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Re: 20000824: ldmsend problem

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  • Subject: Re: 20000824: ldmsend problem
  • Date: Thu, 24 Aug 2000 16:15:08 -0500 (CDT)
On Thu, 24 Aug 2000, Robb Kambic wrote:

> David,
> 
> The ldmsend doesn't have the robustness of a LDM server, it's a one time
> shot deal. If a packet is missing or something, then it fails. I would
> recommend using pqinsert, that puts the product into the local queue and
> therefore has the robustness of the LDM server, ie if necessary to resend
> the product.  I speculate that the problem you are seeing is that the
> network conditions have deteriorated to the point that some packets are
> missings or the acknowledgement take to long to be returned.  
> 
> 

Hmmm.. thanks for the info.  I hadn't realized that it was
non-reliable.   Network connection seems to be fine...just
ran some tests.  Machine load seems to be higher than normal
though so that might account for it. 

Running a whole ldm server is overkill for what I'm trying
to do.  ldmsend was more lightweight.  I had to move output
from a program that would only run on a certain machine to 
our main data server and ldmsend seemed like an easy way.
(NFS cross mounting was not possible in this case for 
various reasons.)

Actually, now I only need to use that data anymore on the
machine it is generated on, so I'm just keeping it local now.

Thanks for the helpful info.

--------------------------------------------------------
 David Wojtowicz, Sr. Research Programmer/Systems Manager
 Department of Atmospheric Sciences Computer Services
 University of Illinois at Urbana-Champaign
 email: address@hidden  phone: (217)333-8390
--------------------------------------------------------