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[Datastream #CZV-308644]: Fwd: NEXRAD on AWS outage

Chris,

We're now using the machine in us-west-2. Everything seems to be working fine, 
and this machine's feed has been stable for the last 24 hours, so I'd 
anticipate we should be good for awhile.

If you happen to see any new issues, please do reach out.

Ryan

> Hi Chris,
> 
> The following link will generate a plot of Nexrad Level 2 product latencies
> for our AWS east instance that is currently responsible for populating the
> S3 bucket you are likely accessing:
> 
> http://rtstats.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?NEXRAD2+amazon.ec2e_1.unidata.ucar.edu
> 
> As you will see, there are periods of very low latency (latency is the
> time difference between the receipt of a product and when it was first
> injected into the IDD) followed by prolonged high latencies.  An associated
> piece of information is that during the periods of low latencies, products
> are redundantly being received from three upstream feed instances.  During
> the periods of high latency, the data from two of the three upstream feed
> sites are basically choked down to nothing leaving only one upstream providing
> data, and that feed is being throttled somewhere.  As Ryan indicated, we
> are _not_ seeing this kind of behavior on the AWS west instance that Ryan
> spun up yesterday:
> 
> http://rtstats.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?NEXRAD2+amazon.ec2w2_2.unidata.ucar.edu
> 
> Again, just an FYI...
> 
> Cheers,
> 
> Tom
> --
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Ticket Details
===================
Ticket ID: CZV-308644
Department: Support Datastream
Priority: Normal
Status: Closed
===================
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