error on cifs attached datastore

[macor64]

So with the release of PBS "stable". I loaded a vm and mounted a cifs volume from my synology nas. I was able to configure and run backups to the datastore with no problems. When I tried running a manual garbage collection from the gui, I got the following error:

2020-11-16T18:46:39-05:00: TASK ERROR: unable to get exclusive lock - EACCES: Permission denied

when I tried running it from CLI, It asked for my root password and then I got:

starting garbage collection on store macvault
TASK ERROR: unable to get exclusive lock - EACCES: Permission denied

I rebooted, tried again and after supplying my password;

root@pxbs:~# proxmox-backup-client garbage-collect --repository macvault
Password for "root@pam": *********
starting garbage collection on store macvault
Start GC phase1 (mark used chunks)
percentage done: phase1 2% (1 of 45 index files)
percentage done: phase1 4% (2 of 45 index files)

So, I'm scratching my head as to why I'm getting an error and what i can do to resolve it permanently.

Thoughts?

Thanks

 

[wolfgang]

Hi,
I guess the client cache setting is wrong,
Do to use any client cache for NFS and CIFS.

 

[ajeffco]

Would that be the "forcedirectio" mount option?

 

[wolfgang]

To answer this question can you please send your mount options.

mount | grep <mountpoint>

 

[abzsol]

Hi, we have the same problem using synology share, here is my /etc/fstab:

//192.168.6.12/pbs01_be****     /mnt/pbs01_be****       cifs    uid=34,noforceuid,gid=34,noforcegid,credentials=/root/.smbcredential,iocharset=utf8,vers=3.0,noperm,cache=none 0 0
//192.168.6.12/pbs01_abz     /mnt/pbs01_abz       cifs    uid=34,noforceuid,gid=34,noforcegid,credentials=/root/.smbcredential,iocharset=utf8,vers=3.0,noperm,cache=none 0 0

as you can see i tried adding cache=none but after a backup same error.

This is what a mount | grep <mountpoint> gives:

//192.168.6.12/pbs01_be**** on /mnt/pbs01_be**** type cifs (rw,relatime,vers=3.0,cache=none,username=admin,uid=34,noforceuid,gid=34,noforcegid,addr=192.168.6.12,file_mode=0755,dir_mode=0755,soft,nounix,serverino,mapposix,noperm,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=60,actimeo=1)

 

[abzsol]

@wolfgang Any suggestions to the above problem?

Thanks

EDIT: updated from 1.0-1 to 1.0-5, launched the GC and works. Don't know if the update restarted some services. Will wait next schedule tonight

 

[ShagoY]

@abzsol Are you able to delete/check your snapshots on a nfs mount with your configuration? In short, are you encountering problems ?

 

[abzsol]

@abzsol Are you able to delete/check your snapshots on a nfs mount with your configuration? In short, are you encountering problems ?

hi @ShagoY . didn't tried NFS, but CIFS keeps getting error on Garbace Collector. i need to reboot PBS and do garbage collector manually before the next backup starts