Hi Carl,

Can you let me know your app-id?

Regards,
Saket

On Thursday, 27 December 2012 20:01:30 UTC+1, Carl Schroeder wrote:
>
> I am still seeing java instances decomissioned after sub minute quiet 
> periods.  Given that it takes 20-30 seconds to spin one java instance up, 
> you should probably leave them alive for a bit longer than a few seconds. 
> Otherwise, for low traffic profiles, page loads for GAE java can take up to 
> 30 seconds. God help us if the scheduler thinks I need 2 new instances spun 
> up in series rather than parallel.
>
> FYI, people don't wait around for a minute for pages to load. They use 
> other services.
>
> Once again, due to unannounced pathological behavior of the instancing on 
> GAE, we are wasting our time re-implementing our java infrastructure on 
> AWS. At least, I hope it is a waste of our time...
>
>
> On Tuesday, December 25, 2012 4:00:26 PM UTC-8, Francois Masurel wrote:
>>
>> Hi Saket,
>>
>> Thanx for investigating the problem.
>>
>> Things seems to have improved significantly these last few days.
>>
>> On our Neustar reports, for an average page loading, we can see that we 
>> went from 
>> 6.65s<https://monitor.wpm.neustar.biz/reports/graph_log/#/?monitorIds=8bc3b100-b372-11e1-a749-9848e1660ab3&timeRange=last_24_hours&functionType=loadtime&graphType=line_chart&view=loadtime>
>>  (12/16) 
>> to 8.94s (12/18) and back to 
>> 2.57s<https://monitor.wpm.neustar.biz/reports/graph_log/#/?monitorIds=8bc3b100-b372-11e1-a749-9848e1660ab3&timeRange=last_24_hours&functionType=loadtime&graphType=line_chart&view=loadtime>
>>  (12/23).
>>
>> I can confirm that we don't see as much instance warm ups in our logs as 
>> we were used before, we went from every 3-4 minutes to 20-25 minutes.
>>
>> I definitely think things have changed on Google side as we haven't 
>> changed anything on our side.
>>
>> But some strange things are still going on at the moment (12/26 0:52 
>> UTC+1) as a dynamic instance has been up for more than 4 hours but has 
>> served only one request (cf. screenshot below).
>>
>> Thanx again Saket for your help.
>>
>> François
>>
>>
>> <https://lh6.googleusercontent.com/-ARDAA2Yu-NY/UNo-Bgn9SpI/AAAAAAAAyN8/NNC4QLzi93g/s1600/Instances+-+VinoCities+-+Google+Chrome.jpg>
>>
>>
>>
>>
>> On Monday, December 24, 2012 11:54:48 PM UTC+1, Saket Kumar wrote:
>>>
>>> Hi Francois,
>>>
>>> Are you still facing this issue? I did a small test for your application 
>>> and didn't find anything too bad from scheduler's perspective. I'm trying 
>>> to understand if it was a temporary glitch that was causing the issue or 
>>> something is wrong with scheduler's algorithm. Or if scheduler doesn't spin 
>>> instances properly if QPS is low.
>>>
>>> Here is series of events- 
>>>
>>> a.) Single resident was serving for 1 day, 03:26:37 minutes, serving 
>>> 9600 request
>>> b.) After serving 96 requests with raised QPS, new instance was created.
>>> c.) QPS lowered and the new instance was allowed to die.
>>> d.) Again the QPS was increased and new instance was created. Both 
>>> instances were handling requests at this point.
>>> e.) QPS lowered again, newly formed instance dies and older instance 
>>> starts serving 100% of the requests.
>>>
>>> -
>>> Saket
>>>
>>> On Saturday, 22 December 2012 12:18:00 UTC+1, Francois Masurel wrote:
>>>>
>>>> Hi Christina,
>>>>
>>>> For my personal case, my production app-id is "vncts1" with billing 
>>>> enabled.
>>>>
>>>> And the related issue is : 
>>>> https://code.google.com/p/googleappengine/issues/detail?id=7865
>>>>
>>>> As I said at the beginning of this thread, there are quite a few other 
>>>> threads related to this problem :
>>>>
>>>>
>>>> https://groups.google.com/forum/#!msg/google-appengine/cJcOrOE4JDc/uKFBbylFOxIJ
>>>>
>>>> https://groups.google.com/d/msg/google-appengine/8KiXRP-oU5I/Jf5kzcvyIiwJ
>>>>
>>>> https://groups.google.com/d/msg/google-appengine/NR_oV4znvks/KtkSmVQD2IgJ
>>>>
>>>> https://groups.google.com/d/msg/google-appengine/_znmrJwFMuM/V2epYOQ19L4J
>>>>
>>>> https://groups.google.com/d/topic/google-appengine/hg3BH8WOGWA/discussion
>>>>
>>>> https://groups.google.com/d/topic/google-appengine/UN5oCWkPsaA/discussion
>>>>
>>>> https://groups.google.com/d/topic/google-appengine/RneC9qDbeRE/discussion
>>>>
>>>> https://groups.google.com/d/topic/google-appengine/sLZcZoK-A3Y/discussion
>>>>
>>>> Thanx for you help.
>>>>
>>>> François
>>>>
>>>>
>>>>
>>>> On Saturday, December 22, 2012 3:15:05 AM UTC+1, Christina Ilvento 
>>>> wrote:
>>>>>
>>>>> Hi All,
>>>>>
>>>>> Would you mind sending app-ids that you're seeing this behavior for? 
>>>>> Please feel free to send them to me directly or to link any issues you 
>>>>> have 
>>>>> filed in our issue tracker so that we can investigate.
>>>>>
>>>>>
>>>>> Thanks,
>>>>> Christina
>>>>>
>>>>>
>>>>> On Fri, Dec 21, 2012 at 8:39 AM, Carl Schroeder <[email protected]
>>>>> > wrote:
>>>>>
>>>>>> I've been sacrificing unicorns to dark powers...clearly I have been 
>>>>>> doing it wrong.
>>>>>> That probably explains some unusual behavior in other parts of my app.
>>>>>> AFK pentagrams. :(
>>>>>>
>>>>>>
>>>>>> On Thursday, December 20, 2012 7:51:35 PM UTC-8, Cesium wrote:
>>>>>>>
>>>>>>> Ready for this?
>>>>>>>
>>>>>>> Now, a single instance survives for hours and hours, happily serving 
>>>>>>> requests with the usual low latency response time.
>>>>>>>
>>>>>>> This is just what Sir Brandon wrote about. Mysterious changes in the 
>>>>>>> system's behavior.
>>>>>>>
>>>>>>> I should note that I sprinkled rainbow Skittles across the floor to 
>>>>>>> attract the unicorns. They're back!
>>>>>>>
>>>>>>> David
>>>>>>>
>>>>>>>
>>>>>>>  -- 
>>>>>> You received this message because you are subscribed to the Google 
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>>>>>>
>>>>>> To post to this group, send email to [email protected].
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>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -- 
>>>>>
>>>>> Christina Ilvento | Google App Engine | [email protected] |
>>>>>  (650)-201-9399
>>>>>
>>>>>
>>>>> 

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