[CONDUIT #CPL-818261]: CONDUIT data and GFS

Hi Wesley,

Apologies for the very tardy reply!

re:
> Thanks for the quick reply. At the moment, we are only receiving data
> from CONDUIT.

OK.

re:
> Restarting LDM, for whatever reason, made it switch to UIUC as its
> primary feeder:
> 
> --
> Aug  6 11:57:27 polarmet12 pqact[8621] NOTE: Starting Up
> Aug  6 11:57:27 polarmet12 pqact[8621] NOTE: Starting from insertion-time 
> 2015-08-06 15:57:21.231895 UTC
> Aug  6 11:57:27 polarmet12 idd.aos.wisc.edu[8623] NOTE: Upstream LDM-6 on 
> idd.aos.wisc.edu is willing to be a primary feeder
> Aug  6 11:57:27 polarmet12 flood.atmos.uiuc.edu[8624] NOTE: Upstream LDM-6 on 
> flood.atmos.uiuc.edu is willing to be an alternate feeder
> Aug  6 11:57:56 polarmet12 ldmd[8628] NOTE: Denying connection from 
> "rain.mmm.ucar.edu" because not allowed
> Aug  6 11:57:56 polarmet12 ldmd[8628] NOTE: Exiting
> Aug  6 11:57:56 polarmet12 ldmd[8619] NOTE: child 8628 exited with status 1
> Aug  6 11:58:22 polarmet12 pine.mmm.ucar.edu(feed)[8630] NOTE: Data-product 
> with signature 275a3f8522d76fcd82b73ce9ad5e6fc5 wasn'  found in product-queue
> Aug  6 11:58:22 polarmet12 pine.mmm.ucar.edu(feed)[8630] NOTE: Starting 
> Up(6.11.6/6): 20150806145821.754 TS_ENDT {{EXP,  ".*"}},
> SIG=275a3f8522d76fcd82b73ce9ad5e6fc5, Alternate
> Aug  6 11:58:22 polarmet12 pine.mmm.ucar.edu(feed)[8630] NOTE: topo:  
> pine.mmm.ucar.edu {{EXP, (.*)}}
> Aug  6 11:58:28 polarmet12 flood.atmos.uiuc.edu[8624] NOTE: [acl.c:956] 
> Switching data-product transfer-mode to primary
> Aug  6 11:58:28 polarmet12 flood.atmos.uiuc.edu[8624] NOTE: LDM-6
> desired product-class: 20150806145828.616 TS_ENDT {{CONDUIT, ".*"},{NONE,  
> "SIG=f7882d6a12067d5b7cf143802ab1bbab"}}
> Aug  6 11:58:28 polarmet12 flood.atmos.uiuc.edu[8624] NOTE: Upstream
> LDM-6 on flood.atmos.uiuc.edu is willing to be a primary feeder
> Aug  6 11:58:56 polarmet12 ldmd[8696] NOTE: Denying connection from 
> "rain.mmm.ucar.edu" because not allowed
> Aug  6 11:58:56 polarmet12 ldmd[8696] NOTE: Exiting
> Aug  6 11:58:56 polarmet12 ldmd[8619] NOTE: child 8696 exited with status 1
> Aug  6 11:59:57 polarmet12 ldmd[8703] NOTE: Denying connection from 
> "rain.mmm.ucar.edu" because not allowed
> Aug  6 11:59:57 polarmet12 ldmd[8703] NOTE: Exiting
> Aug  6 11:59:57 polarmet12 ldmd[8619] NOTE: child 8703 exited with status 1
> 
> --

OK.

FYI: the LDM should switch roles (meaning PRIMARY vs SECONDARY) automatically
when one has more than one REQUEST for the same feed.  The logic should see 
which
upstream is providing the products the fastest, and "promote" that connenection
to PRIMARY and "demote" the other(s) to SECONDARY (in reality, the downstream
LDM process is aware of other downstream process(es) that are REQUESTing the
same feed, and it/they decide if they should have a PRIMARY or SECONDARY
feed from the upstream.  Why your LDM was not auto switching is a mystery
at this point.

re:
> At that point, the products have started to flow in normally:
> http://rtstats.unidata.ucar.edu/cgi-bin/rtstats/iddstats_vol_nc?CONDUIT
> +polarmet12.mps.ohio-state.edu

Very good.

re:
> I did verify that our firewall wasn't overloaded or shaping the incoming
> traffic. Our building has a gigabit link to OSU-Net. Speed test checked
> out, and I didn't see any abnormalities on the switch the LDM server is
> connected to. May have been congestion between us and Wisconsin.

OK.

re:
> I did also include the log entries about "rain.mmm.ucar.edu". I've never
> seen that server before... maybe you might know who operates that server
> so I can get in touch with them and see why they have us listed as an
> upstream! We would be happy to feed them data, if needed.

I do not know who the LDM/IDD admin for rain.mmm.ucar.edu is.  I would
venture to guess, however, that it is the same person/group as for your
other MMM downstream, pine.mmm.ucar.edu (your log file sample shows
that pine is ALLOWed to REQUEST the EXP feed).

Cheers,

Tom
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Ticket Details
===================
Ticket ID: CPL-818261
Department: Support CONDUIT
Priority: Normal
Status: Closed