Hi ,
Thank you for your feedback . It seems the error related to the fstrim run once a week (
default ) .
Do you have more information about the NBD/XFS memeory pressure issues ?
Thanks
-----Message d'origine-----
De : Jason Dillaman <jdillama(a)redhat.com>
Envoyé : mardi 5 janvier 2021 14:42
À : Wissem MIMOUNA <wissem.mimouna(a)fiducialcloud.fr>
Cc : ceph-users(a)ceph.io
Objet : Re: [ceph-users] Timeout ceph rbd-nbd mounted image
You can try using the "--timeout X" optional for "rbd-nbd" to increase
the timeout. Some kernels treat the default as infinity, but there were some >=4.9
kernels that switched behavior and started defaulting to 30 seconds. There is also known
issues with attempting to place XFS file systems on top of NBD due to memory pressure
issues.
On Tue, Jan 5, 2021 at 4:36 AM Wissem MIMOUNA <wissem.mimouna(a)fiducialcloud.fr>
wrote:
Hello ,
Looking for information about a timeout which occur once a week for a ceph rbd image
mounted on a machine using rbd-nbd (Linux Ubuntu machine).
The error found in 'dmseg' is below :
[798016.401469] block nbd0: Connection timed out [798016.401506] block
nbd0: shutting down sockets
Many Thanks
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--
Jason