How long is the warmup time of your app? Can you show the configuration file of your app? (appengine-web.xml)
On Friday, February 28, 2014 1:02:28 AM UTC+8, de Witte wrote: > We don't use modules, why should you? Do you have a requirement which > cannot be done without them? > > > Op donderdag 27 februari 2014 02:58:56 UTC+1 schreef Rafael Sanches: >> >> De Witte, >> >> Do you have a multi module project? >> >> How do you handle that without module? The eclipse plugin doesn't work >> with that setup. >> >> thanks >> rafa >> >> >> On Wed, Feb 26, 2014 at 3:45 PM, de Witte <wd.de...@gmail.com> wrote: >> >>> We have been working with Java and GAE for several years now and so far >>> no problems. >>> >>> AngularJs + ExtJS 4.0 is a good combo for the front end. Although I >>> prefer GWT. >>> >>> Spring+Maven is a headache even without GAE. We have been avoiding it >>> and doing fine. >>> >>> >>> >>> >>> >>> >>> Op maandag 24 februari 2014 03:11:22 UTC+1 schreef Rafael Sanches: >>>> >>>> Not being updated doesn't mean it doesn't work properly. >>>> >>>> GAE + java is definitely frustrating, but some of your statements are a >>>> bit too broad ;) >>>> >>>> >>>> On Sun, Feb 23, 2014 at 12:44 AM, Tapir <tapi...@gmail.com> wrote: >>>> >>>>> >>>>> >>>>> On Sunday, February 23, 2014 1:47:28 PM UTC+8, Rafael Sanches wrote: >>>>>> >>>>>> Can you try and let us all know? it may be the solution you're >>>>>> looking for. >>>>>> >>>>>> >>>>> The Google App Engine module for Play has not been updated for 2 >>>>> years! :( >>>>> >>>>> For another one, Objectify , https://code.google.com/p/ >>>>> play-framework-objectify/, the showcase on this page need >15 seconds >>>>> to load. :( >>>>> >>>>> The decision is made, I will never use java for web development any >>>>> more, for many reasons, such as not support hot deploy, large memory >>>>> consumption, too many configurations, too many hidden elements, and too >>>>> slow startup on GAE. >>>>> >>>>> >>>>>> >>>>>> On Thu, Feb 20, 2014 at 8:29 PM, Tapir <tapi...@gmail.com> wrote: >>>>>> >>>>>>> >>>>>>> >>>>>>> On Friday, February 21, 2014 5:39:17 AM UTC+8, Rafael Sanches wrote: >>>>>>>> >>>>>>>> Have you tried playframework? They have optimizations to make your >>>>>>>> life easier when developing. >>>>>>>> >>>>>>>> My life is living hell right now when developing with maven and >>>>>>>> appengine. The play framework solves that by running their own thing. >>>>>>>> >>>>>>>> Read more: >>>>>>>> http://www.playframework.com/documentation/1.0/gae<http://www.google.com/url?q=http%3A%2F%2Fwww.playframework.com%2Fdocumentation%2F1.0%2Fgae&sa=D&sntz=1&usg=AFQjCNFObfH5yu11uniN9ReUNUVgFDtbGg> >>>>>>>> >>>>>>> >>>>>>> I don't think they can bypass the core GAE SDK lib. >>>>>>> The problem of GAE Java is at the core GAE SDK lib. >>>>>>> >>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Feb 19, 2014 at 7:24 PM, Tapir <tapi...@gmail.com> wrote: >>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Thursday, February 20, 2014 6:26:52 AM UTC+8, Emanuele Ziglioli >>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>> Great stuff >>>>>>>>>> >>>>>>>>>> hope you don't move to Go too soon! >>>>>>>>>> >>>>>>>>> >>>>>>>>> Why? >>>>>>>>> It is a way of no ways. >>>>>>>>> >>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Thursday, 20 February 2014 03:52:33 UTC+13, Tapir wrote: >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Tuesday, February 18, 2014 6:43:56 PM UTC+8, Tapir wrote: >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> On Tuesday, February 18, 2014 4:56:51 PM UTC+8, Rafael Sanches >>>>>>>>>>>> wrote: >>>>>>>>>>>>> >>>>>>>>>>>>> very interesting... >>>>>>>>>>>>> >>>>>>>>>>>>> can you tell me how you did that? in a maven build or only via >>>>>>>>>>>>> eclipse? >>>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> neither, I did it