So you are not getting any actual error messages? Do you see requests showing up in the request log when expected? When you tell your app to do something does a request show up?
Are you sure you do not have a front-end issue? Robert On Wed, Apr 28, 2010 at 11:44 PM, WeShine Tech <intelltest.ad...@gmail.com> wrote: > Hello Robert, > The errors that I see are mostly warning for the CPU consumption > exceeding the quota limit. I read on some thread that if one of the url > requests exceeds the quota limit the application goes down. I just want to > confirm this. > Also this request is a simple async service (GWT). So if I just split > this service into multiple services will my issue be solved ? > Also once the application is down, when I can expect it to start again. > Answers to the rest of the questions: > Between the versions there have been some minor bug fixes. However I > checked the logs of the older version and realized the same log > regarding the CPU warning did exist at both the versions. So what I could > conclude is that may be the quota did not exceed the limit for my older > version because it had comparatively less load. > > I did check the whole log in detail and did not find any such log which > would say : > This request caused a new process to be started for your > application, and thus caused your application code to be loaded for > the first time. This request may thus take longer and use more CPU > than a typical request for your application. > And regarding the cold start, can I expect any message in the log > regarding the same ? > > > > On Wed, Apr 28, 2010 at 7:44 PM, Robert Kluin <robert.kl...@gmail.com> > wrote: >> >> Anupam, >> >> What are the actual errors you are seeing? Are errors in your >> app's error log? >> >> Further comments / questions inline: >> > > >> >> On Wed, Apr 28, 2010 at 12:31 AM, WeShine Tech >> <intelltest.ad...@gmail.com> wrote: >> > Hello Robert, >> > >> > Are you saying that you have other clients (customers) running the >> > same code on different deployments ? >> > No. So what happened is at my clients site the >> > application stopped responding. So I started using the earlier versions >> > of >> > my application and those seemed to work fine. >> >> What has changed between versions? Have you added additional request >> handlers, or otherwise increased the work that needs done to load your >> app? >> >> >> >> > When you say the log shows latency issues I assume you mean the >> > requests >> > are taking >> > a lot of CPU time? >> > That is correct. But the same requests work absolutely fine >> > otherwise. >> > So why would some requests take a lot of CPU time only on >> > some occasions where as work efficiently most of the times? Could you >> > share >> > some tippers for resolving this issue. >> >> If the app sits idle it will be unloaded from the app severs. As I >> understand, apps may be more aggressively unloaded during times when >> the overall traffic to app engine itself is high. What you are >> describing sounds like this could be the issue. >> >> Look in your apps info log for messages like: >> This request caused a new process to be started for your >> application, and thus caused your application code to be loaded for >> the first time. This request may thus take longer and use more CPU >> than a typical request for your application. >> >> >> >> >> >> > The application is not a very high traffic one because of its >> > nature. >> > However after receiving high amount of load for almost two hours it went >> > down. Also it has performed very well with more traffic in the past. So >> > I am >> > not sure it could be the Cold Start. >> >> This is almost the definition of the 'cold start' problem: it does >> well under load, but once there is a drop in traffic you get >> performance issues. >> >> >> >> > Thanks and Regards, >> > Anupam M. >> > >> > >> > >> > >> > On Wed, Apr 28, 2010 at 9:31 AM, Robert Kluin <robert.kl...@gmail.com> >> > wrote: >> >> >> >> Anupam, >> >> Are you saying that you have other clients (customers) running the >> >> same code on different deployments, or are you saying you have loaded >> >> this app more heavily while running the current code? When you say >> >> the log shows latency issues I assume you mean the requests are taking >> >> a lot of CPU time? >> >> >> >> It sounds like the app is not very high traffic. Could this be the >> >> cold start issue? If you hit the site a lot (once every couple >> >> seconds) does it respond OK? >> >> >> >> >> >> Robert >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> On Tue, Apr 27, 2010 at 11:35 PM, WeShine Tech >> >> <intelltest.ad...@gmail.com> wrote: >> >> > I did look into the problem and have been suggested that it could be >> >> > due >> >> > to >> >> > latency issues. Please could you guide me through as to how to fix >> >> > this. >> >> > I >> >> > have used the same code with more number of clients before but never >> >> > faced a >> >> > problem like this. >> >> > The logs also show latency issues. And I did run the older version of >> >> > my >> >> > application using the appspot url. The older version performed just >> >> > fine. >> >> > However I did not try running the application using the >> >> > "appname.appspot.com" url. >> >> > >> >> > >> >> > On Tue, Apr 27, 2010 at 11:44 PM, Robert Kluin >> >> > <robert.kl...@gmail.com> >> >> > wrote: >> >> >> >> >> >> Were there any actual exceptions in the app's log? >> >> >> >> >> >> Did you see the requests in the request log? >> >> >> >> >> >> If you were using a custom domain, could you access the site >> >> >> directly >> >> >> at the 'appname'.appspot.com url? >> >> >> >> >> >> Robert >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> On Mon, Apr 26, 2010 at 9:52 AM, WeShine Tech >> >> >> <intelltest.ad...@gmail.com> wrote: >> >> >> > Hello, >> >> >> > I have an application which requires resources just on some >> >> >> > particular days. However today my application actually failed at >> >> >> > my >> >> >> > clients site. The application logs do read some high CPU usage for >> >> >> > some of the url but that is it. It would completely stop >> >> >> > responding >> >> >> > at >> >> >> > times for all and any requests. Please suggest me some work around >> >> >> > for >> >> >> > this problem. I have started my billing and have allowed a large >> >> >> > number of resources to be consumed per day. The consumption shown >> >> >> > in >> >> >> > the admin console is as low as 1% of what has been allocated. >> >> >> > >> >> >> > Do let me know if there is any more information required to be >> >> >> > shared >> >> >> > from my side. But the problem is extremely critical and needs to >> >> >> > be >> >> >> > fixed as soon as possible. >> >> >> > >> >> >> > Any help is appreciated. >> >> >> > >> >> >> > Thanks and Regards, >> >> >> > Anupam M. >> >> >> > >> >> >> > -- >> >> >> > 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 >> >> >> "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 >> >> > "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 >> >> "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 >> > "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 >> "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 > "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 "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.
