ello..
Can somebody help me ? I found that my app (Application ID:
dynamicpathfind) didn't work properly since the maintenance
yesterday.It still can't work properly now!!!
I didn't change any of my code,but now,when i requset a
service, it seems to spend more time to response than before . When
the heavy load task is requested (it can work correctly before the
maintenance) , it caused "DeadlineExceededError" .
Here are the info shown by the app engine:
<class 'google.appengine.runtime.DeadlineExceededError'>:
Traceback (most recent call last):
File "/base/data/home/apps/dynamicpathfind/2.343233095557591169/
main.py", line 557, in main
run_wsgi_app(app)
File "/base/python_runtime/python_lib/versions/1/google/appengine/
ext/webapp/util.py", line 97, in run_wsgi_app
run_bare_wsgi_app(add_wsgi_middleware(application))
File "/base/python_runtime/python_lib/versions/1/google/appengine/
ext/webapp/util.py", line 115, in run_bare_wsgi_app
result = application(env, _start_response)
File "/base/python_runtime/python_lib/versions/1/google/appengine/
ext/webapp/__init__.py", line 513, in __call__
handler.post(*groups)
File "/base/data/home/apps/dynamicpathfind/2.343233095557591169/
main.py", line 228, in post
self.findpath(self.withoutflow)
File "/base/data/home/apps/dynamicpathfind/2.343233095557591169/
main.py", line 338, in findpath
nh = self.manhattan(neighbor)
File "/base/data/home/apps/dynamicpathfind/2.343233095557591169/
main.py", line 266, in manhattan
for q in msg:
File "/base/python_runtime/python_lib/versions/1/google/appengine/
ext/db/__init__.py", line 1685, in __iter__
return self.run()
File "/base/python_runtime/python_lib/versions/1/google/appengine/
ext/db/__init__.py", line 1669, in run
iterator = raw_query.Run(rpc=rpc)
File "/base/python_runtime/python_lib/versions/1/google/appengine/
api/datastore.py", line 1148, in Run
return self._Run(**kwargs)
File "/base/python_runtime/python_lib/versions/1/google/appengine/
api/datastore.py", line 1177, in _Run
datastore_pb.QueryResult(), rpc)
File "/base/python_runtime/python_lib/versions/1/google/appengine/
api/datastore.py", line 192, in _MakeSyncCall
rpc.wait()
File "/base/python_runtime/python_lib/versions/1/google/appengine/
api/apiproxy_stub_map.py", line 460, in wait
self.__rpc.Wait()
File "/base/python_runtime/python_lib/versions/1/google/appengine/
api/apiproxy_rpc.py", line 112, in Wait
rpc_completed = self._WaitImpl()
File "/base/python_runtime/python_lib/versions/1/google/appengine/
runtime/apiproxy.py", line 108, in _WaitImpl
rpc_completed =
_apphosting_runtime___python__apiproxy.Wait(self)<class
'google.appengine.runtime.DeadlineExceededError'>:
------------------------------------------------------------------------------------------------------------------------
Can somebody give me a help ? Is the problem cauesd by latency ? or
there was some changes after the maintenance ?
How can i fix it ?
B.T.W.: my English is so poor .sorry
On 7月6日, 下午9時55分, Viðar Svansson <vidarsv...@gmail.com> wrote:
> The notification would be sent before it enters read-only state so
> there is time to save data as you assumed.
> We could write the capability state to a three layered cache (memory,
> memcache, and datastore).
>
> But like you said, there are other ways to check this during a r-o
> mode and a quick memcache put might be the best way. I haven't
> research what is the optimal approach here.
> Regardless, that does not help us if we need to perform some work
> before entering r-o mode.
>
> Let's say that the notification is sent one hour in advance. Then we
> might want to:
> * Prioritize critical background processing work so it completes
> before the deadline.
> * Disable non-essential work to minimize overall workload when the app
> enters r-o mode.
> * Notify our users that our app will soon enter a r-o state and that
> features will be disabled.
> * Notify developers that missed the email for some reason (gmail
> marked it as spam, etc).
