How to logging and debug job of proxmox backup client?

[SaymonDzen]

host - Ubuntu 20.04.2 LTS
pbc - 1.0.13
pbs - 1.0.13-1

I ran a test job

proxmox-backup-client backup nextcloud.pxar:/storage --repository 'proxmox@pbs!clientbackup@backup.e:storage'

three hours later the job failed

Found in logs only in syslog pbs

Apr 13 20:34:01 backup proxmox-backup-proxy[764]: backup ended and finish failed: backup ended but finished flag is not set.
Apr 13 20:34:01 backup proxmox-backup-proxy[764]: removing unfinished backup
Apr 13 20:34:01 backup proxmox-backup-proxy[764]: removing backup snapshot "/storage/host/storage/2021-04-13T14:29:50Z"
Apr 13 20:34:01 backup proxmox-backup-proxy[764]: TASK ERROR: backup ended but finished flag is not set.
Apr 13 20:34:01 backup systemd[1]: session-6.scope: Succeeded.
Apr 13 20:34:01 backup systemd-logind[629]: Removed session 6.
Apr 13 20:34:02 backup proxmox-backup-proxy[764]: POST /dynamic_chunk: 400 Bad Request: backup already marked as finished.
Apr 13 20:34:02 backup proxmox-backup-proxy[764]: POST /dynamic_chunk: 400 Bad Request: backup already marked as finished.
Apr 13 20:34:02 backup proxmox-backup-proxy[764]: POST /dynamic_chunk: 400 Bad Request: backup already marked as finished.

also, despite the fact that the log reported about the deletion of an unsuccessful backup, a directory remained on the file system

du -shx /storage/.chunks/
476G    /storage/.chunks/

The documentation says that json output is supported. But it is not clear where he will write. I did not find the corresponding key in the client's parameters.

 

[fabian]

you can add --verbose to the client command to get more output. once the backup starts, you should see a corresponding task running on the PBS server side as well which you can monitor for information.