I think its not related to whether the app is idle or not. My app has constant requests (> 8 req/s all the time) for the whole day everyday but still seeing a lot of these from time to time.
Its even more frustrating is that I have to pay for all these extra CPU consumed because of deadline exceeded on DB get or put. I am currently spending more than $20USD per day for hosting on appengin, wondering if it would be much cheaper if it is on AWS... On Sep 23, 5:40 pm, Carlos Ble <ble.jur...@gmail.com> wrote: > Jesus! the sooner I write the email, the sooner I get the 500 again :'-( > > I better shut up > > 2010/9/23 Carlos Ble <ble.jur...@gmail.com> > > > > > > > Hi guys, > > Yesterday we deployed a version using precompilacion. app.yaml: > > > ... > > api_version: 1 > > > derived_file_type: > > - python_precompiled > > > handlers: > > ... > > > We also have a monitoring tool that makes a request to the home page every > > 4 minutes, and a selenium test every 15 minutes. That helps keeping the app > > alive, so that when users come to visit after some inactivity they don't get > > the 500 error. Don't know if this is bad for google but it is definitively > > good for our users and that is what matters to us. > > > Since yesterday night, we haven't seen the app fail. > > Hope that helps to you guys :-S > > > 2010/9/23 James Saull <james.sa...@gmail.com> > > > I have noticed that if my application is idle for a while I am likely > >> to get the "request was aborted..." message. But then when I retry the > >> request it is likely to respond. I can then click around the > >> application quickly and responsively. If I then leave it for a short > >> while it goes back into failure mode. > > >> Has Google got some aggressive garbage collecting going on? I.e. idle > >> apps are unloaded very quickly but cannot be reloaded into the engine > >> quickly enough to serve the first request? This would explain the > >> service dashboard showing 100% uptime because the apps being pinged by > >> the monitoring tool are kept alive and loaded by the engine -i.e. they > >> are effectively not allowed to idle and be unloaded due to the > >> monitoring activity? > > >> Don't want to write a cron job to keep my app alive! > > >> On Sep 23, 9:13 am, James Saull <james.sa...@gmail.com> wrote: > >> > I am finding my app works for a while and then stops and then comes > >> > back again etc. This is now the third day of being unstable after > >> > being stable for ages. I haven't changed the app at all. The main URI > >> > normally averages: 57ms latency and 79cpu_ms. One page which is just a > >> > Django template page and makes no calls to memcache or the DB gets > >> > errors like this: > > >> > "Request was aborted after waiting too long to attempt to service your > >> > request. This may happen sporadically when the App Engine serving > >> > cluster is under unexpectedly high or uneven load. If you see this > >> > message frequently, please contact the App Engine team." > > >> > Glad to see Google Engineers apparently ignoring this. I love the > >> wayhttp://code.google.com/status/appengineshowsthat AppEngine is > >> > running fine. What rubbish! > > >> > I use Azure and AWS and this is proving to be the worst cloud platform > >> > of the lot so far whilst promising to be the most interesting for > >> > certain class of application. Confidence in Google is draining fast. > >> > Yes I know it is preview but Azure in Beta was far better and there > >> > were engineers looking in the groups and scouring twitter etc. Would > >> > you consider GAE for production applications if the service dashboard > >> > says "100% perfect" when clearly it is not, and the engineers are not > >> > engaging after a few days? > > >> > Very disappointed. > > >> > On Sep 23, 7:07 am, Eric Ka Ka Ng <ngk...@gmail.com> wrote: > > >> > > i'm NOT using Django so i guess it's not related to importing Django > >> modules > > >> > > the problem for me, was even for some very simple request which > >> usually > >> > > takes <50ms, would still be facing deadlineExceedError. > > >> > > but one common properties for all these long latency calls are, yes, > >> they > >> > > are retrieving something from DS, so i think it's sth related to DS > >> get > > >> > > the problem happened yesterday, and now seems the latency is getting > >> normal. > >> > > not sure if G has done anything about it... > > >> > > On 23 September 2010 13:45, Raymond C. <windz...