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Date: Fri, 5 Mar 2010 18:21:55 -0800
From: Andrew Sharp <andy.sharp@lsi.com>
To: "Kwan, Ed" <Ed.Kwan@lsi.com>
Cc: "Ketineni, Usha" <Usha.Ketineni@lsi.com>, dl-engineering@lsi.com
Subject: Re: /n hangs on 10.2.65.17
Message-ID: <20100305182155.7730daa3@ripper.onstor.net>
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Yes, it seems one of the switches/routers (10.3.0.1) is misbehaving,
and every time it happens, it takes some time for the cached MAC
addresses to leach out of the network, causing temporary
networking/routing problems.

I chatted with help desk about it (HD0000001303112), they have contacted
some of the networking IT folks in Milpitas who have looked at some of
the switch logs and seen some slight oddities, but no one quite knows
what's the root cause so far.

Hopefully we will have it cleared up soon.

a



On Fri, 5 Mar 2010 17:43:32 -0700 "Kwan, Ed" <Ed.Kwan@lsi.com> wrote:

> I think Andy is working on this issue.
> 
> From: Ketineni, Usha
> Sent: Friday, March 05, 2010 4:43 PM
> To: Kwan, Ed
> Subject: /n hangs on 10.2.65.17
> 
> Ed, It seems flaky. We again cannot access /n with the machines on
> the subnet 10.2.65.x.  Terence, Brent and myself are having this
> problem off and on. Should I open a ticket on this too?
> 
> -Usha
> From: Ketineni, Usha
> Sent: Friday, March 05, 2010 1:03 PM
> To: Kwan, Ed
> Subject: RE: perl hangs on 10.2.65.17
> 
> Ed, There seems to be a routing problem to our network 10.2.65.17. I
> cannot cd to /n/lib, it hangs. And terence's m/c on the same subnet
> 10.2.65.16 has the same problem. And the machines on 10.0.x.x are
> able to access that /n automounted directory fine.
> 
> We can't ping 10.3.0.222 where /n is exported and it just came back
> up and access "/n" fine. My issue is resolved now.
> 
> -Usha
> 
> 
> From: Kwan, Ed
> Sent: Friday, March 05, 2010 12:16 PM
> To: Ketineni, Usha; help
> Subject: RE: perl hangs on 10.2.65.17
> 
> You can ssh into compile2 or compile3 to run your builds.
> 
> From: Ketineni, Usha
> Sent: Thursday, March 04, 2010 6:52 PM
> To: help
> Cc: Kwan, Ed
> Subject: RE: perl hangs on 10.2.65.17
> 
> It looks like Richard is out of office. I will try re-installing
> package again and see if that works.
> 
> "I will be out of the office 3/4, returning on 3/8. If you have an
> emergency, in my absence, please contact my manager Andy Sharp."
> 
> -Usha
> From: Ketineni, Usha
> Sent: Thursday, March 04, 2010 6:47 PM
> To: help; Hardiman, Richard
> Cc: Kwan, Ed
> Subject: perl hangs on 10.2.65.17
> 
> Hi,
> 
> Please open a ticket under Usha Ketineni's name (uketinen) to resolve
> the hang issue on my linux machine 10.2.65.17. I cannot be able to
> compile the builds as the perl is hanging and also cannot start
> applications like vncserver etc.. Larry scheer tried re-installing
> perl packages but it didn't clear the issue. Please assign it to the
> onstor Campbell lab support as a high  priority issue. I need to
> resolve this problem as soon as possible.
> 
> I did notice that with "strace vncserver", it  hangs at executing
> perl program. It appears that some file on perl package is missing.
> 
> readlink("/proc/self/exe", "/usr/bin/perl"..., 4095) = 13
> stat64("/n/lib/Linux/deb5.0/2.6.26-2-686/i686/perl/5.10.0/lib/5.10.0/i486-linux-gnu-thread-multi",
> 0xbfffe500) = -1 ENOENT (No such file or directory) --- SIGWINCH
> (Window changed) @ 0 (0) ---
> stat64("/n/lib/Linux/deb5.0/2.6.26-2-686/i686/perl/5.10.0/lib/5.10.0",
> 
> Thanks
> Usha
> 
