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* 'random' diskless clients hangs
@ 2003-09-03  9:26 Robert Heessels
  2003-09-03 18:02 ` Steve Dickson
  0 siblings, 1 reply; 15+ messages in thread
From: Robert Heessels @ 2003-09-03  9:26 UTC (permalink / raw)
  To: nfs

Hello,

We have a setup with a NFS V3 Fileserver and diskless clients all running
Red Hat 7.3.

All clients run fine for days at a time, but every now and then a client
hangs. Most of the time the process that is porbably causing the hang is
either rhn_check (from Red Hat Network) or httpsd with user psaadm (from
Plesk 6.0.1).

Since we are new to NFS we're not sure how to track down this problem. Any
help would be VERY much appreciated!

Kind regards,

Robert Heessels
Alphamega




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^ permalink raw reply	[flat|nested] 15+ messages in thread
* 'random' diskless clients hangs
@ 2003-09-03  9:33 nfsmailinglist
  2003-09-03 19:03 ` Bernd Schubert
  0 siblings, 1 reply; 15+ messages in thread
From: nfsmailinglist @ 2003-09-03  9:33 UTC (permalink / raw)
  To: nfs

Hello,

We have a setup with a NFS V3 Fileserver and diskless clients all running
Red Hat 7.3.

All clients run fine for days at a time, but every now and then a client
hangs. Most of the time the process that is porbably causing the hang is
either rhn_check (from Red Hat Network) or httpsd with user psaadm (from
Plesk 6.0.1).

Since we are new to NFS we're not sure how to track down this problem. Any
help would be VERY much appreciated!

Kind regards,

Robert Heessels
Alphamega




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Welcome to geek heaven.
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_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/nfs

^ permalink raw reply	[flat|nested] 15+ messages in thread
[parent not found: <482A3FA0050D21419C269D13989C6113D06C13@lavender-fe.eng.netapp.com>]
* RE: 'random' diskless clients hangs
@ 2003-09-05 19:49 Dennis, Richard
  2003-09-06  6:44 ` nfsmailinglist
  0 siblings, 1 reply; 15+ messages in thread
From: Dennis, Richard @ 2003-09-05 19:49 UTC (permalink / raw)
  To: nfs

Anything in the logs?  You might consider increasing the debugging output by
echoing into /proc/sys/sunrpc/*

-----Original Message-----
From: nfsmailinglist@heessels.com [mailto:nfsmailinglist@heessels.com] 
Sent: Friday, September 05, 2003 3:14 PM
To: nfs@lists.sourceforge.net
Subject: RE: [NFS] 'random' diskless clients hangs


AMAZING: I switched the server from UDP to TCP... same crashes... :-(

There is only 1 server and 2 clients in the setup. All connected via eth1
100Mbps through a Cisco switch. No other traffic on this switch. Here are
the stats you requested... normal results?

[root@blue root]# nfsstat -c
Client rpc stats:
calls      retrans    authrefrsh
1119581    5          0


[root@aqua pxelinux.cfg]# netstat -s
Ip:
    42501380 total packets received
    0 forwarded
    0 incoming packets discarded
    42501269 incoming packets delivered
    29067258 requests sent out
    5 reassemblies required
    2 packets reassembled ok
    468 fragments created


-----Original Message-----
From: Lever, Charles [mailto:Charles.Lever@netapp.com]
Sent: vrijdag 5 september 2003 21:02
To: nfsmailinglist@heessels.com
Subject: RE: [NFS] 'random' diskless clients hangs


is your network clean?  UDP is pretty sensitive to
networking problems -- look for reassembly errors
in 'netstat -s', and retransmission count in 'nfsstat -c'.

