On Mon, Jun 7, 2010 at 20:38, Howard Lewis Ship <hls...@gmail.com> wrote:
> That's interesting, that GAE shuts down your instances. Yes, its a big issue for some projects, so now google is working to impoement support for dedicated JVMs: "The work is in the progress but we should wait for the results. Here is the news from the Google I/O. See starting from 44:12 http://code.google.com/events/io/2010/sessions/whats-hot-in-java-for-app-engine.html - Dedicated JVMs - Will cost money" > There's a bit of > Tapestry based on the idea that the application is long running, so it's OK > if it takes a moment to start up initially. Under GAE that's not the case > ... perhaps Tapestry under GAE should be even a bit lazier about loading > and > instantiating. > > When GAE shuts down the instance, is it undeploying the WAR? I don't know. I'm not even sure whether there is a WAR, actually. I can see in logs that sometime GAE starts a new JVM process, but sometimes I see just Tapestry initialization with building services through AppModule. > All told, I > think the most significant amount of time spent starting up a T5 app is the > initial load of all those classes. I can see these during the Selenium > integration tests, where the second test app to start up (all within the > same JVM) is much faster because all the framework classes have already > been > loaded. > > According to starting log request (see below), it takes ~13 seconds (from 11.00.02.201 to 11.00.15.399) for tapestry to build my services and render index page. Compare it to 236 milliseconds total (!) for the second request to the same page (when JMV is warm and caching is in scene). The other time (~ 4,8 seconds) is some generic infrastructure startup (from 10:59:57.418 to 11.00.02.201). This time is the same for non-tapestry starting requests. I just realized I've never turned on debug logging level for tapestry & google code in production, will do this and see. 1. 06-07 10:59PM 57.418 / 200 18215ms 20740cpu_ms 304api_cpu_ms 3kb Mozilla/5.0 (Windows; U; Windows NT 6.0; ru; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729),gzip(gfe) 109.95.252.98 - dmitry.gusev [07/Jun/2010:23:00:15 -0700] "GET / HTTP/1.1" 200 3763 "http://ping-service.appspot.com/"; "Mozilla/5.0 (Windows; U; Windows NT 6.0; ru; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729),gzip(gfe)" 2. I 06-07 11:00PM 00.033 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->24<- dmitrygusev.tapestry5.gae.ProfilingDelegate.buildStackTrace:37 dm 3. I 06-07 11:00PM 00.065 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->21<- dmitrygusev.tapestry5.gae.ProfilingDelegate.buildStackTrace:37 dm 4. D 06-07 11:00PM 02.201 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'LazyJPATransactionManager'. 5. D 06-07 11:00PM 03.220 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'TimingFilter'. 6. D 06-07 11:00PM 03.225 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'Utf8Filter'. 7. D 06-07 11:00PM 03.255 org.apache.tapestry5.ioc.internal.ServiceBuilderMethodInvoker createObject: Invoking method dmitrygusev.ping.services.AppModule.buildUtf8Filter(Reques 8. D 06-07 11:00PM 03.261 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'Application'. 9. D 06-07 11:00PM 03.263 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'ScheduleDAO'. 10. D 06-07 11:00PM 03.318 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'AccountDAO'. 11. D 06-07 11:00PM 03.342 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'JobDAO'. 12. D 06-07 11:00PM 03.371 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'RefDAO'. 13. D 06-07 11:00PM 03.423 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'JobResultDAO'. 14. D 06-07 11:00PM 03.459 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'GAEHelper'. 15. D 06-07 11:00PM 03.461 org.apache.tapestry5.ioc.internal.ServiceBuilderMethodInvoker createObject: Invoking method dmitrygusev.ping.services.AppModule.buildGAEHelper(Request 16. D 06-07 11:00PM 03.472 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'JobExecutor'. 