Hello, NFSv3 is know to have stability issues on linux, so by default it
uses NFSv2 wich is more stable but doesn't support files large than 2GB.
As I can see you are using NFSv3. I would recommend you to Try using
NFSv4, the link
http://wiki.linux-nfs.org/wiki/index.php/General_troubleshooting_recommendations
would help on setting this up.
This would help too
http://www.citi.umich.edu/projects/nfsv4/OLS2001/tsld004.htm
I hope this help.
Best regards,
Hello,
we're currently using openvz (2.6.18-128.2.1.el5.028stab064.4) on debian lenny
nodes, with debian lenny or etch VE (kernel was alienized from latest openvz
rpm).
We have an nfs server on a hardware node (so NOT in a VE) which shares some
cartographic datas (means: LOT of small files, aka tiles).
For now, we're mounting NFS shares in VE in this way :
nfs-server:/path/to/share on /path/to/mount/point type nfs
(ro,nfsvers=3,rsize=32768,wsize=32768,hard,proto=tcp,timeo=600,retrans=2,sec=sys,addr=nfs-server)
Share is done as follow :
/path/to/share IP(ro,all_squash,anongid=65534,sync,no_subtree_check)
Problem :
sometimes (well, about once a day, or each two days), nfs share seems to be
stalled. That means :
- unable to access datas from VE
- unable to umount share in VE
The only thing we can do is a restart of the VE.
As far as I can see, the others VE having an nfs share on the same HN don't
have any problem (well, for a while, than it stalls too).
We don't have any logs in syslog nor kern.log, either on HN or in VEs.
NFS-SRV is in a VLAN, and distributes files accross up to 3 VLANS. firewall
rules are correct...
Any idea ?
I've read on wiki that "it's better to mount nfs share on HN, then use a mount -o
bind". We can't afford that, as we need to move VE quiet often, and this without
shutting them down (vzmigrate --online)...
Thank you in advance.
Best regards,
C.
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