@gmail.com> wrote: > > >> > > > Really disappointed that after 24 hours and still no one from Google > >> > > > is responding, or at least tell us someone is looking at it... > > >> > > > On Sep 23, 10:46 am, ego008 <ego...@gmail.com> wrote: > >> > > > > Same here.http://gaefons.appspot.com/ > > >> > > > > 2010/9/22 James Saull <james.sa...@gmail.com> > > >> > > > > > I am using Django as is bundled by default by GAE and I am > >> getting > >> > > > > > failures again today. It happened for most of yesterday - was > >> fine > >> > > > > > this morning and now failing again. Even the simple pages which > >> > > > > > normally take a few cpu cycles. I can access the dashboard and > >> view my > >> > > > > > data from there no problem. > > >> > > > > > On Sep 22, 3:18 pm, Blixt <andreasbl...@gmail.com> wrote: > >> > > > > > > It's probably part due to using Django 1.1, since you are the > >> third > >> > > > > > > person reporting this problem using Django 1.1 (assuming you > >> are > >> > > > using > >> > > > > > > it :) > > >> > > > > > > On Sep 22, 3:52 pm, Fredrik Bonander < > >> > > > carl.fredrik.bonan...@gmail.com> > >> > > > > > > wrote: > > >> > > > > > > > Same here. Could this be related to using django 1.1? > > >> > > > > > > > ..fredrik > > >> > > > > > > > On Sep 22, 2010, at 11:10 AM, Blixt wrote: > > >> > > > > > > > > Yup, same here. Maybe related to: > >> > > > > > > > > - > > >>http://groups.google.com/group/google-appengine/browse_thread/thread/. > >> > > > .. > >> > > > > > > > > and > >> > > > > > > > > - > > >>http://groups.google.com/group/google-appengine/browse_thread/thread/. > >> > > > .. > > >> > > > > > > > > On Sep 22, 3:52 am, Eric Ka Ka Ng <ngk...@gmail.com> > >> wrote: > >> > > > > > > > >> Have great troubles in serving requests today, even with > >> the > >> > > > very > >> > > > > > simple one > >> > > > > > > > >> which usually takes <50ms!! What's wrong with GAE? Any > >> system > >> > > > > > maintenance or > >> > > > > > > > >> incident happening? > > >> > > > > > > > >> here is one of the log > > >> > > > > > > > >> 500 10530ms 0cpu_ms 0kb > >> > > > > > > > >> 09-21 06:48PM 05.643 > > >> > > > > > > > >> Request was aborted after waiting too long to attempt to > >> service > >> > > > > > your > >> > > > > > > > >> request. This may happen sporadically when the App Engine > >> > > > serving > >> > > > > > > > >> cluster is under unexpectedly high or uneven load. If you > >> see > >> > > > this > >> > > > > > > > >> message frequently, please contact the App Engine team. > > >> > > > > > > > >> - eric > > >> > > > > > > > > -- > >> > > > > > > > > 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<google-appengine%2Bunsubscrib > >> > > > > > e...@googlegroups.com><google-appengine%2Bunsubscrib > >> e...@googlegroups.com><google-appengine%2Bunsubscrib > >> > > > e...@googlegroups.com> > >> > > > > > . > >> > > > > > > > > For more options, visit this group athttp:// > >> > > > > > groups.google.com/group/google-appengine?hl=en. > > >> > > > > > > > -- > >> > > > > > > > Fredrik Bonander > >> > > > > > > > carl.fredrik.bonan...@gmail.com > >> > > > > > > > +46 70 943 5441 > > >> > > > > > > > - the infinite power of the creative mind - > > >> > > > > > -- > >> > > > > > 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-appengine@googlegroups.com > >> > > > . > >> > > > > > To unsubscribe from this group, send email to > >> > > > > > google-appengine+unsubscr...@googlegroups.com<google-appengine%2Bunsubscrib > >> > > > > > e...@googlegroups.com><google-appengine%2Bunsubscrib > >> e...@googlegroups.com><google-appengine%2Bunsubscrib > >> > > > e...@googlegroups.com> > >> > > > > > . > >> > > > > > For more options, visit this group at > >> > > > > >http://groups.google.com/group/google-appengine?hl=en. > > >> > > > > -- > >> > > > > GAE粉丝团http://gaefons.appspot.com/ > > >> > > > -- > >> > > > 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<google-appengine%2Bunsubscrib > >> > > > e...@googlegroups.com><google-appengine%2Bunsubscrib > >> e...@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 > >> "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<google-appengine%2Bunsubscrib > >> e...@googlegroups.com> > >> . > >> For more options, visit this group at > >>http://groups.google.com/group/google-appengine?hl=en. > > > -- > > Carlos Ble > >www.MavenCharts.com > >www.iExpertos.com > >www.carlosble.com > > -- > Carlos Blewww.MavenCharts.comwww.iExpertos.comwww.carlosble.com -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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