[EAS] [sbe-eas] Is IPAWS down?
Harold Price
hprice at sagealertingsystems.com
Mon Aug 6 16:40:10 CDT 2012
As we saw in the official notice from the IPAWS office, the IPAWS
server had an unplanned outage today.
From the point of view of an ENDEC, you can get a strong, but not
foolproof, indication that the problem is not your local network or ENDEC.
Look at the Wget Log. I've been seeing:
1) HTTP request sent, awaiting response... 504 Gateway Timeout
2) HTTP request sent, awaiting response... 503 Service Unavailable.
504 could be your local proxy, but most of you don't have an HTTPS
proxy. In this case, both of these errors originated close to, or
at, the FEMA IPAWS server. There is no action you can take locally
to fix the problem.
The ENDEC will send EMAIL and blink its front panel Automatic light
after getting several failed poll attempts in a row. It will send
email and turn off the blinking light after getting several successes
in a row. This is to reduce the number of messages you get if the
server bounces up and down.
You can get more immediate feedback from the IPAWS stats display on
the tools page:, for example, you'll see something like this in the
IPAWS stats page:
Last successful poll : 5 minutes ago, Mon Aug 6 17:00:57 2012
Last failed poll : 0 minutes ago, Mon Aug 6 17:05:58 2012
This shows that worked a few minutes ago, but missed the most recent poll.
If the problem is with your local network, you'll see different types
of errors, and in particular you usually won't see "HTTP request
sent, awaiting response". You will see a failure to connect instead
- it won't get far enough to try to send a request. If you don't get
an IP address and a connecting message, you usually have a DNS
problem. If you get an IP address but can't get connected, you
usually have a gateway, router, or firewall problem.
This is the first outage of the public feed I've been aware of, and
I'm sure something has been learned as a result of it.
One suggestion would be to have a status site (hosted by a different
server) that would allow all of us to have a place to check on the
current IPAWS server status, so we don't generate all the phone calls
and emails this small outage caused.
Harold
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