I still have a NS7 running that suddenly started to report restic backups errors (locks) by email while actually the log shows that everything is ok.
The email :
Backup: ecowez-mattlabs
Backup started at 2025-12-18 03:05:02
Pre backup scripts status: SUCCESS
using parent snapshot a1cb7b35
Files: 1 new, 102 changed, 169215 unmodified
Dirs: 1 new, 42 changed, 70459 unmodified
Added to the repo: 97.519 MiB
processed 169318 files, 147.849 GiB in 0:27
snapshot 536659de saved
unable to create lock in backend: repository is already locked by PID 20946 on cloud.ecowez.be by root (UID 0, GID 0)
lock was created at 2025-12-18 03:05:13 (34.529228111s ago)
storage ID 34be9d2b
the `unlock` command can be used to remove stale locks
Cleanup failed
Action 'backup-data-restic ecowez-mattlabs': FAIL
Backup status: FAIL
Log file: /var/log/backup/backup-ecowez-mattlabs-202512180305.log
The log file :
[root@cloud ~]# cat /var/log/backup/backup-ecowez-mattlabs-202512180305.log
Backup: ecowez-mattlabs
Backup started at 2025-12-18 03:05:01
Pre backup scripts status: SUCCESS
using parent snapshot 536659de
Files: 7556 new, 165321 changed, 0 unmodified
Dirs: 1934 new, 70197 changed, 0 unmodified
Added to the repo: 592.576 MiB
processed 172877 files, 150.462 GiB in 8:58
snapshot f269e350 saved
Applying Policy: all snapshots within 7d of the newest
keep 17 snapshots:
ID Time Host Tags Reasons Paths
------------------------------------------------------------------------------------------------------------------
ad67a036 2025-12-12 03:05:17 cloud.ecowez.be ecowez-mattlabs within 7d /opt/mattermost/config/config.json
/root
/usr/share/nextcloud/config/config.php
/var/lib/collectd
/var/lib/nethserver
/var/lib/redis/rspamd
/var/lib/rspamd
/var/lib/sogo/backups
/var/www/html
eb5909a2 2025-12-12 03:05:21 cloud.ecowez.be ecowez-mattlabs within 7d /opt/mattermost/config/config.json
/root
/usr/share/nextcloud/config/config.php
/var/lib/collectd
/var/lib/nethserver
/var/lib/redis/rspamd
/var/lib/rspamd
/var/lib/sogo/backups
/var/www/html
ffa1480a 2025-12-13 03:05:15 cloud.ecowez.be ecowez-mattlabs within 7d /opt/mattermost/config/config.json
/root
/usr/share/nextcloud/config/config.php
/var/lib/collectd
/var/lib/rspamd
/var/lib/sogo/backups
/var/www/html
------------------------------------------------------------------------------------------------------------------
17 snapshots
remove 3 snapshots:
ID Time Host Tags Paths
-------------------------------------------------------------------------------------------------------
1996068c 2025-12-10 13:03:28 cloud.ecowez.be ecowez-mattlabs /opt/mattermost/config/config.json
/root
/usr/share/nextcloud/config/config.php
/var/lib/collectd
/var/lib/nethserver
/var/lib/redis/rspamd
/var/lib/rspamd
/var/lib/sogo/backups
/var/www/html
d6c56419 2025-12-11 03:05:13 cloud.ecowez.be ecowez-mattlabs /opt/mattermost/config/config.json
/root
/usr/share/nextcloud/config/config.php
/var/lib/collectd
/var/lib/nethserver
/var/lib/redis/rspamd
/var/lib/rspamd
/var/lib/sogo/backups
/var/www/html
8e5d2842 2025-12-11 03:05:18 cloud.ecowez.be ecowez-mattlabs /opt/mattermost/config/config.json
/root
/usr/share/nextcloud/config/config.php
/var/lib/collectd
/var/lib/nethserver
/var/lib/redis/rspamd
/var/lib/rspamd
/var/lib/sogo/backups
/var/www/html
-------------------------------------------------------------------------------------------------------
3 snapshots
[0:00] 100.00% 3 / 3 files deleted
Action 'backup-data-restic ecowez-mattlabs': SUCCESS
Post backup scripts status: SUCCESS
Backup status: SUCCESS
Backup ended at 2025-12-18 03:15:06
Time elapsed: 0 hours, 10 minutes, 5 seconds
Strange, isn’t it ? 
It took me a while to figure out that nothing was wrong beside the email 
Does it ring a bell to anybody?
