In fact I succeeded in keeping one instance alive using PingDom service.

But it still keeps starting new instances very frequently.

It looks like pending latency setting doesn't work at all (set to 15s min
for my app).

François


On Tue, Jan 22, 2013 at 11:43 PM, Cesium <cesiumpic...@gmail.com> wrote:

> Please accept my apology for being flippant.
>
> I am going to try an experiment inspired by Jeff's idea.
>
> Jeff wrote:
>
>> <cronentries>
>>     <cron>
>>         <url>/some-non-static-url</**url>
>>         <schedule>every 1 minutes</schedule>
>>     </cron>
>> </cronentries>
>> This will keep one instance warm.
>>
> Jeff
>
>
> But instead of a fixed 1 minute interval, it will be adaptive like a
> feedback control servo.
> Also, the sign of the feedback will be just the opposite of what you would
> expect.
> If the call to my app takes a long time, I will call it more often to keep
> the instance alive.
>
> Of course, this simple design will lead to much suffering and cost, so
> there will be limits placed
> on the call rate, feedback gain, etc.
>
> Just a thought,
> David
>
>
>
>
>
>
>
>
> On Tuesday, January 22, 2013 3:24:09 PM UTC-7, Francois Masurel wrote:
>>
>> Sadly, nothing changed for me :  20 loading requests over the last 30
>> minutes, instances are killed almost immediately.
>>
>>
>> On Tuesday, January 22, 2013 11:16:51 PM UTC+1, Cesium wrote:
>>>
>>> Step 1: Sprinkle sour Skittles on the floor. (Sour, NOT regular
>>> Skittles.)
>>> Step 2: Wait for Google to release the unicorns for feeding.
>>> Step 3: When unicorns eat sour skittles, they release low latency mojo.
>>> Step 4: How the heck should I know? I just sit on my rear, day after day
>>> and watch the scheduler's schizophrenic behavior! I did nothing!
>>>
>>> David
>>>
>>>
>>> On Tuesday, January 22, 2013 3:09:54 PM UTC-7, Francois Masurel wrote:
>>>>
>>>> Great ! But how did you get there?
>>>>
>>>> François
>>>>
>>>>
>>>> On Tuesday, January 22, 2013 5:28:48 PM UTC+1, Cesium wrote:
>>>>>
>>>>> For the record:
>>>>>
>>>>> Now my app is running so smooth on a single instance. No new instances
>>>>> being created. Latency is low.
>>>>>
>>>>> My depression is gone.
>>>>>
>>>>> Now, I am truly gobsmacked.
>>>>>
>>>>> David
>>>>>
>>>>>  --
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