Emergency stop button

[mrdavidlaing]

Overnight support start need a super simple "emergency stop" system to stop the Latency Collectors hitting the live API in the case of some kind of live emergency.

Currently we've given them a set of PowerShell scripts that will stop all the nodes tagged as isLatencyCollector=true; but this method is a little error prone. It also won't stop none AWS nodes (once we get those running).

Ideally we need a simple web interface they can log into, and a single "STOP" button.

[fandrei]

I've added enable/disable buttons here: config.metrics.labs.cityindex.com/Config.aspx It works by creating a file "~/CIAPILatencyCollectorConfig/stop.txt" under config site, and when this file is present all monitors don't execute any polling.

[mrdavidlaing]

Cool. How long does stopping take?

And how can you tell if it has worked?

On Tuesday, August 14, 2012, Andrei Faber wrote:

I've added enable/disable buttons here: config.metrics.labs.cityindex.com/Config.aspx It works by creating a file "~/CIAPILatencyCollectorConfig/stop.txt" under config site, and when this file is present all monitors don't execute any polling.

— Reply to this email directly or view it on GitHubhttps://github.com/fandrei/AppMetrics/issues/106#issuecomment-7719316.

David Laing Open source @ City Index - github.com/cityindex http://davidlaing.com Twitter: @davidlaing

[fandrei]

Clients check settings every 15 seconds, so stopping time should be something around this. You can try to disable and check if current latency report shows no data.

[mrdavidlaing]

http://config.metrics.labs.cityindex.com/Config.aspx gives me

  401 - Unauthorized: Access is denied due to invalid credentials.

Without asking for any.

[fandrei]

You should call it from the server only.

[mrdavidlaing]

It needs to be accessibly via the web by anyone with the correct username password.

Getting / giving the overnight support guys RDP access introduces too many challenges with firewalls & training

On 15 August 2012 04:55, Andrei Faber notifications@github.com wrote:

You should call it from the server only.

— Reply to this email directly or view it on GitHubhttps://github.com/fandrei/AppMetrics/issues/106#issuecomment-7747417.

David Laing Open source @ City Index - github.com/cityindex http://davidlaing.com Twitter: @davidlaing

[fandrei]

done

[mrdavidlaing]

Awesome; can confirm it works, and is pretty responsive

However, can we have a little more UI explaining:

(1) What this is (2) How to check whether polling is working or not.

eg: http://webwhiteboard.com#mcxrc8ht

[fandrei]

Done.