> * If the app is a service, notify other apps that it is to go offline.
>
> Of course, it would also help if the notification included an
> estimation of the downtime.
>
> Given the frequent downtimes, it is essential that there is a way to
> handle them more gracefully than the current approach allows. At least
> if we want to build non-toy apps.
>
> - Viðar
>
>
>
> On Tue, Jul 6, 2010 at 12:20 PM, Barry Hunter <barrybhun...@gmail.com> wrote:
> > But what would you do with the notification?
> > You can't put it in memcache (memcache is usually disabled too) and, trying
> > to put it in the datastore (provided you can do it before it actully goes
> > read-only), will probably be no more efficient than trying a real write
> > anyway.
> > But that does lead to possibly a quick way to test, try a Memcache set.
> > "will instead return False for set() calls ..... In addition, memcache API
> > calls will return immediately during this period, without any additional
> > latency."
>
> > 2010/7/6 Viðar Svansson <vidarsv...@gmail.com>
>
> >> Hi
>
> >> It would be nice if AppEngine would post a message to our apps before
> >> it enters maintenance mode and again when it resumes to normal
> >> operation mode. This would allow us to disable features that require
> >> writing to the datastore. I realize we can catch the capability
> >> exceptions but that means we need to try to write first, which is not
> >> good enough IMO.
>
> >> Regards,
> >> Viðar
>
> >> On Sun, Jul 4, 2010 at 4:45 AM, Jan Z <jan.zawad...@gmail.com> wrote:
> >> > The last scheduled outages were arranged during the weekend - this
> >> > made life a great deal easier, particularly as the Capability API
> >> > wasn't working etc.
>
> >> > Could we please aim to keep outages to weekends until we've gone
> >> > through a couple without any hitches?
>
> >> > Thanks!
>
> >> > J
>
> >> > On Jul 1, 6:51 am, "Ikai L (Google)" <ika...@google.com> wrote:
> >> >> Hey guys,
>
> >> >> I just wanted to point out there are upcoming maintenance periods
> >> >> scheduled
> >> >> for July 7th and July 14th at 5pm Pacific. More details here:
>
> >> >>http://groups.google.com/group/google-appengine-downtime-notify/brows...
>
> >> >> Normally, I wouldn't post these notifications to this group, as they
> >> >> belong
> >> >> in the "downtime notify" group, however, users are reporting that this
> >> >> message went into their spam folder. Can anyone verify this, or let me
> >> >> know
> >> >> in this thread if this message was correctly delivered?
>
> >> >> If you want to be notified of upcoming maintenance periods, make sure
> >> >> to
> >> >> join this group:
>
> >> >>http://groups.google.com/group/google-appengine-downtime-notify
>
> >> >> We're doing our best to minimize these periods in the future, but there
> >> >> are
> >> >> times when these periods will be absolutely necessary.
>
> >> >> --
> >> >> Ikai Lan
> >> >> Developer Programs Engineer, Google App Engine
> >> >> Blog:http://googleappengine.blogspot.com
> >> >> Twitter:http://twitter.com/app_engine
> >> >> Reddit:http://www.reddit.com/r/appengine
>
> >> > --
> >> > You received this message because you are subscribed to the Google
> >> > Groups "Google App Engine" group.
> >> > To post to this group, send email to google-appeng...@googlegroups.com.
> >> > To unsubscribe from this group, send email to
> >> > google-appengine+unsubscr...@googlegroups.com.
> >> > For more options, visit this group at
> >> >http://groups.google.com/group/google-appengine?hl=en.
>
> >> --
> >> You received this message because you are subscribed to the Google Groups
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> >> To unsubscribe from this group, send email to
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>
> > --
> > Barry
>
> > -www.nearby.org.uk-www.geograph.org.uk-
>
> > --
> > You received this message because you are subscribed to the Google Groups
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> > To unsubscribe from this group, send email to
> > google-appengine+unsubscr...@googlegroups.com.
> > For more options, visit this group at
> >http://groups.google.com/group/google-appengine?hl=en.- 隱藏被引用文字 -
>
> - 顯示被引用文字 -
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