Mind, did you file a production issue? Not that it assures a
resolution but without details it is easy for GAE team to dismiss
posts like this.  I have been there...

On May 30, 1:18 pm, Mind <steven...@gmail.com> wrote:
> Robert,
>
> Still no response on this from anyone else.
>
> Just this week:
>  - Monday : no outages ... yes, some days have zero problems!
>  - Tuesday : 3 outages, incl one for 48 minutes!!!!!
>  - Today : 2 outages (so far)
>
> -R
>
> On May 22, 11:14 pm, Robert Kluin <robert.kl...@gmail.com> wrote:
>
>
>
>
>
>
>
> > 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 thetaskqueue
> > > 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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