17. D 06-07 11:00PM 03.477 org.apache.tapestry5.ioc.internal.ConstructorServiceCreator createObject: Invoking constructor dmitrygusev.ping.services.JobExecutor() (at JobExecutor 18. D 06-07 11:00PM 03.479 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'Mailer'. 19. D 06-07 11:00PM 03.489 org.apache.tapestry5.ioc.internal.ConstructorServiceCreator createObject: Invoking constructor dmitrygusev.ping.services.Mailer() (at Mailer.java:17) 20. D 06-07 11:00PM 03.521 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'MemcacheService'. 21. D 06-07 11:00PM 03.544 org.apache.tapestry5.ioc.internal.ServiceBuilderMethodInvoker createObject: Invoking method dmitrygusev.ping.services.AppModule.buildApplication(Sched 22. D 06-07 11:00PM 03.544 org.apache.tapestry5.ioc.internal.ServiceBuilderMethodInvoker createObject: Invoking method dmitrygusev.ping.services.AppModule.buildTimingFilter(Logg 23. D 06-07 11:00PM 03.553 org.apache.tapestry5.ioc.internal.ConstructorServiceCreator createObject: Invoking constructor dmitrygusev.ping.services.dao.impl.cache.AccountDAOImpl 24. D 06-07 11:00PM 03.554 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'Cache'. 25. D 06-07 11:00PM 03.593 org.apache.tapestry5.ioc.internal.AbstractMethodInvokingInstrumenter invoke: Invoking method dmitrygusev.ping.services.AppModule.adviseTransactions(JP 26. D 06-07 11:00PM 03.689 org.apache.tapestry5.ioc.internal.ServiceBuilderMethodInvoker createObject: Invoking method dmitrygusev.ping.services.AppModule.buildCache(Logger) (at 27. I 06-07 11:00PM 03.710 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->19<- ...LocalMemorySoftCache.get:64 ...AccountDAOImplCache.getAccount: 28. D 06-07 11:00PM 03.716 org.apache.tapestry5.ioc.internal.ServiceBuilderMethodInvoker createObject: Invoking method dmitrygusev.ping.services.AppModule.buildLazyJPATransactio 29. I 06-07 11:00PM 03.977 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.BeginTransaction: ->21<- ...AppModule$3$1.assureTxBegin:279 ...AppModule$ 30. I 06-07 11:00PM 04.003 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.Get: ->23<- ...AppModule$3$1.merge:309 ...AccountDAOImpl.update:65 ...Acc 31. I 06-07 11:00PM 04.065 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Set: ->22<- ...LocalMemorySoftCache.put:116 ...AccountDAOImplCache.update:54 32. I 06-07 11:00PM 04.084 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.Put: ->18<- ...AppModule$3.commit:413 ...Application.trackUserActivity:39 33. I 06-07 11:00PM 04.128 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.Commit: ->43<- ...AppModule$3.commit:413 ...Application.trackUserActivity 34. D 06-07 11:00PM 04.175 org.apache.tapestry5.ioc.internal.ModuleImpl create: Creating service 'AccessController'. 35. D 06-07 11:00PM 04.175 org.apache.tapestry5.ioc.internal.ServiceBuilderMethodInvoker createObject: Invoking method dmitrygusev.ping.services.AppModule.buildAccessController( 36. I 06-07 11:00PM 12.166 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S user.CreateLogoutURL: ->18<- ...GAEHelper.createLogoutURL:53 ...TopBar.getLogoutURL:19 37. D 06-07 11:00PM 12.317 org.apache.tapestry5.ioc.internal.ConstructorServiceCreator createObject: Invoking constructor dmitrygusev.ping.services.dao.impl.cache.RefDAOImplCach 38. D 06-07 11:00PM 12.321 org.apache.tapestry5.ioc.internal.AbstractMethodInvokingInstrumenter invoke: Invoking method dmitrygusev.ping.services.AppModule.adviseTransactions(JP 39. I 06-07 11:00PM 12.408 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->23<- ...LocalMemorySoftCache.get:64 ...RefDAOImplCache.getRefs:67 ...A 40. D 06-07 11:00PM 12.413 org.apache.tapestry5.ioc.internal.ConstructorServiceCreator createObject: Invoking constructor dmitrygusev.ping.services.dao.impl.cache.ScheduleDAOImp 41. D 06-07 11:00PM 12.417 org.apache.tapestry5.ioc.internal.AbstractMethodInvokingInstrumenter invoke: Invoking method dmitrygusev.ping.services.AppModule.adviseTransactions(JP 42. I 06-07 11:00PM 12.470 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->27<- ...LocalMemorySoftCache.get:64 ...ScheduleDAOImplCache.find:42 .. 