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[IDD #HNU-894965]: CONDUIT latency at idd.unidata.ucar.edu?

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  • Subject: [IDD #HNU-894965]: CONDUIT latency at idd.unidata.ucar.edu?
  • Date: Tue, 20 Nov 2007 14:51:30 -0700
Hi Art,

re:
> I'm looking at the latency graph
> (www.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?CONDUIT+idd.unidata.ucar.edu)
> and seeing large latencies on some of the feeds... should I be concerned
> about this?

The latencies being shown for CONDUIT data coming from emo.unidata.ucar.edu
to idd.unidata.ucar.edu went south:

http://www.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?CONDUIT+idd.unidata.ucar.edu

The portion of CONDUIT data that is showing high latencies is, however, small:

http://www.unidata.ucar.edu/cgi-bin/rtstats/iddstats_vol_nc?CONDUIT+idd.unidata.ucar.edu

My first guess is that the products with very high latencies are ones that are 
being
received a second time, after the initially received ones have been scoured out 
of
the queue on the receiving machine.

> It seems to be translating into latencies downstream on our relay.

Yes, but are the products being received with high latencies "second trip" ones?
We will investigate to find out what is going on...

Cheers,

Tom
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Ticket Details
===================
Ticket ID: HNU-894965
Department: Support CONDUIT
Priority: Normal
Status: Closed