh .. run: 10, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:16:48  up   0:05,  0 users,  load average: 2.09, 1.47, 0.69
starting
run: 11, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:19:17  up   0:07,  0 users,  load average: 1.22, 1.28, 0.73
running
Connection to openqaworker-arm-3 closed by remote host.
run: 12, openqaworker-arm-3: ping .. ok, ssh .. run: 13, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot: "System is booting up. See pam_nologin(8)"
Connection closed by 10.160.0.85 port 22
run: 14, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:30:47  up   0:05,  0 users,  load average: 1.28, 1.33, 0.67
starting
run: 15, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:33:17  up   0:08,  0 users,  load average: 0.68, 1.09, 0.68
running
Connection to openqaworker-arm-3 closed by remote host.
run: 16, openqaworker-arm-3: ping .. ok, ssh .. run: 17, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:44:22  up   0:05,  0 users,  load average: 1.81, 1.37, 0.66
starting
run: 18, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:46:51  up   0:07,  0 users,  load average: 1.04, 1.14, 0.67
running
Connection to openqaworker-arm-3 closed by remote host.
run: 19, openqaworker-arm-3: ping .. ok, ssh .. run: 20, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  15:57:58  up   0:05,  0 users,  load average: 2.06, 1.40, 0.64
starting
run: 21, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  16:00:27  up   0:07,  1 user,  load average: 1.27, 1.32, 0.73
running

so at least 14 successful reboots, the other runs either aborted or accessed the system when it was still in the process of bootup. Tried again with disabled fix_mounts.service and that is not enough:

echo "### disable fix_mounts.service again, only timeout and retry options in fstab"; export host=openqaworker-arm-3; for run in {01..30}; do for host in $host; do echo -n "run: $run, $host: ping .. " && timeout -k 5 600 sh -c "until ping -c30 $host >/dev/null; do :; done" && echo -n "ok, ssh .. " && timeout -k 5 600 sh -c "until nc -z -w 1 $host 22; do :; done" && echo -n "ok, uptime/reboot: " && ssh $host "uptime && sudo systemctl is-system-running && sudo reboot || sudo systemctl --failed --no-legend" && sleep 120 || break; done || break; done
### disable fix_mounts.service again, only timeout and retry options in fstab
run: 01, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  16:21:40  up   0:15,  1 user,  load average: 0.81, 0.84, 0.72
running
Connection to openqaworker-arm-3 closed by remote host.
run: 02, openqaworker-arm-3: ping .. ok, ssh .. run: 03, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  16:33:20  up   0:05,  0 users,  load average: 1.58, 1.48, 0.76
starting
var-lib-openqa-share.mount loaded failed failed /var/lib/openqa/share
run: 04, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  16:35:49  up   0:08,  0 users,  load average: 0.56, 1.13, 0.73
running
Connection to openqaworker-arm-3 closed by remote host.
run: 05, openqaworker-arm-3: ping .. ok, ssh .. run: 06, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  16:46:50  up   0:05,  0 users,  load average: 2.04, 1.50, 0.71
starting
var-lib-openqa-share.mount loaded failed failed /var/lib/openqa/share
run: 07, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  16:49:20  up   0:07,  0 users,  load average: 0.75, 1.15, 0.70
running
Connection to openqaworker-arm-3 closed by remote host.
run: 08, openqaworker-arm-3: ping .. ok, ssh .. run: 09, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  17:00:22  up   0:05,  0 users,  load average: 1.72, 1.36, 0.65
starting
var-lib-openqa-share.mount loaded failed failed /var/lib/openqa/share
run: 10, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  17:02:50  up   0:07,  0 users,  load average: 0.88, 1.18, 0.69
running
Connection to openqaworker-arm-3 closed by remote host.
run: 11, openqaworker-arm-3: ping .. ok, ssh .. run: 12, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  17:13:51  up   0:05,  0 users,  load average: 1.75, 1.39, 0.67
starting
var-lib-openqa-share.mount loaded failed failed /var/lib/openqa/share
run: 13, openqaworker-arm-3: ping .. ok, ssh .. ok, uptime/reboot:  17:16:21  up   0:07,  0 users,  load average: 0.86, 1.19, 0.71
running
Connection to openqaworker-arm-3 closed by remote host.

failing service var-lib-openqa-share.mount. The systemd documentation https://www.freedesktop.org/software/systemd/man/systemd.mount.html# explains "Network mount units automatically acquire After= dependencies on remote-fs-pre.target, network.target and network-online.target, and gain a Before= dependency on remote-fs.target unless nofail mount option is set. Towards the latter a Wants= unit is added as well." which I can confirm. But https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/ states "By default all remote mounts defined in /etc/fstab pull this service in, in order to make sure the network is up before it is attempted to connect to a network share." which does not seem to work in our case. I suspect an actual bug in wicked. But as I assume no one is willing or able to fix that without us having a small and easy reproducer I am not even bothering reporting that elsewhere.

As alternatives I should try other options in fstab, e.g. nofail,x-systemd.device-timeout=600,noauto,x-systemd.automount

new experiment with fstab entry

# extended NFS retry https://progress.opensuse.org/issues/89551
openqa.suse.de:/var/lib/openqa/share            /var/lib/openqa/share   nfs     ro,,noauto,nofail,retry=30,x-systemd.mount-timeout=30m,x-systemd.device-timeout=10m,x-systemd.automount 0 0 

and no fix_mounts.service.

Running test with

echo -e "### disable fix_mounts.service again, fstab entry noauto,nofail,retry=30,x-systemd.mount-timeout=30m,x-systemd.device-timeout=10m,x-systemd.automount"; export host=openqaworker-arm-3; for run in {01..30}; do for host in $host; do echo -e -n "\nrun: $run, $host: ping .. " && timeout -k 5 600 sh -c "until ping -c30 $host >/dev/null; do :; done" && echo -n "ok, ssh .. " && timeout -k 5 600 sh -c "until nc -z -w 1 $host 22; do :; done" && echo -n "ok, uptime/reboot: " && ssh $host "uptime && sudo systemctl is-system-running && test -d /var/lib/openqa/share/factory/ && sudo reboot || sudo systemctl --failed --no-legend" && echo -n " .. ok" && sleep 120 || break; done || break; done

20 reboots successful, https://gitlab.suse.de/openqa/salt-states-openqa/-/merge_requests/496 ready

checking after next weekend(s) if this prevents further alerts.

https://stats.openqa-monitor.qa.suse.de/d/KToPYLEWz/failed-systemd-services?orgId=1&from=now-30d&to=now shows no reference to failed NFS mount units since long.