OK, ready to deploy again, and of course I immediately ran into this issue (along with a bunch of problems related to channels).
Here are the logs. Note the 7-second gap between the request that created a new instance, and the immediately preceding instance. Note also that there was no warmup request. I now see in the documentation that warmup requests aren't guaranteed, so I'm not sure adding a warmup handler will actually help me; in any case, I haven't explicitly disabled them. So, yeah. No solution at this point, and random 10s delays are not acceptable. Takashi, can you analyze this and tell me what's going on? 1. 1. 2012-09-21 01:50:03.465 /api/game/80001/submit?messages=MOVE+Gray.Cross+600+136+135+134+2+false;MOVE+Gray.Queue+600+34+35+36+0+false&index=21 200 176ms 0kb Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B206 76.102.149.245 - - [21/Sep/2012:01:50:03 -0700] "POST /api/game/80001/submit?messages=MOVE+Gray.Cross+600+136+135+134+2+false;MOVE+Gray.Queue+600+34+35+36+0+false&index=21 HTTP/1.1" 200 192 - "Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B206" "titan-game-qa.appspot.com" ms=176 cpu_ms=163 cpm_usd=0.000080 instance=00c61b117c15f0ab71ada0d4f932c37adf981007 <https://appengine.google.com/instances?app_id=titan-game-qa&version_id=1.361909218547818204&key=00c61b117c15f0ab71ada0d4f932c37adf981007#00c61b117c15f0ab71ada0d4f932c37adf981007> 2. 1. 2012-09-21 01:49:50.460 /api/game/80001/submit?messages=SPLIT+Gray.Queue+Gray.Cross+Angel+Centaur+Centaur+Gargoyle&index=17 200 9609ms 0kb Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B206 76.102.149.245 - - [21/Sep/2012:01:49:50 -0700] "POST /api/game/80001/submit?messages=SPLIT+Gray.Queue+Gray.Cross+Angel+Centaur+Centaur+Gargoyle&index=17 HTTP/1.1" 200 187 - "Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B206" "titan-game-qa.appspot.com" ms=9609 cpu_ms=5063 cpm_usd=0.000080 loading_request=1 instance=00c61b117cf26825e763cc7957e0c35cc39d68 <https://appengine.google.com/instances?app_id=titan-game-qa&version_id=1.361909218547818204&key=00c61b117cf26825e763cc7957e0c35cc39d68#00c61b117cf26825e763cc7957e0c35cc39d68> 2. I2012-09-21 01:49:50.460 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 requ 3. 1. 2012-09-21 01:49:33.240 /api/game/80001/submit?messages=MARKERCHOICE+Black.Horn&index=14200 459ms 0kb Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9A405 76.102.149.245 - - [21/Sep/2012:01:49:33 -0700] "POST /api/game/80001/submit?messages=MARKERCHOICE+Black.Horn&index=14 HTTP/1.1" 200 136 - "Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9A405" "titan-game-qa.appspot.com" ms=459 cpu_ms=187 cpm_usd=0.000074 instance=00c61b117c15f0ab71ada0d4f932c37adf981007 <https://appengine.google.com/instances?app_id=titan-game-qa&version_id=1.361909218547818204&key=00c61b117c15f0ab71ada0d4f932c37adf981007#00c61b117c15f0ab71ada0d4f932c37adf981007> 4. 1. 2012-09-21 01:49:31.124 /api/game/80001/submit?messages=COLORCHOICE+Black&index=11200 244ms 0kb Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9A405 76.102.149.245 - - [21/Sep/2012:01:49:31 -0700] "POST /api/game/80001/submit?messages=COLORCHOICE+Black&index=11 HTTP/1.1" 200 129 - "Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9A405" "titan-game-qa.appspot.com" ms=244 cpu_ms=210 cpm_usd=0.000073 instance=00c61b117c15f0ab71ada0d4f932c37adf981007 <https://appengine.google.com/instances?app_id=titan-game-qa&version_id=1.361909218547818204&key=00c61b117c15f0ab71ada0d4f932c37adf981007#00c61b117c15f0ab71ada0d4f932c37adf981007> -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/bruR2wS3IGoJ. 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. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.