RE: Pause technique

[Darrell A Martin <DMartin@xxxxxxxxxxxxx>]

Hi, Charles:

I think the possibility of restarting is implicit in the problem as it was 
stated. Otherwise there is no point to verification.

I agree that it is not desirable to have processes that assume failure. In 
a perfect world, programmers would not write bugs, hardware would not 
fail, and the effects of configuration changes and upgrades would always 
be fully understood and anticipated. That world is not the one we live in. 
So, although failure should not be ACCEPTED it must be ANTICIPATED.

Eventually, one would fervently hope, the programs in question would run 
so reliably that the multi-step verification would not be necessary. At 
the same time, it would probably be a good thing if the verification steps 
were handled programmatically and the recovery were likewise "automatic". 
But if that combined programming effort would require 50 hours; and if the 
human verification takes only 1 hour a year, and there are no other 
objective or subjective costs; the project to eliminate verification will 
be dead on arrival for business reasons. If verification takes a lot 
longer, then of course at some point the ROI could be acceptable.

Darrell

Darrell A. Martin  -  630-754-2187
Manager, Computer Operations
dmartin@xxxxxxxxxxxxx

midrange-l-bounces@xxxxxxxxxxxx wrote on 09/27/2006 12:12:22 PM:

> You didn't ask about restarting, just how to pause the job stream.
>
> I assume that if your check fails you cancel the current job stream and
> restart at the appropriate place.
>
> As a side note, I absolutely abhor this kind of processing.  It seems to
> me that by processing this way, failure is an expected and acceptable
> occurrence.  IMHO, that's an indicator of something seriously wrong with
> the design and implementation of a system.
>
>
> Charles Wilt




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