Comments on: App Engine Server Monitor

By: Eishay Smith

Eishay Smith — Mon, 22 Mar 2010 04:26:58 +0000

Thanks!
I’m using it as well, works nicely.

By: Steve

Steve — Mon, 18 Jan 2010 22:03:46 +0000

I believe it was httplib or httplib2, the latter is not included in Python itself so i may have included it in the code myself as a module.

The documentation for httplib says it supports arbitrary ports, and i think httplib2 does as well. I dropped httplib in favor of Google’s urlfetch because it was the only way to support https (appengine doesn’t support sockets).

By: Greg

Greg — Mon, 18 Jan 2010 21:36:05 +0000

Steve, what’s the other library? Can it be used to make requests to arbitrary ports, other than 80?

By: Steve

Steve — Sat, 02 Jan 2010 18:42:07 +0000

Yep that’s the one :)

By: Greg

Greg — Sat, 02 Jan 2010 18:41:02 +0000

Great, I assume this is the GV library? http://code.google.com/p/pygooglevoice/

I think I’ll give it a try. I’ll let you know how it works out.

By: Steve

Steve — Mon, 28 Dec 2009 18:16:59 +0000

Thanks! :) I’m aware of a few problems with URLfetch that i’ve been working on, i may drop it in favor of another library i was using before release which was much more reliable but did not directly support HTTPS.

Google Voice was my chosen route for SMS support since you already need a google account to use app engine, and presumably you could just enable GV for that account. The python library for GV works very well, and yes you can SMS yourself with it, but i simply haven’t gotten around to adding it in to the code yet :)

By: Greg

Greg — Mon, 28 Dec 2009 04:11:19 +0000

Thanks for this. I installed it quickly and it’s working well. I had a few issues that I wanted to share.

First, I took a server down and it was being reported as up. Turns out URL fetch was returning cached results. To fix this, I added in the max-age stuff in the fetch call. http://code.google.com/p/googleappengine/issues/detail?id=739

Second — this is more of a feature than an issue — I wanted to be notified both times if a server went down, came back up, and went down again in a 20 minute span. I just added server.notifylimiter = False in servercameback.

Are you actively looking into SMS notification? I wonder if there’s a way to Google Voice SMS myself — that would work for me.

Cheers.

Greg

By: ashley

ashley — Sun, 13 Dec 2009 10:35:02 +0000

Hi,

Wow just finished posting my own article on a GAE site monitor only to find I’m about 3 weeks too slow! Anyway, I’d love to merge some of your features in to mine, let me know your thoughts.

Cheers,
Ashley

article:
http://www.aschroder.com/2009/12/a-super-simple-magento-store-monitoring-tool-powered-by-google-app-engine/

app:
http://monitor.aschroder.com/

By: Steve

Steve — Wed, 09 Dec 2009 22:46:37 +0000

I’ve been evaluating ways to keep track of total uptime per month, week and so on, and more advanced reporting. It may require storing an incremented counter in the database, add one for each minute of downtime, and use a key-value system to store separate counters for each week or month. I’m workin on it though :)

By: Radomir

Radomir — Wed, 09 Dec 2009 21:56:23 +0000

Great work! I just setup the application in 2 minutes. :-)

Is it possible to see the uptime in % (say in a month) and review downtime log?