[amsat-bb] Fox Telemetry Server Outage

Mark L. Hammond marklhammond at gmail.com
Tue Feb 27 15:32:05 UTC 2018

Let's blame Clint ;)

Thanks Chris, Joe, whomever...for making it go again.

Mark N8MH

On Tue, Feb 27, 2018 at 10:24 AM, Chris Thompson <g0kla at arrl.net> wrote:

> Many may have noticed that amsat.org was offline for about 20 hours
> yesterday.  We are investigating the root cause.  Something impacted the
> TCP stack on the server.  That caused the telemetry server to spin out of
> control. In that state it did two things, neither of them good and neither
> of them in the design spec.
> Firstly, the telemetry server spewed error messages to the log at such a
> rate that it impacted the website and other systems on amsat.org.  A fix
> will be implemented so this does not happen again.
> Secondly, the telemetry server accepted connections from FoxTelem,
> confirmed it had received the data and then failed to process it. This
> should not be possible given the error handling logic, so we are trying to
> work out how to prevent in the future.
> Those of you who keep track of your uploads, will notice that some records
> were not updated yesterday, even though they were sent.  I'm going to
> release a tool to allow re-upload of the missing day.  Please don't purge
> your FOXDB files if you have data.
> Let me know if you have questions or suggestions
> 73
> Chris
> --
> Chris E. Thompson
> chrisethompson at gmail.com
> g0kla at arrl.net
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Mark L. Hammond [N8MH]

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