error with NFS

[Michael Allmer]

This morning I came in and found that one of my NFS servers was not repsonding.
I attempted to stop and restart the NFS Server.
From this I recieved the error that /etc/xtab cannot be open or locked.

I then ran fuser on /etc/xtab and killed the process associated with it, which was me running exportfs, just a moment before.

Now I show that NFS is runing , and even from some clients shoumount -e greta shows the correct list of exported file systems.

Any other suggestions?

[George Liu_4]

which OS and post ps -ef too

[Geoff Wild]

If it is still not responding...then...

/sbin/init.d/nfs.client stop
/sbin/init.d/nfs.server stop
/sbin/init.d/nfs.core stop

ps -ef |grep nfs

anything? try to kill them...

All gone?

Restart nfs:

/sbin/init.d/nfs.core start
/sbin/init.d/nfs.server start
/sbin/init.d/nfs.client start


Still not working?

Alas, you may have to reboot :(

Rgds...Geoff

[Michael Allmer]

OS HPUX 11.00

I am going to stop the NFS client, server and core and the bring them bakc up after check to see if all NFS processes are closed.

[Dave Olker]

Hi Mike,

If the clients are able to issue a "showmount -e" and get the correct list of exported filesystems, what are the clients not able to do? Actual NFS requests? The showmount command would only talk to the portmapper and rpc.mountd on the server so the nfsd daemons might still be blocked.

Please explain what works and what doesn't. Also explain if the clients are using UDP or TCP to access the NFS filesystems? Are you able to successfully terminate and restart the nfsd daemons? Do all the clients hang with this server or only a subset of clients?

Regards,

Dave

[Steven E. Protter]

Shalom,

In addition, check /var/adm/syslog/syslog.log on the server and look for error messages to help find the cause of the problem.

If an 11.00 server lost networking due to the switch losing power or a cable disconnect it may not be able to recover and may require a reboot.

SEP

[Michael Allmer]

This ended up due to a disk starting to fail.
Thank you for everyone's thoughts.

[Michael Allmer]

Thank to everyone