On 25/09/2021 06:42, Ed Greshko wrote:
On 25/09/2021 13:04, Terry Barnaby wrote:
Hi,
I use NFS mount (defaults so V4) /home directories with a simple
server over Gigabit Ethernet all running Fedora33. This has been
working fine for 25+ years through various Fedora versions. However
in the last month or so all of the client computers are getting KDE
GUI lockups every few hours that last for around 40 secs. /home is
not accessible during this time and it feels/looks to be an NFS
lockup issue. There are no "NFS server no responding" or such like
messages in either the servers or clients /var/log/messages and the
network communications seems fine.
1. Have there been some changes to NFS recently in the kernel ?
2. Any idea where to begin to try and debug this ?
Thanks for the reply:
A few questions.
1. Are you saying your NFS server HW is the same for the past 25
years. Couldn't have been all Fedora, right?
No ( :) ) was using previous Linux and Unix systems before then.
Certainly OS versions and hardware has changed over the years but setup
is the same and no hardware changed in that last couple of years
certainly no hardware/software changes in the last couple of months when
the problem started to occur apart from Fedora33 updates.
2. How many clients? Connected on a single or multiple switches?
5 clients, two switches, but clients on the single switch to the server
have the issue as well as others. Pings still operate in locked up
condition.
3. Do the lockups happen during a given time of day, or random?
They appear to be random although they appear more frequently when first
logging in (more /home accesses then ?).
4. Have you checked for possible disk errors on the server?
No disk related error messages and RAID file systems show as ok.
Smartctl shows no issue on disks.
_______________________________________________
users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
