[SOLVED] backups to pbs works, but no Contents on pbs visible

[uldise]

make another datastore on a local filesystem

i just tested backup with locally created datastore, and it works as expected..
so.. what's wrong with NFS? hmm..

 

[dcsapak]

what kind of filesystem is under the nfs? and what os runs the nfs server?

 

[uldise]

what kind of filesystem is under the nfs? and what os runs the nfs server?

NFS server is on unraid, filesystem for these drives is BTRFS..

 

[dcsapak]

i have the suspicion it's this bug: https://bugzilla.proxmox.com/show_bug.cgi?id=2915
but that does not really make sense with your configuration... (btrfs can do that)

i'm currently writing a fix for that

 

[dcsapak]

also could you try the strace again , but with the '--no-abbrev' option, so:

strace -fyy --no-abbrev -p <pid-of-proxy>

?
that would be good to verify if it's that bug or not

 

[uldise]

strace -fyy --no-abbrev -p <pid-of-proxy>

see attached:

 

[dcsapak]

ok thanks, that confirms it's that bug:

{d_ino=4294967295, d_off=160, d_reclen=24, d_type=DT_UNKNOWN, d_name="ct"}

shows 'd_type=DT_UNKNOWN'

 

[uldise]

just for reference - i mounted the same path on server via CIFS, and looks like it works as expected..
are there any pros or cons using CIFS over NFS? as far as i know, CIFS should be much slower.. not sure how it affects pbs scenario..

 

[dcsapak]

both cifs and nfs as pbs datastore are not really recommended (it adds latency which will decrease performance significantly in contrast to local storage), but none of those is better than the other...
strange that it only occurs on nfs though. maybe it's some special configuration of the nfs server on the unraid side?
anyway, i sent fixes recently[0] and they got applied, so this error shouldn't happen with the next round of updates anymore

0: https://lists.proxmox.com/pipermail/pbs-devel/2022-June/005270.html

 

[uldise]

so this error shouldn't happen with the next round of updates anymore

will it be sufficient to update pbs only, when update arrives?

 

[dcsapak]

yes

 

[uldise]

and in which package should the update take? i'm still watching for this fix..

 

[dcsapak]

it should be in 'proxmox-backup-server' version 2.2.4-1 (or greater)

 

[uldise]

thanks!
i just tested my original configuration with NFS, and now looks like it works as expected - i can see backup contents on both sides - pbs and pve.