RedHat 7.3 crashed NetApp?

RedHat 7.3 crashed NetApp?

[H . J . Lu]

Has anyone seen

http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=65069


H.J.

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Re: RedHat 7.3 crashed NetApp?

[seth vidal]

On Thu, 2002-05-16 at 18:39, H . J . Lu wrote:
> Has anyone seen
> 
> http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=65069
> 

Is there anyone who can assuage the concerns of sct in this bug:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=59245

-sv



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RE: RedHat 7.3 crashed NetApp?

[Cooke, Alan]

While running the 2.4.18-4smp kernel (RedHat), and testing NFS3, our =
NetApp filer running OnTap 6.1.1R2 experienced massive incoming traffic =
from the Linux client in question. The Linux client required rebooting. =
We have been able to repeat this behavior, and are suspicious of the =
network driver on the Linux client which is using the eth0 driver. A

Sound familiar?

Alan Cooke
Hewlett-Packard Company
ISS/EDA
Office: 281-518-9775
Fax    : 281-518-8015
Email  : acooke@hp.com

"If everything seems under control, you're just not going fast enough."
-- Mario Andretti








-----Original Message-----
From: H . J . Lu [mailto:hjl@lucon.org]
Sent: Thursday, May 16, 2002 5:39 PM
To: nfs@lists.sourceforge.net
Subject: [NFS] RedHat 7.3 crashed NetApp?


Has anyone seen

http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=3D65069


H.J.

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Have big pipes? SourceForge.net is looking for download mirrors. We =
supply
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bandwidth@sourceforge.net
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Re: RedHat 7.3 crashed NetApp?

[H . J . Lu]

On Fri, May 17, 2002 at 08:14:37AM -0500, Cooke, Alan wrote:
> While running the 2.4.18-4smp kernel (RedHat), and testing NFS3, our NetApp filer running OnTap 6.1.1R2 experienced massive incoming traffic from the Linux client in question. The Linux client required rebooting. We have been able to repeat this behavior, and are suspicious of the network driver on the Linux client which is using the eth0 driver. A
> 

I think it is the same as what happened to me. I had to reboot/unplug
my Linux client before the whole NFS network went down. I am using Intel
e100 driver on eepro100. But my Linux NFS severs have no problem with
that client.


H.J.

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Re: RedHat 7.3 crashed NetApp?

[Daryl Herzmann]

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Hi,

I reported the exact same thing with an IRIX server on Friday to this 
list.  I am glad that others are experiencing it too.  Using version 2 
made the troubles go away for me.

http://www.geocrawler.com/lists/3/SourceForge/789/75/8633160/

Time for a RH bugzilla entry or is there one?

Daryl

On Fri, 17 May 2002, H . J . Lu wrote:

>On Fri, May 17, 2002 at 08:14:37AM -0500, Cooke, Alan wrote:
>> While running the 2.4.18-4smp kernel (RedHat), and testing NFS3, our NetApp filer running OnTap 6.1.1R2 experienced massive incoming traffic from the Linux client in question. The Linux client required rebooting. We have been able to repeat this behavior, and are suspicious of the network driver on the Linux client which is using the eth0 driver. A
>> 
>
>I think it is the same as what happened to me. I had to reboot/unplug
>my Linux client before the whole NFS network went down. I am using Intel
>e100 driver on eepro100. But my Linux NFS severs have no problem with
>that client.
>
>
>H.J.
>
>

-- 
/**
 * Daryl Herzmann (akrherz@iastate.edu)
 * Program Assistant -- Iowa Environmental Mesonet
 * http://mesonet.agron.iastate.edu
 */




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Re: RedHat 7.3 crashed NetApp?

[Benjamin LaHaise]

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On Fri, May 17, 2002 at 12:16:48PM -0500, Daryl Herzmann wrote:
> Time for a RH bugzilla entry or is there one?

There are several.  Some of the people reporting problems have verified 
that they are present in 2.4.19-pre8 as well.

		-ben

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RE: RedHat 7.3 crashed NetApp?

[Lever, Charles]

i'm wondering what are the common elements here:

is the EEpro 100 ethernet card common to all clients
that exhibit this problem?  NFSv3 over UDP?  what is
the nature of the network flood -- ICMP packets, or
UDP?  does "top" on the client show whether a particular
process or processes is spinning?

a tcpdump or at least "netstat -s" on the client after
the network is unplugged might be helpful.

