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Imat
Imat

Reputation: 520

Front End Instance Hours reach limit super fast

I am terribly worried why my Google App Engine Application consumes super fast to its Front End Instance Hours. It's like 1 hour a day and then my Instance hour is reach its quota. Why I am experiencing this? I already read some articles regarding on this but it seems not solved. What is the right value of Idle Instance and Pending Latency? Thanks for helping guys.

Upvotes: 0

Views: 568

Answers (2)

Nick
Nick

Reputation: 1822

In your Application Dashboard, go to Application Settings

Under performance, check the Frontend Instance Class - An F1 will cost you one instance hour and hour, F2 will be 2, etc. You probably want it set to F1.

Set pending and idle instances to automatic-automatic - this means appengine will scale down your instances to the minimum required.

Assuming you have low volume and no particular memory or CPU requirements, these settings will allow you to run all day for free.

If you are running any backends (check under the Main -> Backends ), these will consume instance hours as well based on the type (B1, B2 etc). You can make these more cost effective by making them dynamic.

Upvotes: 1

Andy King
Andy King

Reputation: 1662

My guess is that your instances are staying active for the default 12 hours after the last activity, which, for a Cloud SQL instance in a test environment, causes a lot of extra charges. I haven't yet determined how to programmatically shutdown instances, but you can change the default idle time before shutdown in the appengine-web.xml file (for Java), or the app.yaml file (for Python). I changed my ".xml" file so that my instances shut down after five minutes of inactivity by adding the following lines immediately before the final </appengine-web-app> line:

<basic-scaling>
  <idle-timeout>5m</idle-timeout>
</basic-scaling>

I found this information on the following page: https://developers.google.com/appengine/docs/java/modules/

The Python information can be found here: https://developers.google.com/appengine/docs/python/modules/

Upvotes: 0

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