Re: [ldm-users] NEXRAD2/NEXRAD3 lag?

• To: LDM Users <ldm-users@xxxxxxxxxxxxxxxx>
• Subject: Re: [ldm-users] NEXRAD2/NEXRAD3 lag?
• From: Blair Trosper <blair.trosper@xxxxxxxxxxxxxxxxxxx>
• Date: Sat, 10 May 2014 21:20:29 -0500

We are still seeing this.  I know the TOC was made aware of this issue two
weeks ago, but despite all our servers being 0 seconds lagged on the
NEXRAD2 feed tree, our data (from multiple providers who are also not
lagged) is at least 10 minutes behind.

Also, this page is a 500 internal server error and has been for months, and
nobody has fixed it or seems to even notice:
http://rtstats.unidata.ucar.edu/cgi-bin/rtstats/rtstats_topogif?NEXRAD2

And this one takes over a minute to load:
http://rtstats.unidata.ucar.edu/cgi-bin/rtstats/rtstats_feedtree?NEXRAD2

...but you can verify from the second link that we're not lagging (search
for "tampa" or "chicago").


On Mon, Apr 28, 2014 at 7:33 PM, Blair Trosper <
blair.trosper@xxxxxxxxxxxxxxxxxxx> wrote:

> Am I crazy, or is anyone else seeing the 10+ minute lag on both feeds?
>
> It will occasionally come into sync, but then fall behind again.  On one
> of our servers that pulls the firehose of both, it's ingesting at 4.5 MB/s,
> which is the highest I've ever seen.
>
> Perhaps an issue with NOAAPort or the data volume is too much for the NOAA
> infrastructure?  Or perhaps an issue with Internet2 itself?
>
> Then again, I might just be crazy, despite having excellent providers.
>
> ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙
>  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙  ∙
> Blair Trosper
>   Updraft Networks / Weather Data
>   NOC:  469-844-5440
>   Early Watch Notifications:  http://twitter.com/weatherwatches
>



-- 

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Blair Trosper
  Updraft Networks / Weather Data
  NOC:  469-844-5440
  Early Watch Notifications:  http://twitter.com/weatherwatches

• Follow-Ups:
  • Re: [ldm-users] NEXRAD2/NEXRAD3 lag?
    • From: Gilbert Sebenste
  • Re: [ldm-users] NEXRAD2/NEXRAD3 lag?
    • From: Blair Trosper

• References:
  • [ldm-users] NEXRAD2/NEXRAD3 lag?
    • From: Blair Trosper