> -----Original Message-----
> From: Cooke, Alan [mailto:acooke@hp.com]
> Sent: Friday, May 17, 2002 9:15 AM
> To: nfs@lists.sourceforge.net
> Subject: RE: [NFS] RedHat 7.3 crashed NetApp?
> 
> 
> While running the 2.4.18-4smp kernel (RedHat), and testing 
> NFS3, our NetApp filer running OnTap 6.1.1R2 experienced 
> massive incoming traffic from the Linux client in question. 
> The Linux client required rebooting. We have been able to 
> repeat this behavior, and are suspicious of the network 
> driver on the Linux client which is using the eth0 driver. A
> 
> Sound familiar?
> 
> Alan Cooke
> Hewlett-Packard Company
> ISS/EDA
> Office: 281-518-9775
> Fax    : 281-518-8015
> Email  : acooke@hp.com
> 
> "If everything seems under control, you're just not going 
> fast enough."
> -- Mario Andretti
> 
> 
> 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: H . J . Lu [mailto:hjl@lucon.org]
> Sent: Thursday, May 16, 2002 5:39 PM
> To: nfs@lists.sourceforge.net
> Subject: [NFS] RedHat 7.3 crashed NetApp?
> 
> 
> Has anyone seen
> 
> http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=65069
> 
> 
> H.J.
> 
> _______________________________________________________________
> 
> Have big pipes? SourceForge.net is looking for download 
> mirrors. We supply
> the hardware. You get the recognition. Email Us: 
> bandwidth@sourceforge.net
> _______________________________________________
> NFS maillist  -  NFS@lists.sourceforge.net
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> 
> _______________________________________________________________
> 
> Have big pipes? SourceForge.net is looking for download 
> mirrors. We supply
> the hardware. You get the recognition. Email Us: 
> bandwidth@sourceforge.net
> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/nfs
> 

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Re: RedHat 7.3 crashed NetApp?

[Benjamin LaHaise]

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[a few data points from the bugzilla entries]

On Fri, May 17, 2002 at 03:17:53PM -0700, Lever, Charles wrote:
> i'm wondering what are the common elements here:
> 
> is the EEpro 100 ethernet card common to all clients
> that exhibit this problem?

eepro, tulip, 3com have all shown problems with 2.4.18 (at least 
serious performance issues).

>  NFSv3 over UDP?

Yes.  A number of people have now reported that forcing v2 operation 
does not result in slow performance, whereas in the 2.4.9-ac12 based 
kernel, v3 was fine.

		-ben

_______________________________________________________________

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Re: RedHat 7.3 crashed NetApp?

[seth vidal]

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On Fri, 2002-05-17 at 20:17, Benjamin LaHaise wrote:
> [a few data points from the bugzilla entries]
> 
> On Fri, May 17, 2002 at 03:17:53PM -0700, Lever, Charles wrote:
> > i'm wondering what are the common elements here:
> > 
> > is the EEpro 100 ethernet card common to all clients
> > that exhibit this problem?
> 
> eepro, tulip, 3com have all shown problems with 2.4.18 (at least 
> serious performance issues).
> 
> >  NFSv3 over UDP?
> 
> Yes.  A number of people have now reported that forcing v2 operation 
> does not result in slow performance, whereas in the 2.4.9-ac12 based 
> kernel, v3 was fine.
> 

from the discussion in bugzilla it seemed like a fair number of people
were suffering from the nfs defaults going to nfsv3, upd and 32768 wsize
and rsize/ 32768 bytes. That size of packet is going to be hard for even
REALLY well maintained networks to manage.

It might be worthwhile to try out the nfsv3 client over tcp and see if
the same problems occur. 

-sv


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RE: RedHat 7.3 crashed NetApp?

[Lever, Charles]

ben-

were any patches applied to RH's 2.4.18 that touched the NFS client?
for example, were any of Trond's experimental patches applied?

thanks!

