RH 9 automount resets and cron.daily

[Rick Stevens]

Chiu, PCM (Peter) wrote:
> Thanks, Rick,
> 
> The auto.master contains the switch --timeout=300.
> 
> That means it should timeout every 5 minutes, after that,
> the client will umount an idle nfs file system.
> 
> But what I don't quite follow is that why the automount reset at
> 04:02:00 every day?
> 
> I have seen this on more than one systems that have unrelated NFS
> file systems served with automout.  
> 
> Their system logs record the same automout reset at the same time?

Do they all use the same NFS server?  If so, have you checked that
server to see if there's something going on at that time that may cause
it to reset or dump NFS clients?  It might even be something as
seemingly innoucuous as a log being rotated.

> -----Original Message-----
> From: Rick Stevens [mailto:rstevens at vitalstream.com] 
> Sent: 17 March 2004 18:00
> To: Getting started with Red Hat Linux
> Subject: Re: RH 9 automount resets and cron.daily
> 
> 
> Chiu, PCM (Peter) wrote:
> 
>>In the system log file /var/log/messages, there are repeating messages 
>>at
>>
>>04:02:00 systemx rpc.mountd: authenticated mount request from machinex
>>for /disks/folderx
>>
>>and on the client that has a NFS file system automounted,
>>
>>04:02:00 systemy automount:[pid]: attempting to mount entry 
>>/disks/folderx 04:06:34 systemy automount:[pid]: expired 
>>/disks/folderx
>>
>>Can anyone tell me why the automounted file systems gets reset and 
>>needs
>>to be remounted
>>at that time of the day?
>>
>>The only possibly clue I can find is relating to cron.daily, but 
>>cannot
>>pinpoint what that is.
>>
>>This has been  causing undesireable resets on the file systems.
> 
> 
> The problem is on the client's automount config.  Check the 
> /etc/auto.master file for the various options on the filesystem that's
> mounted--particularly any "timeo" or "timeout" values.
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -   "Do you suffer from long-term memory loss?"  "I don't remember"  -
> -                            -- Chumbawumba, "Amnesia" (TubThumping) -
> ----------------------------------------------------------------------
> 
> 
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-- 
----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-           Vegetarian:  Old Indian word for "lousy hunter"          -
----------------------------------------------------------------------