manually. >>>>>>>>>>>> >>>>>>>>>>>> ok, the new test result: >>>>>>>>>>>> 1. if I remove all jar files from the war/WEB-INF/lib, the >>>>>>>>>>>> warmup time is about 2.3 seconds. >>>>>>>>>>>> 2. if I put the only the core app engine sdk jar file in >>>>>>>>>>>> war/WEB-INF/lib, but doesn't reference it, the warmup time is >>>>>>>>>>>> about 2.9 >>>>>>>>>>>> seconds. >>>>>>>>>>>> 3. if I put "DatastoreService datastore = >>>>>>>>>>>> DatastoreServiceFactory.getDatastoreService();" in the jsp >>>>>>>>>>>> file but do nothing eslse, the warmup time is 3.5 seconds >>>>>>>>>>>> 4. if I put a query in the default jsp file, the warmup time is >>>>>>>>>>>> 4.7 seconds. >>>>>>>>>>>> 5. if I convert query result as list, the warmup time is 6 >>>>>>>>>>>> seconds. >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> made some new tests today. The results are some different. >>>>>>>>>>> >>>>>>>>>>> ======================================= >>>>>>>>>>> >>>>>>>>>>> First, the impact of number of lib jar files: >>>>>>>>>>> 1. no lib jar files, warm up time = 3 seconds (slower than >>>>>>>>>>> yesterday) >>>>>>>>>>> 2. one core lib jar file, no refs, warm up time = 5 seconds >>>>>>>>>>> (slower than yesterday) >>>>>>>>>>> 3. four core lib jar files (the ones under sdk user folder), no >>>>>>>>>>> refs, warm up time = 5.7 seconds >>>>>>>>>>> 4. fifty-four jar files (used in my projects) , no refs, warm up >>>>>>>>>>> time = 6.2 seconds >>>>>>>>>>> >>>>>>>>>>> So, obviously, the core GAE SDK lib files have a big impact on >>>>>>>>>>> the warm up time. >>>>>>>>>>> >>>>>>>>>>> ======================================== >>>>>>>>>>> >>>>>>>>>>> Second, number of references of core sdk lib. >>>>>>>>>>> 1. no refs, 3.5 seconds >>>>>>>>>>> 2. fewer refs, 4.4 seconds, by adding "DatastoreService >>>>>>>>>>> datastore = DatastoreServiceFactory.getDatastoreService(); >>>>>>>>>>> Key guestbookKey = KeyFactory.createKey("Guestbook", >>>>>>>>>>> guestbookName);" >>>>>>>>>>> 3. more refs, 5.5 seconds, by adding "Query query = new >>>>>>>>>>> Query("Greeting", guestbookKey).addSort("date", Query.SortDirection. >>>>>>>>>>> DESCENDING); List<Entity> greetings = >>>>>>>>>>> datastore.prepare(query).asList(FetchOptions.Builder.withLim >>>>>>>>>>> it(5));" >>>>>>>>>>> >>>>>>>>>>> So, the first references to core lib class will also increase >>>>>>>>>>> the warm up time. In this example, only part of core classes are >>>>>>>>>>> refed, if >>>>>>>>>>> there are more, the warmup time would be longer. >>>>>>>>>>> >>>>>>>>>>> ======================================== >>>>>>>>>>> >>>>>>>>>>> The performance of GAE instances varies much in the tests. So >>>>>>>>>>> the result may be not very accurate, but I think the conclusions >>>>>>>>>>> are >>>>>>>>>>> reliable. >>>>>>>>>>> >>>>>>>>>>> Final conclusion: using pure jsp/servlet will not save a GAE >>>>>>>>>>> java project. >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> so, I think it is very clear that the datastore API is main >>>>>>>>>>>> cause of long warmup time. A simple datastoe calling will increase >>>>>>>>>>>> the >>>>>>>>>>>> warmup time much. In above example, the total increased warmup >>>>>>>>>>>> caused by >>>>>>>>>>>> datastore APIs is more than 3 seconds. >>>>>>>>>>>> >>>>>>>>>>>> Otherwaise, scanning the core app engine sdk jar will cost 0.5 >>>>>>>>>>>> second. >>>>>>>>>>>> >>>>>>>>>>>> So, @GAE_team, please optimize your datastore APIs. Done! >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> On Tue, Feb 18, 2014 at 12:44 AM, Tapir <tapi...