From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Kent <raven@themaw.net>
Subject: Re: clients suddenly start hanging (was: (no subject))
Date: Thu, 19 Jun 2008 11:14:34 +0800
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To: Jim Carter <jimc@math.ucla.edu>
Cc: autofs@linux.kernel.org


On Wed, 2008-06-18 at 17:40 -0700, Jim Carter wrote:
> The edited patch set went on with no problems and compiled cleanly; the
> module works normally. 

Thanks for your perseverance with this Jim.

>  
> 
> I rebuilt the daemon with these patches: 
> autofs-5.0.2-dns-name-lookup.patch
> autofs-5.0.3-dont-fail-on-empty-master-fix-2.patch
> autofs-5.0.3-mount-thread-create-cond-handling.patch
> autofs-5.0.3-mount-thread-create-cond-handling-fix.patch
> autofs-5.0.3-dont-abuse-ap-ghost-field.patch
> autofs-5.0.3-submount-shutdown-recovery-7.patch
> 
> At first I thought it was still failing as before, but on looking more
> closely at the output I see a new behavior which is much better than 
> failing.  After 35 minutes and about 1200 mount/unmount cycles, it took
> over 25 seconds to mount (and readdir) 12 filesystems distributed over
> 6 machines.  2 minutes later these all had been mounted, and 4 
> filesystems on 2 other machines were stuck.  7 minutes later these were
> finished and 5 filesystems on one machine were stuck.  This continued
> (12 groups total) until I stopped the test 30 mins later.  Syslog (debug
> priority) had not a single line from autofs or NFS for the entire 
> period.

Sorry, I'm not entirely clear on what you described here.
Are you saying that there were no hangs but you observed only, what
appeared to be, significant delays.

I also saw this but only occasionally and only for fairly brief times.
 
Ian