[SOLVED] PBS connection problem - timeout issue?

[Waschbüsch]

Hi there,

I noticed that sometimes backups will just fail with either of two messages:

Error: permission check failed.

or

401 Unauthorized

The problem is that this occurs randomly with some VM backups while others just run.

If I test the backup storage from a PVE node, by executing this mulitple times in a row:

root@srv05:~# pvesm status --storage pbs

It mostly works and show the correct info:

Name Type Status Total Used Available %
pbs pbs active 7540842112 3186444544 4354397568 42.26%

but here also I randomly get

proxmox-backup-client failed: Error: permission check failed.

or sometimes

pbs: error fetching datastores - 401 Unauthorized

When either of the two errors occur, the command always takes a little longer before it returns anything, so my current assumption is that there might be some sort of timing / timeout issue?

Admittedly, I upgraded the PVE node where PBS is installed along with the rest of the cluster to PVE 7, so it might just be that. But maybe someone else has seen this behavior before?

 

[Waschbüsch]

If someone can move this to the non-national forum? I posted in this one by mistake. Sorry. ;-)

 

[fabian]

Hi there,

I noticed that sometimes backups will just fail with either of two messages:


or

The problem is that this occurs randomly with some VM backups while others just run.

If I test the backup storage from a PVE node, by executing this mulitple times in a row:

It mostly works and show the correct info:

but here also I randomly get

or sometimes

When either of the two errors occur, the command always takes a little longer before it returns anything, so my current assumption is that there might be some sort of timing / timeout issue?

no, that is just the brute-force mechanism being triggered and adding a delay to unauthorized requests

Admittedly, I upgraded the PVE node where PBS is installed along with the rest of the cluster to PVE 7, so it might just be that. But maybe someone else has seen this behavior before?

it's a bug - already fixed in git: https://lists.proxmox.com/pipermail/pbs-devel/2021-July/003653.html

 

[Waschbüsch]

no, that is just the brute-force mechanism being triggered and adding a delay to unauthorized requests

it's a bug - already fixed in git: https://lists.proxmox.com/pipermail/pbs-devel/2021-July/003653.html

Ah - thread safety... I see. Perfect. Thanks for letting me know!

 

[Waschbüsch]

PBS v2.0 seems to come with the fix Fabian mentioned. No more issues so far.
Marking as solved.