@gmail.com>wrote: >>>>>>>>>>>>> >>>>>>>>>>>>>> Ok, I removed all core GAE jar files under SDK/lib/user >>>>>>>>>>>>>> Now the warmup time dropped from 5-7 seconds to 3-4 seconds. >>>>>>>>>>>>>> >>>>>>>>>>>>>> What is appengine-api-labs-1.x.x.jar? is it essential? >>>>>>>>>>>>>> And must the appengine-api-1.0-sdk-1.x.x.jar be included in >>>>>>>>>>>>>> the project war directory? >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> On Tuesday, February 18, 2014 1:59:15 PM UTC+8, Tapir wrote: >>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> On Tuesday, February 18, 2014 4:33:16 AM UTC+8, Emanuele >>>>>>>>>>>>>>> Ziglioli wrote: >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Not sure where my reply went. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> On Tuesday, February 18, 2014 3:57:37 AM UTC+8, Emanuele >>>>>>>>>>>>>>>>> Ziglioli wrote: >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> Our warmup time was 15 seconds, then I looked at the >>>>>>>>>>>>>>>>>> hello world project that the GAE plugin generates with one >>>>>>>>>>>>>>>>>> servlet. >>>>>>>>>>>>>>>>>> That took 2 seconds to startup (once the servlet was hit). >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> On F2 instance? >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> Haven't seen much difference between F1 and F2 when it >>>>>>>>>>>>>>>> comes to warmup time. >>>>>>>>>>>>>>>> Most time seems to be spent actually loading jars. >>>>>>>>>>>>>>>> Initialization could be as little as 3s with our project, F2 >>>>>>>>>>>>>>>> would a bit >>>>>>>>>>>>>>>> better but not so much >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> why? looks not reasonable. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> My experience is the modules feature will spend your money. >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> I haven't seen many people using modules yet. Can't they be >>>>>>>>>>>>>>>> configured to be F1 like non default versions? >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> should be. >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> -- >>>>>>>>>>>>>> You received this message because you are subscribed to the >>>>>>>>>>>>>> Google Groups "Google App Engine" group. >>>>>>>>>>>>>> To unsubscribe from this group and stop receiving emails from >>>>>>>>>>>>>> it, send an email to google-appengi...@googlegroups.com. >>>>>>>>>>>>>> To post to this group, send email to >>>>>>>>>>>>>> google-a...@googlegroups.com. >>>>>>>>>>>>>> Visit this group at http://groups.google.com/group >>>>>>>>>>>>>> /google-appengine. >>>>>>>>>>>>>> For more options, visit https://groups.google.com/grou >>>>>>>>>>>>>> ps/opt_out. >>>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> -- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "Google App Engine" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to google-appengi...@googlegroups.com. >>>>>>>>> To post to this group, send email to google-a...@googlegroups.com. >>>>>>>>> Visit this group at http://groups.google.com/group >>>>>>>>> /google-appengine. >>>>>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Google App Engine" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to google-appengi...@googlegroups.com. >>>>>>> To post to this group, send email to google-a...@googlegroups.com. >>>>>>> Visit this group at http://groups.google.com/group/google-appengine. >>>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>>> >>>>>> >>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Google App Engine" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to google-appengi...@googlegroups.com. >>>>> To post to this group, send email to google-a...@googlegroups.com. >>>>> Visit this group at http://groups.google.com/group/google-appengine. >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Google App Engine" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to google-appengi...@googlegroups.com. >>> To post to this group, send email to google-a...@googlegroups.com. >>> Visit this group at http://groups.google.com/group/google-appengine. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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