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The issue you are facing: borg.locking.NotMyLock
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
- I use rclone to mount a S3 “partition” on which the backup has to be done by borg.
- I use an automatic backup defined via AIO
Since few days, dayly backups are in errors: borg.locking.NotMyLock: Failed to release the lock /mnt/borgbackup/borg/lock.exclusive (was/is locked, but not by me).
The output of backup logs:
Performing backup...
2024-09-11T02:02:24.873585589Z Starting the backup...
2024-09-11T02:02:25.886346123Z Creating archive at "/mnt/borgbackup/borg::20240911_020224-nextcloud-aio"
2024-09-11T02:02:33.382155808Z Exception ignored in: <function Repository.__del__ at 0x70dd1227b740>
2024-09-11T02:02:33.382181044Z Traceback (most recent call last):
2024-09-11T02:02:33.382184391Z File "/usr/lib/python3.12/site-packages/borg/repository.py", line 192, in __del__
2024-09-11T02:02:33.382423978Z self.close()
2024-09-11T02:02:33.382430991Z File "/usr/lib/python3.12/site-packages/borg/repository.py", line 481, in close
2024-09-11T02:02:33.382608332Z self.lock.release()
2024-09-11T02:02:33.382613541Z File "/usr/lib/python3.12/site-packages/borg/locking.py", line 425, in release
2024-09-11T02:02:33.382840465Z self._lock.release()
2024-09-11T02:02:33.382903683Z File "/usr/lib/python3.12/site-packages/borg/locking.py", line 169, in release
2024-09-11T02:02:33.383001585Z raise NotMyLock(self.path)
2024-09-11T02:02:33.383092835Z borg.locking.NotMyLock: Failed to release the lock /mnt/borgbackup/borg/lock.exclusive (was/is locked, but not by me).
2024-09-11T02:02:33.383267260Z Failed to release the lock /mnt/borgbackup/borg/lock.exclusive (was/is locked, but not by me).
Sometime, the error appears later, while Compacting the archives:
Performing backup...
2024-09-11T14:29:07.532215013Z Starting the backup...
2024-09-11T14:29:08.893280738Z Creating archive at "/mnt/borgbackup/borg::20240911_142907-nextcloud-aio"
2024-09-11T14:29:51.049927729Z ------------------------------------------------------------------------------
2024-09-11T14:29:51.049956983Z Repository: /mnt/borgbackup/borg
2024-09-11T14:29:51.050139494Z Archive name: 20240911_142907-nextcloud-aio
2024-09-11T14:29:51.050146627Z Archive fingerprint: 314eb989e280aac4375ad0816b38abbda011cee4539e94b68ce9e35a51433c30
2024-09-11T14:29:51.050150514Z Time (start): Wed, 2024-09-11 14:29:08
2024-09-11T14:29:51.050154030Z Time (end): Wed, 2024-09-11 14:29:47
2024-09-11T14:29:51.050157497Z Duration: 38.97 seconds
2024-09-11T14:29:51.050161003Z Number of files: 69004
2024-09-11T14:29:51.050164590Z Utilization of max. archive size: 0%
2024-09-11T14:29:51.050168086Z ------------------------------------------------------------------------------
2024-09-11T14:29:51.050198523Z Original size Compressed size Deduplicated size
2024-09-11T14:29:51.050202551Z This archive: 33.57 GB 29.86 GB 35.41 MB
2024-09-11T14:29:51.050206318Z All archives: 333.10 GB 295.42 GB 20.86 GB
2024-09-11T14:29:51.050210045Z
2024-09-11T14:29:51.050213582Z Unique chunks Total chunks
2024-09-11T14:29:51.050217229Z Chunk index: 72510 815585
2024-09-11T14:29:51.050280396Z ------------------------------------------------------------------------------
2024-09-11T14:29:51.257996180Z BORG_PRUNE_OPTS are --keep-within=7d --keep-weekly=4 --keep-monthly=6
2024-09-11T14:29:51.258028200Z Pruning the archives...
2024-09-11T14:29:52.707460483Z ------------------------------------------------------------------------------
2024-09-11T14:29:52.707492042Z Original size Compressed size Deduplicated size
2024-09-11T14:29:52.707529122Z Deleted data: 0 B 0 B 0 B
2024-09-11T14:29:52.707535704Z All archives: 333.10 GB 295.42 GB 20.86 GB
2024-09-11T14:29:52.707540864Z
2024-09-11T14:29:52.707545693Z Unique chunks Total chunks
2024-09-11T14:29:52.707550993Z Chunk index: 72510 815585
2024-09-11T14:29:52.707555981Z ------------------------------------------------------------------------------
2024-09-11T14:29:53.003900744Z Compacting the archives...
2024-09-11T14:29:53.838594739Z Exception ignored in: <function Repository.__del__ at 0x7db44db5f740>
2024-09-11T14:29:53.838630486Z Traceback (most recent call last):
2024-09-11T14:29:53.838636437Z File "/usr/lib/python3.12/site-packages/borg/repository.py", line 192, in __del__
2024-09-11T14:29:53.838767671Z self.close()
2024-09-11T14:29:53.838801655Z File "/usr/lib/python3.12/site-packages/borg/repository.py", line 481, in close
2024-09-11T14:29:53.839079974Z self.lock.release()
2024-09-11T14:29:53.839085965Z File "/usr/lib/python3.12/site-packages/borg/locking.py", line 425, in release
2024-09-11T14:29:53.839249640Z self._lock.release()
2024-09-11T14:29:53.839293773Z File "/usr/lib/python3.12/site-packages/borg/locking.py", line 169, in release
2024-09-11T14:29:53.839379012Z raise NotMyLock(self.path)
2024-09-11T14:29:53.839427742Z borg.locking.NotMyLock: Failed to release the lock /mnt/borgbackup/borg/lock.exclusive (was/is locked, but not by me).
2024-09-11T14:29:53.839567614Z Failed to release the lock /mnt/borgbackup/borg/lock.exclusive (was/is locked, but not by me).
Many thanks for your help.
Christophe