Datastore backup Read Objects - TASK ERROR: connection error: not connected on Metadata

[mateusz1234]

If I set my backup to "PBS change detection mode: Metadata" each backup produces "TASK ERROR: connection error: not connected on Metadata". Sample log below:
```
2025-11-24T08:35:02+00:00: starting new backup reader datastore 'backup': "/mnt/backup"
2025-11-24T08:35:02+00:00: protocol upgrade done
2025-11-24T08:35:02+00:00: GET /download
2025-11-24T08:35:02+00:00: download "/mnt/backup/ct/104/2025-11-24T08:31:54Z/root.mpxar.didx"
2025-11-24T08:35:02+00:00: register chunks in 'root.mpxar.didx' as downloadable.
2025-11-24T08:35:02+00:00: GET /chunk
2025-11-24T08:35:02+00:00: download chunk "/mnt/backup/.chunks/f22f/f22f6508c96de601522b795986a28087b85eaef26477d68d20c073088e8ea344"
2025-11-24T08:35:03+00:00: TASK ERROR: connection error: not connected
```
The backup itself still runs fine and is successful but spams my task log:

This is definitely not a network issue as the PBS instance is running inside LXC on the Proxmox VE that itself runs backups to it, so it is full local connection over a bridge interface.
PBS is 4.0.20, PVE is 9.0.11

 

[Chris]

This error is benign, a fix unfortunately not that trivial, see https://forum.proxmox.com/threads/task-error-connection-error-not-connected.158306/post-725328