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June 2014

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From:
Larry Linder <[log in to unmask]>
Reply To:
Larry Linder <[log in to unmask]>
Date:
Tue, 24 Jun 2014 09:56:24 -0400
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On Tuesday 24 June 2014 8:54 am, Joseph Areeda wrote:
> Thanks Stephan,
>
> On 06/24/2014 01:07 AM, Stephan Wiesand wrote:
> > On 2014-06-24, at 6:48, Joseph Areeda <[log in to unmask]> wrote:
> >> I have a C++ program that runs on multiple systems.  It uses a
> >> proprietary network protocol contained in a shared object.
> >>
> >> On one of the systems I get this error regularly but not often enough to
> >> use a debugger:
> >>
> >> NDS library error: Resource temporarily unavailable
> >>
> >> It only seems to happen on one system, my workstation.  I've reinstalled
> >> the library.  I have Googled my heart out and while I see the error
> >> reported in other packages I haven't found anything that explains what
> >> it means.  NDS is the name of the service (Network Data Service).
> >>
> >> The only hints I've gotten suggest it might mean the network interface
> >> itself might be involved but nothing else seems to have a problem.  If
> >> it were a bug in the library I'd expect to see it on the other systems
> >> which are in production.
> >>
> >> Any clues as to what it means or where to read up on it would be greatly
> >> appreciated.
> >
> > Some library call returned EAGAIN. The prime suspect is usually fork(2),
> > but in the case of a network library, I'd look at send(2) first.
> >
> > Hth
> > 	Stephan

Do you have a managed switch behind a router in system?
Maybe a 1G Hz router feeding a 100K Hz router?
Most newer boxes have a 1GHz NIC (built in) in them.   We have a managed 1 G 
Hz switch that is managed and we have a Motorola router that is less than 1 
GHz with factory default set up.   The switch shows up on our network as a 
device!   I sort of wondered about it as a cause of our stack up (slowness) 
sometimes in the afternoon.   I have never seen much discussion about a 
managed switch and network performance.

Larry Linder
Larry Linder

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