Re: DDM transmissions hanging

I can tell you I had a somewhat similar situation several years ago.
IBM worked on it, and actually came onsite with some tracing
equipment (when we still had System Engineers).
After many tests on many nights (3am), and getting the phone company
involved,
we found that certain "paths" thru a local telephone switch center
of BellSouth could not handle the volume of data. They replaced
some cards and that fixed it. This was dialup, so each call was a
different path thru the center. Was intermittant failure, same time
of day.
hth
jim

----- Original Message ----- 
From: "Tucker Gerry" <Gerry.Tucker@xxxxxxxxxxx>
To: <midrange-l@xxxxxxxxxxxx>
Sent: Thursday, December 18, 2003 3:46 AM
Subject: FW: DDM transmissions hanging


> Hi all,
>
> I've seen this mentioned in the past but having trawled the archives I
haven't managed to find a reason or solution so I'll ask the list.
>
> We use DDM to transfer data both ways between ourselves and a client, all
day every day.  Most days we have no problems, but occasionally the job just
seems to "hang".  The opened files do not seem to move, nor does the
invocation stack which sits on a recv().
>
> We've done communications traces and dumped joblogs which IBM have scanned
and come up with nothing.  Has anyone experienced the same thing and did you
get it resolved?
>
> Regards,
>
> Gerry Tucker
> Senior Analyst Programmer
> Technicolor
> Wembley, UK
> Tel: +44(0)208-900-6555
> Mobile: +44(0)7974-561013
>
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