[pbs-devel] Some problems with fullstorage and cleanup

[Fabian Grünbichler]

On August 31, 2020 1:14 pm, Harald Leithner wrote:
> Hi,
> 
> my test stroage run out of diskspace.
> 
> This happens at Version 0.8-11
> 
> I tried to forget the olders snapshots but this doesn't change the disk
> usage. After this I started a manual GC (I assume it's garbage
> collection). It failed after phase one with an error message. I didn't
> copied the error message... (I miss the log panel in the gui).
> 
> I also configured GC and Prune Schedules at the same time and told the
> vm that backups to the pbs to keep only 20 copies.
> 
> After a while I came back to the gui and has only 3 snapshots left and
> one backup in progress (Thats maybe correct because of 1 yearly 1
> monthly 1 daily and 2 last).
> The Statistics Tab still says 100% usage and "zfs list" lists the same
> usage.
> 
> Starting now a manual GC ends in the error message:
> 
> unable to parse active worker status
> 'UPID:backup-erlach3-test:00000400:0000036A:00000000:5F4CD753:termproxy::root:'
> - not a valid user id

this was a known issue that should be fixed on upgrade to 0.8.11-1. can 
you run 'grep termproxy /var/log/apt/term.log' on the PBS server?

you can fixup the task index by running the sed command from 

/var/lib/dpkg/info/proxmox-backup-server.postinst

which replaces the invalid user 'root' with the correct 'root at pam'

> maybe because a backup is running?
> 
> Is there a way to give the unused diskspace free manually?

GC is the way to go, after fixing the issue above. note that only chunks 
older than 24h (or since the least recent, still running backup if that 
is even longer ago) will be GCed.

> thx
> 
> Harald