topic Re: NFS issue in Operating System - HP-UX

NFS issue

Ron Irving — Tue, 23 Jun 2009 11:23:53 GMT

Good morning!!

I have an NFS share between 2 PA-RISC servers. Every day my dmesg reports RPC: Timed out.

NFS readdir failed for server localhost: RPC: Timed out
NFS readdir failed for server localhost: RPC: Timed out
NFS lookup failed for server localhost: RPC: Timed out
NFS lookup failed for server localhost: RPC: Timed out
NFS lookup failed for server localhost: RPC: Timed out
NFS lookup failed for server localhost: RPC: Timed out
NFS lookup failed for server localhost: RPC: Timed out
NFS readdir failed for server localhost: RPC: Timed out
NFS readdir failed for server localhost: RPC: Timed out

Any ideas? More information available upon request!!!

thank you!!!

Re: NFS issue

Ron Irving — Tue, 23 Jun 2009 11:43:36 GMT

more info:

This is actually between 3 servers. /backup directory exists on rp7410, and exported to 2 rp8420's, (production, and DR.) Only the production server is having issues.

There is a CIFS share on the production server as well.

Re: NFS issue

Sunny123_1 — Tue, 23 Jun 2009 11:45:16 GMT

Hi

I think it is the network issue check your network settings in both the server.

Regards
Sunny

Re: NFS issue

Patrick Wallek — Tue, 23 Jun 2009 11:54:50 GMT

>>Every day my dmesg reports RPC: Timed out.

Are you absolutely certain that it reports this every day? Or do you just type 'dmesg' and see the same output every day?

You must remember that dmesg is just a circular buffer and has no time stamp information whatsoever. You could potentially be seeing the exact same messages every time you type 'dmesg'.

Have you check /var/adm/syslog/syslog.log? Are there any messages there? What are the date/time stamps on those?

How are your NFS shares behaving? Can you get to all of your NFS mount points?

Re: NFS issue

Ron Irving — Tue, 23 Jun 2009 12:00:40 GMT

Good point on the dmesg...duh..

Anyway, I scoured the syslog.log, and found the 1st instance of that happened yesterday at 10:11AM.

un 22 10:11:02 rp8420 vmunix: NFS readdir failed for server localhost: RPC: Timed out
Jun 22 10:11:04 rp8420 avrd[2059]: sctl driver not installed or not configured, using normal open() for scanning
Jun 22 10:11:30 rp8420 vmunix: NFS lookup failed for server localhost: RPC: Timed out
Jun 22 10:11:23 rp8420 vmunix: NFS readdir failed for server localhost: RPC: Timed out
Jun 22 10:11:54 rp8420 ftpd[13947]: Data port : 20
Jun 22 10:11:33 rp8420 vmunix: NFS lookup failed for server localhost: RPC: Timed out
Jun 22 10:11:54 rp8420 above message repeats 4 times

Same thing at 10:12, then again at 4:32 this morning.

Re: NFS issue

Ron Irving — Tue, 23 Jun 2009 12:14:45 GMT

And, yes, the directory is mounted, and seems to be accessable. I'm just concerned that when we do an unattended backup, something will chirp, and we won't get a complete one.

Re: NFS issue

Ron Irving — Wed, 24 Jun 2009 12:09:50 GMT

Hi again!!

Any ideas yet kids?

Re: NFS issue

Patrick Wallek — Wed, 24 Jun 2009 13:19:40 GMT

It appears to me to be a somewhat transient network issue. When does this occur? Is there high network usage at that time?

Re: NFS issue

Ron Irving — Wed, 24 Jun 2009 13:24:55 GMT

There is a common time of 4:32AM for today and yesterday. Monday was at 10:11, and 10:12AM. Not sure if there were any network issues for those times. I'll have to check with the Network Dungeon Master.

Re: NFS issue

Ron Irving — Thu, 25 Jun 2009 10:09:04 GMT

Hmmmm...checked syslog this morning...exactly 4:32AM again. It only happens on our production server, not the DR. Perplexing.