> -----Original Message-----
> From: nfsmailinglist@heessels.com [mailto:nfsmailinglist@heessels.com]
> Sent: Friday, September 05, 2003 2:46 PM
> To: nfs@lists.sourceforge.net
> Subject: RE: [NFS] 'random' diskless clients hangs
>
>
> The clients still hang every few hours. There is nothing in the logs. 
> When we change the rsize and wsize to 2048, the cleint no longer crash 
> but clients and server because extremely slow.
>
> Please help! We are willing to pay a fee, by the way, if someone is 
> interested in take a good hard look at our problem.
>
> This is our setup:
>
> SERVER:
> =======
>
> Linux Red Hat 7.3 kernel 2.4.18-27.7.x
> nfs-utils-1.0.5-1
>
> netboot settings:
> label linux
>   kernel vmlinuz
>   ipappend 1
>   append   root=/dev/nfs
> nfsroot=192.168.1.112:/clients/%s/root,v3,nolock,intr,rsize=40
> 96,wsize=4096
>
> exports:
> /clients/blue/root
> 192.168.1.160/255.255.255.255(rw,no_root_squash,sync)
>
> CLIENTS:
> ========
>
> Linux Red Hat 7.3 kernel 2.4.20-18.7custom
> nfs-utils-1.0.5-1
>
> fstab:
> 192.168.1.112:/clients/blue/root                /           nfs
> rw,nfsvers=3,hard,intr,udp,nolock   0 0
>
>
> -----Original Message-----
> From: nfs-admin@lists.sourceforge.net 
> [mailto:nfs-admin@lists.sourceforge.net]On Behalf Of Bernd Schubert
> Sent: woensdag 3 september 2003 21:03
> To: nfsmailinglist@heessels.com; nfs@lists.sourceforge.net
> Subject: Re: [NFS] 'random' diskless clients hangs
>
>
> On Wednesday 03 September 2003 11:33, nfsmailinglist@heessels.com 
> wrote:
> > Hello,
> >
> > We have a setup with a NFS V3 Fileserver and diskless
> clients all running
> > Red Hat 7.3.
> >
> > All clients run fine for days at a time, but every now and
> then a client
> > hangs. Most of the time the process that is porbably
> causing the hang is
> > either rhn_check (from Red Hat Network) or httpsd with user
> psaadm (from
> > Plesk 6.0.1).
> >
> > Since we are new to NFS we're not sure how to track down
> this problem. Any
> > help would be VERY much appreciated!
> >
>
> Hello,
>
> we are also using diskless clients but have never seen something like 
> this, though none of your hanging programs is running on your systems.
> Is there anything in the logs? Which kernel-versions are you
> using? If you
> are
> using redhat kernel you should try a vanilla kernel (2.4.21
> *NOT* 2.4.22).
>
> Btw, how is your diskless setup working? Perhaps there's something 
> wrong?
>
> Regards,
> 	Bernd
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf 
> _______________________________________________
> NFS maillist  -  NFS@lists.sourceforge.net 
> https://lists.sourceforge.net/lists/listinfo/nfs
>
>
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf 
> _______________________________________________
> NFS maillist  -  NFS@lists.sourceforge.net 
> https://lists.sourceforge.net/lists/listinfo/nfs
>




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Welcome to geek heaven.
http://thinkgeek.com/sf _______________________________________________
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https://lists.sourceforge.net/lists/listinfo/nfs

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-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
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^ permalink raw reply	[flat|nested] 15+ messages in thread
end of thread, other threads:[~2003-09-09 15:53 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-09-03  9:26 'random' diskless clients hangs Robert Heessels
2003-09-03 18:02 ` Steve Dickson
  -- strict thread matches above, loose matches on Subject: below --
2003-09-03  9:33 nfsmailinglist
2003-09-03 19:03 ` Bernd Schubert
2003-09-03 21:31   ` Marc Schmitt
2003-09-05 18:46   ` nfsmailinglist
2003-09-05 19:50     ` Trond Myklebust
2003-09-06  7:25       ` nfsmailinglist
2003-09-06 18:27         ` Bogdan Costescu
2003-09-08 18:37           ` nfsmailinglist
2003-09-09  5:48             ` Matt C
2003-09-09 15:25             ` Bernd Schubert
     [not found] <482A3FA0050D21419C269D13989C6113D06C13@lavender-fe.eng.netapp.com>
2003-09-05 19:14 ` nfsmailinglist
2003-09-05 19:49 Dennis, Richard
2003-09-06  6:44 ` nfsmailinglist

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