Hey Richard,
  Did you ever get an explanation / resolution for this?  I have been
seeing this same behavior across a lot of apps that I work with.  We
will see one or more queues just stop executing tasks for, typically,
several minutes, but I have seen this last as long as 20 minutes.


Robert





On Fri, May 18, 2012 at 10:19 PM, Richard Steventon <steven...@gmail.com> wrote:
> Nick,
>
> I shared a private google docs spreadsheet with you detailing average
> number of players per game for this year.
>
> Start at week 21.  Column A = (server) time.  Anytime the number of
> players in a game suddenly goes to zero... is because the taskqueue
> stopped running.
>
> When it restarts, one of two things happen:
> 1) It clears the queue (NO spike in user numbers.... ie: all
> unprocessed results from previous games get deleted/lost)
> 2) It runs the queue (spike in the user count.... ie: all unprocessed
> results from previous games get processed)
>
> -Bye
> -Richard
>
>
> On Fri, May 18, 2012 at 6:32 PM, Nicholas Verne <nve...@google.com> wrote:
>> Please give us your app id so we can investigate. Also, it would help
>> us if you could give some specific dates/times of outages.
>>
>> Thanks,
>>
>> Nick Verne
>>
>> On Sat, May 19, 2012 at 3:50 AM, Mind <steven...@gmail.com> wrote:
>>> I have an Android game whose server side is Python on AppEngine.
>>>
>>> The app processes the client requests.  These requests result in a need to
>>> update the client profile (player stats).  I offload this to a task.
>>>
>>> Tasks run fine some days.  On other days, the task queue randomly stops
>>> running and refuses to process any tasks.  Synchronous cron jobs also start
>>> late or not at all during this time.
>>>
>>> Outages can last several minutes to 10's of minutes.  They are not dependent
>>> of the volume of client requests (I graph everything) or time of day.  Some
>>> days it happens with 20 clients connected ... and other days it is just fine
>>> with over 200 clients connected at the same time.
>>>
>>> The statistics I don't care too much about, but I ALSO use tasks and CRON to
>>> control game flow, cycle to the next game board/etc.  So broken task queue
>>> means all my Android user's game clients stop working.
>>>
>>> Has anyone else observed anything similar or got any suggestions ?
>>>
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