I’m running CentOS 6.5 as NFS server (v3 and v4) and exporting Ext4 and XFS filesystem.
After many months that all works fine today the server crash:
Jan 30 09:46:13 qb-storage kernel: ————[ cut here ]———-
That page lists the workaround if you log in, but no “resolution” as yet. Although there are internal Bugzilla ID’s for both 5 and 6
echo 0 >/proc/sys/fs/leases-enable
Il 30/01/2014 13:32, Daniel Bird ha scritto:
Thanks, I have found more information about this:
“To work around this issue, use NFSv3 instead of NFSv4. Alternatively, turn off support for leases by writing 0 to /proc/sys/fs/leases-enable
(ideally on boot, before the nfs server is started). This change prevents NFSv4 delegations from being given out, restore correctness at the expense of some performance.”
I will evaluate if use NFS3 only or apply the trick.
Are these VM’s — did you move the /VM files/ respectively to backup location named as per VM? e.g.:
/CORE business Server
Because it looks like your PowerEdge system chocked and you may have to:
A: get that back online, fire up the systems.. or B: replace C: restor/replace
The errors are pretty obvious to me at first pass — and if I was there I could tell in 5 minutes what is ‘probably’ wrong.. but that’s my first pass at this.
I hope you had some kind of failover/redundancy with the “appliance”
this PowerEdge has a replica of the data on another server.
Do you believe it is a hardware problem and not software?
What makes you think that?
Il 30/01/2014 16:36, Jeffrey Hass ha scritto: