On Thursday, February 20, 2014 1:44:35 AM UTC+8, barryhunter wrote:
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> On Wed, Feb 19, 2014 at 5:05 AM, Tapir <[email protected] <javascript:>>wrote:
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>> On Wednesday, September 14, 2011 6:04:15 AM UTC+8, Rishi Arora wrote:
>>>
>>> It really doesn't matter it a second instance kicks in to process your 
>>> user-facing requests.  If your max_idle_instances is set to 1, then you're 
>>> only paying for one idle instance at any given time.  
>>
>>
>> Really?!  Any googler can confirm this? I set max-idle-instances as 1, 
>> but I am still charged more than 28 hours often recently.
>>
>
> Can still have one idle instance. So one active instance, and one idle, 
> means would use up the quota. 
>
> Or a spike where say three instances are started, and immidiately become 
> idle. They sill still be 'charged' for 15 minutes. 
>
> If at the end of the 15 minutes, they are not shutdown you will still be 
> 'charged' for 1 idle instance. But max_idle_instances means those two other 
> ones become free. 
>
>  
> If you want to avoid appengine keeping (and charging you for!) idle 
> instances, best to set max_idle_instances, back to 'automatic'
>

Do you mean set it 'automatic' will charge you less?
 

>
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> https://developers.google.com/appengine/docs/adminconsole/performancesettings#minimum
>

This document doesn't mention 'automatic'. 

I feel I really can't understand many GAE documents very well. 
I don't think my English reading is bad.


 

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