I have a App engine Project in Google App Engine named : cwdataproject I also have a REST service Application deployed in Google App engine under same Project. I have Implemented REST service using Jersey with CORS implementation.REST service Application Project retrieving data from Google Cloud SQL and returning back to client.
Now, the behavior of REST service seems very unstable. Some time it is giving back result. and sometime it is not returning any data . But no error is there. This is from App Engine log : A 2014-05-14 11:41:27.581 200 298B 12ms /rest/messageservices/manufecturerlist?callback=createmanufactureroption [13/May/2014:23:11:27 -0700] "GET /rest/messageservices/manufecturerlist?callback=createmanufactureroption HTTP/1.1" 200 298 - "Mozilla/5.0 (Linux; U; Android 4.2.1; en-us; Lenovo P780_ROW Build/JOP40D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30" "cwdataproject.appspot.com" ms=12 cpu_ms=520 cpm_usd=0.000033 instance=00c61b117ce022f9f9bf9df99be6e4b0b6e58e app_engine_release=1.9.4 But same code was working hours back ;-) Here is a log which was returning data previously. No change has been done .. [13/May/2014:11:23:18 -0700] "GET /rest/messageservices/manufecturerlist?callback=createmanufactureroption HTTP/1.1" 200 560 - "Mozilla/5.0 (Linux; U; Android 4.2.1; en-us; Lenovo P780_ROW Build/JOP40D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30" "cwdataproject.appspot.com" ms=11543 cpu_ms=7280 cpm_usd=0.000063 loading_request=1 instance=00c61b117ce022f9f9bf9df99be6e4b0b6e58e app_engine_release=1.9.4 I only can see a difference *loading_request=1* Really no idea. !!! Can anybody help please .. My appengine-web.xml file looks as below ... <?xml version="1.0" encoding="utf-8"?> <appengine-web-app xmlns="http://appengine.google.com/ns/1.0";> <application>messageframework</application> <version>1</version> <!-- Allows App Engine to send multiple requests to one instance in parallel: --> <threadsafe>true</threadsafe> <!-- Configure java.util.logging --> <system-properties> <property name="java.util.logging.config.file" value="WEB-INF/logging.properties"/> </system-properties> <!-- HTTP Sessions are disabled by default. To enable HTTP sessions specify: <sessions-enabled>true</sessions-enabled> It's possible to reduce request latency by configuring your application to asynchronously write HTTP session data to the datastore: <async-session-persistence enabled="true" /> With this feature enabled, there is a very small chance your app will see stale session data. For details, see http://code.google.com/appengine/docs/java/config/appconfig.html#Enabling_Sessions --> </appengine-web-app> I have billing enabled for this GAE project. I have already 3 USD billed on it. I will not be able to use Cloud SQL qithout billing activated. I have found I need to do a shoutdown of instance at console.developers.google.com/project/apps~cwdataproject/… <https://console.developers.google.com/project/apps%7Ecwdataproject/appengine/instances> and then on the very next request it is restarting the instance and send the proper response back. But if i kept idle for one hour without any request. then from then onwards I am not getting any response back. again I have to restart the instance to get the response back. And these behaviour is observing for those seervices which are intaresting with cloud sql database. there are two services which are not interesting with database, those are working always Need help to solve it 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-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/d/optout.
