Quick update on Site Monitor and Google App Engine D-Day

November 7, 2011

I’ve made a few changes to the way the monitor works in the hope that it will reduce the load on the app and thus the cost based on the new App Engine pricing. There are three implications you should be aware of if you use the monitor.

1) ‘Up’ emails are not sent anymore.
You’ll just have to trust the site is being checked, without the email confirmation.

2) Checking will be 24 times per day, roughly one hour apart
I’ve changed the way the monitoring queue works, so that the sites will be not be dequeued concurrently, and so checked more slowly. However they should all get checked every hour, approximately one hour apart. Failed sites get checked 2 further times to make sure they’re really down, these rechecks will happen almost straight away.

3) If your site is down for 96 consecutive checks (about 4 days) it will no longer be checked.
This is to stop sending endless emails for weeks when a site is taken offline.

Hopefully these changes will keep the monitor running for free from here on out.

Ashley

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Hi! I'm Ashley Schroder, a Software Engineer from New Zealand - this is a collection of notes on my experiences with Ecommerce Web Development, particularly Magento Development.

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One response to Quick update on Site Monitor and Google App Engine D-Day

  1. Thanks Ashley,

    I’ll reply for all those who probably won’t!
    Thanks for this, it is good to have another external check!

    Regards,

    Paul