UNSUBSCRIBE 2012/7/6, Song Gao <[email protected]>: > OK. A feedback from NFS community indicates that, the reason why > replacing /some-dir with /export/some-dir solved the problem was that, > NFSv4 client failed to find the right path on NFS server, so it fell > back to NFSv2. > > However, in the reply from mail list(http://www.spinics.net/lists/linux- > nfs/msg31326.html ), Bruce also mentioned an outdated part in this > document. Following is the quoted text: > >> The advice to use "fsid=0" in the ubuntu howto is out of date. With a >> recent server you should just export and mount /export/tigers as you >> would with NFSv3. > > -- > You received this bug notification because you are subscribed to ubuntu- > docs in Ubuntu. > https://bugs.launchpad.net/bugs/1019938 > > Title: > SettingUpNFSHowTo possible mistake > > Status in “ubuntu-docs” package in Ubuntu: > New > > Bug description: > 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: > https://help.ubuntu.com/community/SettingUpNFSHowTo > > 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 > into: > 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? > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/ubuntu-docs/+bug/1019938/+subscriptions >
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019938 Title: SettingUpNFSHowTo possible mistake To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-docs/+bug/1019938/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