43. I 06-07 11:00PM 12.492 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.BeginTransaction: ->21<- ...AppModule$3$1.assureTxBegin:279 ...AppModule$ 44. I 06-07 11:00PM 12.550 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.Get: ->29<- ...AppModule$3$1.find:359 ...ScheduleDAOImpl.find:41 ...Sched 45. I 06-07 11:00PM 13.819 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.RunQuery: ->1172<- ...AppModule$3$1.find:359 ...ScheduleDAOImpl.find:41 . 46. I 06-07 11:00PM 14.000 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.Commit: ->20<- ...AppModule$3.commit:413 ...Application.getAvailableJobs: 47. I 06-07 11:00PM 15.048 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->18<- ...LocalMemorySoftCache.get:64 ...RefDAOImplCache.getRefs:84 ...A 48. I 06-07 11:00PM 15.072 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->21<- ...LocalMemorySoftCache.get:64 ...AccountDAOImplCache.find:18 ... 49. I 06-07 11:00PM 15.095 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->22<- ...LocalMemorySoftCache.get:64 ...AccountDAOImplCache.find:18 ... 50. I 06-07 11:00PM 15.118 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->22<- ...LocalMemorySoftCache.get:64 ...AccountDAOImplCache.find:18 ... 51. I 06-07 11:00PM 15.146 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->27<- ...LocalMemorySoftCache.get:64 ...AccountDAOImplCache.find:18 ... 52. I 06-07 11:00PM 15.180 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->33<- ...LocalMemorySoftCache.get:64 ...AccountDAOImplCache.find:18 ... 53. I 06-07 11:00PM 15.399 dmitrygusev.ping.services.AppModule$1 service: Request time: 11848 ms Second request: 1. 1. 06-07 11:19PM 08.651 / 200 266ms 345cpu_ms 73api_cpu_ms 3kb Mozilla/5.0 (Windows; U; Windows NT 6.0; ru; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729),gzip(gfe) 109.95.252.98 - dmitry.gusev [07/Jun/2010:23:19:08 -0700] "GET / HTTP/1.1" 200 3772 "http://ping-service.appspot.com/"; "Mozilla/5.0 (Windows; U; Windows NT 6.0; ru; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729),gzip(gfe)" 2. I 06-07 11:19PM 08.678 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->21<- dmitrygusev.tapestry5.gae.ProfilingDelegate.buildStackTrace:37 dm 3. I 06-07 11:19PM 08.702 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Get: ->23<- dmitrygusev.tapestry5.gae.ProfilingDelegate.buildStackTrace:37 dm 4. I 06-07 11:19PM 08.818 dmitrygusev.ping.services.AppModule$1 service: Request time: 106 ms 5. I 06-07 11:19PM 08.881 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S datastore_v3.Put: ->60<- dmitrygusev.tapestry5.gae.ProfilingDelegate.buildStackTrace:3 6. I 06-07 11:19PM 08.907 dmitrygusev.tapestry5.gae.ProfilingDelegate makeSyncCall: GAE/S memcache.Set: ->24<- dmitrygusev.tapestry5.gae.ProfilingDelegate.buildStackTrace:37 dm > On Mon, Jun 7, 2010 at 7:01 AM, Thiago H. de Paula Figueiredo < > thiag...@gmail.com> wrote: > > > On Mon, 07 Jun 2010 10:42:52 -0300, Dmitry Gusev <dmitry.gu...@gmail.com > > > > wrote: > > > > This is exactly what I mean, I don't want tapestry to load even once for > >> some requests. GAE shutdown/startup instances very often (one new > instance > >> per ~3 minues) and this consumes additional resources. > >> > > > > Oops, I forgot this GAE characteristic and what you said makes sense now. > > :) > > > > -- > > Thiago H. de Paula Figueiredo > > Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, > > and instructor > > Owner, Ars Machina Tecnologia da Informação Ltda. > > http://www.arsmachina.com.br > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > > For additional commands, e-mail: users-h...@tapestry.apache.org > > > > > > > -- > Howard M. Lewis Ship > > Creator of Apache Tapestry > > The source for Tapestry training, mentoring and support. Contact me to > learn > how I can get you up and productive in Tapestry fast! > > (971) 678-5210 > http://howardlewisship.com > -- Dmitry Gusev AnjLab Team http://anjlab.com
