Hi all,

Thank you for all of the detailed reports. We've made some changes
which should have improved the deadline exception situation,
especially when related to a large number of imports when spinning up
a new instance of an app. Since the fix has gone out we've been
closely monitoring these apps but if you are still seeing issues
please post here with your app ID, imports, and stack traces. Thanks
again and apologies for the latency induced errors.

Happy coding,

Jeff

On Sep 23, 2:10 pm, Jason C <[email protected]> wrote:
> We are using Django 1.0.2 via zipimport and the most recent
> appengine_django (r90), and are still seeing the
> DeadlineExceededErrors.
>
> Taro, please repost here again and update us in a day or two.
>
> j
>
> On Sep 23, 2:59 am, Taro Morimoto <[email protected]> wrote:
>
> > Hi!
>
> > I had the same problem with very high latencies and
> > DeadlineExceededErrors. I don't know if you have the same problem as I
> > did but I hope this helps for some of you.
>
> > I'm using django 1.0.2 with zip import. So I just updated my google-
> > app-engine-django helper library and the latencies are now gone. :)
>
> > Best regards,
> > Taro
>
> > On Sep 19, 2:17 am, Michael <[email protected]> wrote:
>
> > > I'm having the same problem (app: sovpad)
>
> > > Except from my logs can be found 
> > > here:http://groups.google.com/group/google-appengine-python/browse_thread/...
>
> > > On Sep 19, 1:05 am, bvelasquez <[email protected]> wrote:
>
> > > > I'm experiencing this also (app: jacob-6).  2 Sept. is when I started
> > > > noticing the issue.  Mostly in the morning (PST).  Later in the day,
> > > > the app is very fast, and responses come back after 200ms.  In the
> > > > morning, these same requests can take up 20000ms.
>
> > > > Barry
>
> > > > On Sep 18, 9:28 am, johnP <[email protected]> wrote:
>
> > > > > Dozens of people have been starring the following 
> > > > > item:http://code.google.com/p/googleappengine/issues/detail?id=1695
>
> > > > > Something happened after the 2 Sept deployment.
>
> > > > > On Sep 18, 7:42 am, Mahmoud <[email protected]> wrote:
>
> > > > > > Actually, our app (spont.appspot.com) has been seeing elevated 
> > > > > > latency
> > > > > > as well in the last two weeks. The code has not changed at all in
> > > > > > those two weeks.
>
> > > > > > -M
>
> > > > > > On Sep 18, 4:54 am, "Nick Johnson (Google)" 
> > > > > > <[email protected]>
> > > > > > wrote:
>
> > > > > > > Hi Brandon,
> > > > > > > What is your App ID?
>
> > > > > > > On Fri, Sep 18, 2009 at 8:46 AM, Brandon Thomson 
> > > > > > > <[email protected]> wrote:
>
> > > > > > > > I get bursty periods of very high request latency, with 
> > > > > > > > increasing
> > > > > > > > frequency over the last few weeks, which last from seconds to 
> > > > > > > > hours.
> > > > > > > > Usually the elevated latencies are in the 3-6s range but 
> > > > > > > > sometimes it
> > > > > > > > goes up into the 20-30s range. For example, here are some logs 
> > > > > > > > from a
> > > > > > > > few minutes ago:
>
> > > > > > > >      09-18 12:23AM 46.511 /checkStatus 500 2906ms 105cpu_ms
> > > > > > > > 8api_cpu_ms 0kb Pingdom.com_bot_version_1.4_(http://
> > > > > > > >www.pingdom.com/),gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 46.511 /checkStatus 500 2906ms 105cpu_ms
> > > > > > > > 8api_cpu_ms 0kb Pingdom.com_bot_version_1.4_(http://
> > > > > > > >www.pingdom.com/),gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 46.360 /stats 200 2771ms 105cpu_ms 
> > > > > > > > 8api_cpu_ms 5kb
> > > > > > > > w3m/0.5.2,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 46.118 /admin/tick 200 2706ms 113cpu_ms
> > > > > > > > 16api_cpu_ms 0kb Python-urllib/2.5,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 43.878 /admin/tick 200 3825ms 113cpu_ms
> > > > > > > > 16api_cpu_ms 0kb Python-urllib/2.5,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 41.639 /admin/tick 200 4983ms 113cpu_ms
> > > > > > > > 16api_cpu_ms 0kb Python-urllib/2.5,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 41.603 /stats 200 4602ms 105cpu_ms 
> > > > > > > > 8api_cpu_ms 5kb
> > > > > > > > w3m/0.5.2,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 41.603 /stats 200 4602ms 105cpu_ms 
> > > > > > > > 8api_cpu_ms 5kb
> > > > > > > > w3m/0.5.2,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 39.401 /admin/tick 200 4826ms 113cpu_ms
> > > > > > > > 16api_cpu_ms 0kb Python-urllib/2.5,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 39.401 /admin/tick 200 4826ms 113cpu_ms
> > > > > > > > 16api_cpu_ms 0kb Python-urllib/2.5,gzip(gfe),gzip(gfe)
> > > > > > > >      09-18 12:23AM 37.158 /admin/tick 200 4800ms 113cpu_ms
> > > > > > > > 16api_cpu_ms 0kb Python-urllib/2.5,gzip(gfe),gzip(gfe)
>
> > > > > > > > Pingdom is pinging from all over the globe and sees the problem 
> > > > > > > > so it
> > > > > > > > is definitely on the App Engine side.
>
> > > > > > > Can you elaborate on this?
>
> > > > > > > > Drilling down into my logs: Even when the requests are taking 
> > > > > > > > 6s+ to
> > > > > > > > return, from my first logging statement at the very top of my 
> > > > > > > > python
> > > > > > > > file to the last logging statement at the end of my request 
> > > > > > > > handler is
> > > > > > > > only 500ms of real time. So, I don't know where exactly the 
> > > > > > > > issue is,
> > > > > > > > but it doesn't seem to be inside my code.
>
> > > > > > > What imports, other than 'logging' are you doing before your 
> > > > > > > first logging
> > > > > > > statement?
>
> > > > > > > > These requests all have < 200ms of latency most of the time 
> > > > > > > > (although
> > > > > > > > the bad behavior has gotten increasingly frequent lately).
>
> > > > > > > > I thought this might be related to the problems the Django 
> > > > > > > > folks are
> > > > > > > > having with DeadlineExceeded errors... See
> > > > > > > >http://code.google.com/p/googleappengine/issues/detail?id=1695and
> > > > > > > > many other discussion threads linked therein.
>
> > > > > > > --
> > > > > > > Nick Johnson, Developer Programs Engineer, App Engine
> > > > > > > Google Ireland Ltd. :: Registered in Dublin, Ireland, 
> > > > > > > Registration Number:
> > > > > > > 368047
>
>
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