Backup of LXC failing

[guff666]

I'm running Proxmox 7.4.16 on several (unclustered) nodes. One LXC on one of the nodes repeatedly fails to backup; though it did use to.

Normally, it backs up to PBS, but to eliminate this, I ran a backup to local storage and got the following

INFO: Backup started at 2023-12-31 13:42:48
INFO: status = running
INFO: CT Name: emoncms
INFO: including mount point rootfs ('/') in backup
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: create storage snapshot 'vzdump'
  Logical volume "snap_vm-100-disk-0_vzdump" created.
INFO: creating vzdump archive '/var/lib/vz/dump/vzdump-lxc-100-2023_12_31-13_42_48.tar.zst'
INFO: tar: ./usr/lib/python3/dist-packages/gi/module.py: File shrank by 1513 bytes; padding with zeros
INFO: tar: ./usr/lib/python3/dist-packages/gi/overrides/GIMarshallingTests.py: Read error at byte 0, while reading 2242 bytes: Input/output error
INFO: tar: ./usr/lib/python3/dist-packages/gi/overrides/GLib.py: Read error at byte 0, while reading 2560 bytes: Input/output error
INFO: tar: ./usr/lib/python3/dist-packages/pymacaroons/__pycache__/utils.cpython-38.pyc: Read error at byte 0, while reading 3755 bytes: Input/output error
INFO: tar: ./usr/lib/python3/dist-packages/pymacaroons/__pycache__/macaroon.cpython-38.pyc: Read error at byte 0, while reading 3072 bytes: Input/output error
INFO: tar: ./usr/lib/python3/dist-packages/pymacaroons/__pycache__/verifier.cpython-38.pyc: Read error at byte 0, while reading 3072 bytes: Input/output error
INFO: Total bytes written: 2722211840 (2.6GiB, 38MiB/s)
INFO: tar: Exiting with failure status due to previous errors
INFO: cleanup temporary 'vzdump' snapshot
  Logical volume "snap_vm-100-disk-0_vzdump" successfully removed
ERROR: Backup of VM 100 failed - command 'set -o pipefail && tar cpf - --totals --one-file-system -p --sparse --numeric-owner --acls --xattrs '--xattrs-include=user.*' '--xattrs-include=security.capability' '--warning=no-file-ignored' '--warning=no-xattr-write' --one-file-system '--warning=no-file-ignored' '--directory=/var/lib/vz/dump/vzdump-lxc-100-2023_12_31-13_42_48.tmp' ./etc/vzdump/pct.conf ./etc/vzdump/pct.fw '--directory=/mnt/vzsnap0' --no-anchored '--exclude=lost+found' --anchored '--exclude=./tmp/?*' '--exclude=./var/tmp/?*' '--exclude=./var/run/?*.pid' ./ | zstd --rsyncable '--threads=1' >/var/lib/vz/dump/vzdump-lxc-100-2023_12_31-13_42_48.tar.dat' failed: exit code 2
INFO: Failed at 2023-12-31 13:44:00
INFO: Backup job finished with errors
TASK ERROR: job errors

The job fails when GIMarshallingtests.py runs. Any ideas on how to resolve this?

 

[leesteken]

Assuming you did not uninstall/remove python3 while backing up, I would say the drive on which you keep that container is (partially) bad. Check journalctl or Syslog or SMART for more specific error messages.

 

[alexskysilk]

INFO: tar: ./usr/lib/python3/dist-packages/gi/overrides/GLib.py: Read error at byte 0, while reading 2560 bytes: Input/output error

you have underlying disk issues. check dmesg and run a smart test.