[K12OSN] NFS help

[Shawn Powers]

Well, today was as close to a "meltdown" as I care to get...

it turns out that rpc.lockd is failing, because rpc.statd is dying  
for some unknown reason.  I manually started rpc.statd, and my  
clients are (mostly) working, except for some OO2 clients that are  
having problems with file locking errors, and "hung" applications.

Is there a file limit (ie, number of files) that might cause an NFS  
server to struggle?  I think my file server is housing 8 millionish  
files, although they're obviously not all served at once.  My hard  
drive is partitioned with ext3.

I'm really grasping at straws, and I'm not sure what to try next.   
I'll be here this evening working on it, but it generally only shows  
it's ugly teeth under the load of 300 computers hitting it.

If nothing else, please wish me luck.

-Shawn


On Jan 3, 2007, at 11:10 AM, Shawn Powers wrote:

> I've been using NFS for years, and it's been great.  Our recent  
> increase in clients (both thin and other) has caused, problems...
>
> I think I'm running out of file locks, or having too many open  
> files, or too many threads (yeah, I'm completely guessing what I'm  
> running out of), or something.
>
> Could someone point me in the right direction to diagnose, and  
> hopefully fix NFS?
>
> The symptoms are:
>
> 1) Programs on thin clients for users with NFS home directories  
> don't open, they just sorta hang and hang.  Sometimes they'll start  
> after 10 minutes.
>
> 2) double clicking a file in nautilus will sometimes open the file  
> (in openoffice), but then nautilus will hang.
>
> 3) on my OSX clients, Microsoft Word complains that either a file  
> is locked, or it can't lock a file -- both errors are common.
>
> If I try to:
>
> service nfs restart
>
> the part that says, "Shutting down NFS daemon:     FAILED" always  
> comes up, but then further down it says, "Starting NFS daemon:     
> SUCCESS"
>
> I can't find any useful errors, but rebooting the NFS server does  
> fix the problem for a while.  It first, of course, locks up every  
> client unless they've logged out, so it's not a great solution, and  
> was not a great way to start the year. :)
>
> Thanks for any insight,
> -Shawn
>
>
> --
> Shawn Powers
> Technology Director
> Inland Lakes Schools
> PHN: 231-238-6868 x9174
> FAX: 509-356-7024
> spowers at inlandlakes.org
> Work Website: http://techcorner.inlandlakes.org
> Personal Blog: http://www.brainofshawn.com
>
> --<Disclaimer, now required for frustrating reasons>--
> The views, opinions, visions, thoughts, comments,
> sarcastic whims, forecasts, poetic outbursts,
> cynical wit, future plans, implementation ideas,
> OS preference, curricular insight, ice cream preference,
> or anything else I might infer are not the
> views of Inland Lakes Schools.  Pretty much everything
> I say, do, think, or imply with punctuation should be
> considered my own delusions, and ignored completely.
>
>
>
>
>
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--
Shawn Powers
Technology Director
Inland Lakes Schools
PHN: 231-238-6868 x9174
FAX: 509-356-7024
spowers at inlandlakes.org
Work Website: http://techcorner.inlandlakes.org
Personal Blog: http://www.brainofshawn.com

--<Disclaimer, now required for frustrating reasons>--
The views, opinions, visions, thoughts, comments,
sarcastic whims, forecasts, poetic outbursts,
cynical wit, future plans, implementation ideas,
OS preference, curricular insight, ice cream preference,
or anything else I might infer are not the
views of Inland Lakes Schools.  Pretty much everything
I say, do, think, or imply with punctuation should be
considered my own delusions, and ignored completely.