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RE: NNEXRAD Latencies?

HI Jeff and David, 

This network may provide greater bandwidth, I suppose it is worth a try,
especially until we hear back from LSU. Jeff, we may try feeding flood
from sirocco at LSU to help eliminate some of the potential problem
areas..i.e. network traffic. David, if you have the time, we may want to
investigate this other network, and feed machine from wunderground..as we
wait to hear back from Bob at LSU..

Thanks for your timely responses, it makes this work ALOT easier.

-Jeff
____________________________                  _____________________
Jeff Weber                                    address@hidden
Unidata Support                               PH:303-497-8676 
NWS-COMET Case Study Library                  FX:303-497-8690
University Corp for Atmospheric Research      3300 Mitchell Ln
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000
________________________________________      ______________________

On Wed, 5 Dec 2001, Jeff Masters wrote:

> 
> David, try feeding from whirlpool.wunderground.com and see if you get
> better results. That machine is on a different network, perhaps you will
> get better results, although traceroute shows similar results to the one
> from frost.wunderground.com:
> 
> traceroute to flood.atmos.uiuc.edu (128.174.80.47), 30 hops max, 40 byte
> packets
>  1  66.28.69.129 (66.28.69.129)  1.01 ms  0.562 ms  0.495 ms
>  2  g0-2.core01.sjc01.atlas.cogentco.com (66.28.5.185)  0.564 ms  0.342 ms
> 0.328 ms
>  3  p4-0.core01.sfo01.atlas.cogentco.com (66.28.4.93)  1.598 ms  1.685 ms
> 1.557 ms
>  4  p15-0.core02.sfo01.atlas.cogentco.com (66.28.4.42)  1.609 ms  2.615 ms
> 1.651 ms
>  5  p15-0.core01.den01.atlas.cogentco.com (66.28.4.129)  25.718 ms  25.243
> ms  25.488 ms
>  6  p5-0.core01.mci01.atlas.cogentco.com (66.28.4.30)  37.233 ms  36.136
> ms  40.066 ms
>  7  p13-0.core01.ord01.atlas.cogentco.com (66.28.4.34)  47.515 ms  48.303
> ms  48.685 ms
>  8  atm-0-0-0.nap.lincon.net (206.220.243.106)  48.012 ms  48.928 ms
> 48.052 ms
>  9  206.166.8.90 (206.166.8.90)  69.972 ms  68.572 ms  59.224 ms
> 10  uiuc-atmdmz-net.gw.uiuc.edu (192.17.8.32)  54.154 ms  53.542 ms
> 54.219 ms
> 11  t-core1-1.gw.uiuc.edu (128.174.0.196)  53.584 ms  52.684 ms  62.415 ms
> 12  t-core1-1.gw.uiuc.edu (128.174.1.129)  53.611 ms  54.509 ms  56.44 ms
> 13  t-terra.gw.uiuc.edu (128.174.1.169)  54.753 ms  55.136 ms  55.432 ms
> 14  flood.atmos.uiuc.edu (128.174.80.47)  63.146 ms  56.074 ms  53.862 ms
> 
> Jeff
> ------------------------------------------------------------------------------
>  Dr. Jeff Masters (address@hidden)                           (  )  
>  Chief Meteorologist                              /\ Home of the       (    ) 
>  The Weather Underground, Inc.               /\  /  \  /\       /\    (      )
>  300 N Fifth Ave #240                       /  \/    \/  \ /\  /  \    ------
>  Ann Arbor, MI 48104                 ______/              /  \/    \_   \\\\\
>  734-994-8824 (voice)                           Weather Underground      \`\`\
>  734-994-8919 (fax)                         http://www.wunderground.com
>  
>  
> On Wed, 5 Dec 2001, Jeff Weber wrote:
> 
> > Hello Ldm'ers,
> > 
> > It does appear that both frost and ingestor at wunderground are on time.
> > 
> > The delay seems to be occurring at flood.atmos.uiuc.edu
> > 
> > Doing a notifyme to flood indicates that it is being overwhelmed by the
> > NMC2 (CONDUIT) feed, causing delay for other products.
> > 
> > Those of you feeding NNEXRAD  from flood, or feeding other products and
> > experiencing latencies, please let me know and we will attempt other
> > sites if you desire.
> > 
> > We are working on this issue and will keep the list aware of any changes.
> > 
> > Thank you,
> > 
> > 
> > -Jeff
> > ____________________________                  _____________________
> > Jeff Weber                                    address@hidden
> > Unidata Support                               PH:303-497-8676 
> > NWS-COMET Case Study Library                  FX:303-497-8690
> > University Corp for Atmospheric Research      3300 Mitchell Ln
> > http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000
> > ________________________________________      ______________________
> > 
> > On Wed, 5 Dec 2001, David Wojtowicz wrote:
> > 
> > > Flood.atmos.uiuc.edu does indeed feed NNEXRAD from wunderground.com and we
> > > are receiving it delayed from them.  Steve Chizwell mentioned this to me 
> > > the
> > > other day and said he was checking into it.
> > > 
> > > --david wojtowicz
> > > 
> > > -----Original Message-----
> > > From: address@hidden
> > > [mailto:address@hidden]On Behalf Of Kevin R. Tyle
> > > Sent: Wednesday, December 05, 2001 10:53 AM
> > > To: Eric Nelson
> > > Cc: LDM Users List; address@hidden
> > > Subject: Re: NNEXRAD Latencies?
> > > 
> > > 
> > > Hi Eric,
> > > 
> > > Like you, we feed from flood, and yes, we see the same latencies.
> > > Top-level feed site looks to be ingestor.wunderground.com.  Last night
> > > our stats file indicated latencies near 1 hour for HDS feeds emanating
> > > from wunderground as well as NNEXRAD.  The HDS latency was transient,
> > > but NNEXRAD is still slow as of this time.
> > > 
> > > ______________________________________________________________________
> > > Kevin Tyle, Systems Administrator               **********************
> > > Dept. of Earth & Atmospheric Sciences           address@hidden
> > > University at Albany, ES-235                    518-442-4571 (voice)
> > > 1400 Washington Avenue                          518-442-5825 (fax)
> > > Albany, NY 12222                                **********************
> > > ______________________________________________________________________
> > > 
> > > On Wed, 5 Dec 2001, Eric Nelson wrote:
> > > 
> > > >
> > > > We're feeding NNEXRAD and FNEXRAD from flood.atmos.uiuc.edu and seeing
> > > > latencies of roughly an hour.  Is anyone else experience data lag for
> > > > these feeds?
> > > >
> > > > -Eric
> > > > _______________________________________________________________________
> > > > Eric Nelson                        College of Dupage Meteorology Dept.
> > > > NWP WXP Graphics/Forecaster              http://weather.cod.edu/
> > > > Lab:(630) 942-2590                       address@hidden
> > > >
> > > > "I love deadlines.  I especially like the whooshing sound they make as
> > > > they go flying by."     --Douglas Adams
> > > > _______________________________________________________________________
> > > >
> > > >
> > > 
> > > 
> > > 
> > 
> > 
> 
> 
>