On Thu, Jul 17, 2014 at 10:40:14AM +0000, philippe.simo...@swisscom.com wrote: > I have a problem using btrfs/nfs to store my vmware images. [snip] > - vmware is basing its NFS files locks on the nfs fileid field returned from > a NFS GETATTR request for the file being locked > > http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1007909 > vmware assumes that these nfs fileid are unique per storage. > > - it seemed that these nfs fileid are only unique 'per-subvolume', but > because my nfs export contains many subvolumes, > the nfs export has then my files (in different subvolume) with the same nfs > fileid. > > - no problem when I start all machine alone, but when 2 machines are running > at the same time, vmware seems to mix its reference to lock file and > sometimes kills one vm. > > in esx server, following messages : /var/log/vmkwarning.log : > > 2014-07-17T06:31:46.854Z cpu2:268913)WARNING: NFSLock: 1315: Inode > (Dup: 260 Orig: 260) has been recycled by server, freeing lock info for > .lck-0401000000000000 > 2014-07-17T06:34:47.925Z cpu2:114740)WARNING: NFSLock: 2348: Unable to > remove lockfile .invalid, not found > 2014-07-17T10:18:50.320Z cpu0:32824)WARNING: NFSLock: 2348: Unable to > remove lockfile .invalid, not found > > and in machine log : > Message from sncubeesx02: The lock protecting vm-w7-sysp.vmdk > has been lost, > possibly due to underlying storage issues. If this virtual > machine is configured to be highly > available, ensure that the virtual machine is running on some > other host before clicking OK. > > - vmware try to make its own file locking for flowing file type : > > http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=10051 > > VMNAME.vswp > DISKNAME-flat.vmdk > DISKNAME-ITERATION-delta.vmdk > VMNAME.vmx > VMNAME.vmxf > vmware.log > > Is there a way to deal with this problem ? is that a bug ?
Add an arbitrary and unique "fsid=0x12345" value to the exports
declaration. For example, my server exports a number of subvolumes
from the same FS with:
/srv/nfs/nadja -rw,async,fsid=0x1729,no_subtree_check,no_root_squash \
10.0.0.20 fe80::20
/srv/nfs/home -rw,async,fsid=0x1730,no_subtree_check,no_root_squash \
fe80::/64
/srv/nfs/video -ro,async,fsid=0x1731,no_subtree_check \
10.0.0.0/24 fe80::/64
Hugo.
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