topic Re: nfs client hangs in Operating System - HP-UX

nfs client hangs

Cristian_4 — Sun, 03 Jul 2005 10:26:42 GMT

i have a problem with a version 11.0

the nfs client hangs after a while, if i reboot the ws the problem appears again and the users cant login because they cant load their home, i cant do a bdf also, it hangs forever

Re: nfs client hangs

Cristian_4 — Sun, 03 Jul 2005 10:38:51 GMT

more info

after a while i get a

bdf: file system serverX:/user1 mounted on /home/user1 is not responding

nslookup is ok and i can ping without problems

Re: nfs client hangs

Bill Hassell — Sun, 03 Jul 2005 10:47:31 GMT

NFS is critically dependent on the server, and since it is a filesystem, it is a part of HP-UX filesystems. When the server is dead, your clients will hang. There isn't an easy way to fix your client. bdf hangs because it is checking all the mounted filesystems. Logins will hang because part of the login is to check disk quiaotas on all disks. You have to fix your server. ping and telnet to the server do not verify that NFS is working. Your server needs to be fixed (assuming you don't have a router that has denied NFS ports)

Re: nfs client hangs

saju_2 — Sun, 03 Jul 2005 11:05:21 GMT

Hi crisrian

Have you tried exportfs -a
This one will read /etc/exports and will do a nfsmount.

regards
CS

Re: nfs client hangs

Cristian_4 — Sun, 03 Jul 2005 11:44:58 GMT

ok that's what i thought , server failing, but the only client failing is that one, the rest of the clients in the same subnet doesnt have any problems with the same server

besides, the faulty client have more nfs servers and it seems that all of them are failing which is very unlikely

so, i think it's a problem of the nfs client, not the server, but im not sure where to look to find the problem.

the only error in the syslog is

telnetd[12374]: Error checking child termination status: error 4: Interrupted system call

which is probably related

Re: nfs client hangs

Eknath — Sun, 03 Jul 2005 12:14:57 GMT

Hi Cristian,

As you said it may be because you have too many NFS mount in the client.

You may visit
http://www1.itrc.hp.com/service/cki/patchDocDisplay.do?patchId=PHNE_32477

and

http://www1.itrc.hp.com/service/cki/patchDocDisplay.do?patchId=PHNE_16000

and check if any patches are required

Cheers!!!
eknath

Re: nfs client hangs

Cristian_4 — Sun, 03 Jul 2005 13:57:56 GMT

could be, but this didnt happen before.

it started like 3 days ago, there are no new software, more users, etc. same thing as always

there was only 1 issue strange, after the first reboot there was a user with 24000hrs of idle time, considering that the nfs.client server had 1 hr of uptime, no idea how that happened.