> [a few data points from the bugzilla entries]
> 
> On Fri, May 17, 2002 at 03:17:53PM -0700, Lever, Charles wrote:
> > i'm wondering what are the common elements here:
> > 
> > is the EEpro 100 ethernet card common to all clients
> > that exhibit this problem?
> 
> eepro, tulip, 3com have all shown problems with 2.4.18 (at least 
> serious performance issues).
> 
> >  NFSv3 over UDP?
> 
> Yes.  A number of people have now reported that forcing v2 operation 
> does not result in slow performance, whereas in the 2.4.9-ac12 based 
> kernel, v3 was fine.
> 
> 		-ben
> 

_______________________________________________________________
Hundreds of nodes, one monster rendering program.
Now that's a super model! Visit http://clustering.foundries.sf.net/

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Re: RedHat 7.3 crashed NetApp?

[Benjamin LaHaise]

On Mon, May 20, 2002 at 07:19:11AM -0700, Lever, Charles wrote:
> ben-
> 
> were any patches applied to RH's 2.4.18 that touched the NFS client?
> for example, were any of Trond's experimental patches applied?

Just a few bits from -ac and the fix for irix nfs cookies.

		-ben
-- 
"You will be reincarnated as a toad; and you will be much happier."

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RE: RedHat 7.3 crashed NetApp?

[Vladimir Vuksan]

We have had a similar problem with NetApp F720 where couple times a day NetApp would stop responding. On one occassion we had an occurence where a single box was trying to write out a 2 GB core dump file to the NetApp which completely hosed it down. Even without misbehaving problems we had issues with it. We had a script from NetApp that was continuously doing sysstat, nfsstat but there were no indications on what was going on. This is all on a network of RedHat 7.2 clients with 2.4.9-31 RedHat stock kernel. What saved us was switching to NFS over TCP. I am not very fond of that particular solution since it is more like treating the symptoms and not the root cause.

Vladimir

--- "Lever, Charles" <Charles.Lever@netapp.com> wrote:
>i'm wondering what are the common elements here:
>
>is the EEpro 100 ethernet card common to all clients
>that exhibit this problem?  NFSv3 over UDP?  what is
>the nature of the network flood -- ICMP packets, or
>UDP?  does "top" on the client show whether a particular
>process or processes is spinning?
>
>a tcpdump or at least "netstat -s" on the client after
>the network is unplugged might be helpful.
>
>> -----Original Message-----
>> From: Cooke, Alan [mailto:acooke@hp.com]
>> Sent: Friday, May 17, 2002 9:15 AM
>> To: nfs@lists.sourceforge.net
>> Subject: RE: [NFS] RedHat 7.3 crashed NetApp?
>> 
>> 
>> While running the 2.4.18-4smp kernel (RedHat), and testing 
>> NFS3, our NetApp filer running OnTap 6.1.1R2 experienced 
>> massive incoming traffic from the Linux client in question. 
>> The Linux client required rebooting. We have been able to 
>> repeat this behavior, and are suspicious of the network 
>> driver on the Linux client which is using the eth0 driver. A
>> 
>> Sound familiar?
>> 
>> Alan Cooke
>> Hewlett-Packard Company
>> ISS/EDA
>> Office: 281-518-9775
>> Fax    : 281-518-8015
>> Email  : acooke@hp.com
>> 
>> "If everything seems under control, you're just not going 
>> fast enough."
>> -- Mario Andretti
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: H . J . Lu [mailto:hjl@lucon.org]
>> Sent: Thursday, May 16, 2002 5:39 PM
>> To: nfs@lists.sourceforge.net
>> Subject: [NFS] RedHat 7.3 crashed NetApp?
>> 
>> 
>> Has anyone seen
>> 
>> http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=65069
>> 
>> 
>> H.J.
>> 
>> _______________________________________________________________
>> 
>> Have big pipes? SourceForge.net is looking for download 
>> mirrors. We supply
>> the hardware. You get the recognition. Email Us: 
>> bandwidth@sourceforge.net
>> _______________________________________________
>> NFS maillist  -  NFS@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/nfs
>> 
>> _______________________________________________________________
>> 
>> Have big pipes? SourceForge.net is looking for download 
>> mirrors. We supply
>> the hardware. You get the recognition. Email Us: 
>> bandwidth@sourceforge.net
>> _______________________________________________
>> NFS maillist  -  NFS@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/nfs
>> 
>
>_______________________________________________________________
>
>Hundreds of nodes, one monster rendering program.
>Now that&#8217;s a super model! Visit http://clustering.foundries.sf.net/
>_______________________________________________
>NFS maillist  -  NFS@lists.sourceforge.net
>https://lists.sourceforge.net/lists/listinfo/nfs

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