hi lew
to find out which machine is the one holding up
your network... ( the one timing out )
- open up 2 xterms
-->> - do "df" in one of um ... it should hang if you have
a network problem...
-->> - in the other xterm, "cat /proc/mounts"
- the listing in both xterms should agree
and the next line after the last server listed in df
is the one that is hanging... the one your machine
cannot find
- since you have it hard mounted... you cannot ctrl-C that hung df
process....
- and you'd probably have tons of hung processes ???
( df, ls, ..etc...
( see what is listed with "ps axuw"
- you probably have a bunch of stale mounts and zombies ???
- you should be able to kill all those hung process..maybe not
- easiest way to clean up ...
- send email to all those logged - or -
- shutdown -rf "clean up hung nfs" time+10
- ctrl-C the job .. its just to let them know
the machine is being rebooted ...
- init 1 before the system reboots
- init 3 to bet back online
c ya
alvin
http://www.Linux-1U.net .... 1.6TeraByte 1U Raid5[tm] ... 8x 200Gb each
On Thu, 13 Dec 2001, Lew E. Lefton wrote:
> Hi,
>
> I have been having some problems recently with our NFS setup. My Linux
> clients seem to hang for several minutes and I can't figure out what is
> causing the problem. I know the "can't get a request slot" and "server not
> responding" errors which are appearing in our logs indicate a network
> problem due to RPC timeouts, but, the NFS server does not seem to be
> overloaded and the NFS mounts to Solaris boxes on the same network are not
> having trouble. Our NFS server is running Solaris 8 and the clients are RH
> Linux 7.1. I am running 2.4.9-12 kernel and nfs-utils-0.3.1-13, both
> from Redhat on the client.
>
> I have "direct" nfs mounts in /etc/fstab with options
> rw,nodev,rsize=32768,wsize=32768,hard,intr,actimeo=10
>
> I also have an autofs entry (/home) with options
> rw,nodev,rsize=32768,wsize=32768,actimeo=10
>
> How can I tell what mount is causing the hang? Any other
> troubleshooting suggestions? I am still not able to reproduce the problem
> on demand but it is occurring several times a day.
>
> Thanks in advance for any help. Please reply to me as well as the list.
>
> Cheers,
> Lew Lefton
>
> -----------------------------------------------------------------------
> | Lew Lefton, IT Director | Phone: (404) 385-0052 |
> | School of Mathematics | FAX: (404) 894-4409 |
> | Georgia Institute of Technology | e-mail: [EMAIL PROTECTED] |
> | Atlanta, GA 30332-0160 | http://www.math.gatech.edu/~llefton |
> -----------------------------------------------------------------------
>
>
>
>
>
