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[Bug 1019938] Re: SettingUpNFSHowTo possible mistake
Please note that the page in question is a wiki page which anybody can edit - including you. ;-)
Since you seem to know how it should be changed, it would be great if you could fix it.
Due to the nature of the community help wiki, you can't request changes
to it in the form of bug reports.
** Changed in: ubuntu-docs (Ubuntu)
Status: New => Invalid
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SettingUpNFSHowTo possible mistake
Status in “ubuntu-docs” package in Ubuntu:
In "NFSv4 client" section, "Note that nfs-server:/export is not
necessary in NFSv4" is probably not true.
I have a 32 nodes KVM cluster. NFS, host filesystem, KVM storage pool,
are all placed on SSD. KVM guests are connected to host through virtio
drived GB ethernet.
I followed this guide to configure NFS:
The problem was that, when I execute a program simultaneously (through
cssh) on 32 nodes, there were always a number of nodes that
encountered "input/output error". The /var/log/messages on client
shows "state manager failed on NFSv4 server with error 10022".
Interestingly, by changing the item in /etc/fstab from:
some-host:/some-dir /nfs nfs rw,bg,hard,intr 0 0
some-host:/export/some-dir /nfs nfs rw,bg,hard,intr 0 0
fixed the problem.
I don't know how exactly this happens. It's probably caused by some problem in NFS server when it tries to find the right path when all 32 clients are trying to mount NFS at the same time.
It's probably a bug in NFS but before it is fixed in NFS, should the Wiki give the instruction that /export is necessary?
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