[pbs-devel] [PATCH proxmox] s3 client: fix invalid request for empty delete_objects call

[Christian Ebner]

On 7/23/25 11:15 AM, Christian Ebner wrote:
> The s3 client's object_delete method does not correctly handle cases
> where an empty list of object keys is passed via the parameters,
> resulting in an `invalid request` error.
> 
> Handle this by early returning in case of an empty list, thereby also
> skipping the unneeded api request altogether.
> 
> This indirectly fixes the snapshot directory cleanup for
> proxmox-backup-client benchmark or aborted backups, where no objects
> have been persisted to the object store within the snapshot prefix
> yet, therefore trying to delete the empty list.
> 
> Reported-by: Dominik Csapak <d.csapak at proxmox.com>
> Signed-off-by: Christian Ebner <c.ebner at proxmox.com>
> ---

Forgot to include the independent report of the same issue by Lukas, 
which was however incorrectly diagnosed as an of out-of-storage-space issue.

Therefore, please include also:

Reported-by: Lukas Wagner <l.wagner at proxmox.com>