Google App Engine实例因ErrorCode 121而崩溃

Question

My GAE app suddenly stopped working last friday. I tried several times to start an instance in background, (both using cron and manually) but after a minute since the instance starts I get this error:

/cron/spreadsheet 500 4660ms 0kb instance=0 AppEngine-Google; 
(+http://code.google.com/appengine)

0.1.0.1 - - [17/Feb/2013:12:40:05 -0800] "GET /cron/spreadsheet HTTP/1.1" 500 0 - 
"AppEngine-Google; (+http://code.google.com/appengine)"
"backend.myclimagest.appspot.com" ms=4661 cpu_ms=692 queue_name=__cron 
task_name=5ed789ec52683cb170ed3c2cc4ec48c9 pending_ms=3651 exit_code=121 
instance=0 

W 2013-02-17 12:40:05.268
A problem was encountered with the process that handled this request, 
causing it to exit. This is likely to cause a new process to be used 
for the next request to your application. (Error code 121)

I don't know what to do since this error code is undocumented. I also tried to redeploy but no luck. Are you experiencing the same problem and have you maybe found a solution? I don't think it matters but the app is developed in Java using Eclipse. The app is in production so I really need to solve this issue as quickly as I can. Thank you

Answer 1

It seems your App Engine scheduler got problem. Try this, Removing the automatic settings from Performance settings which seeems to help. Google Groups

Check this Official Google page too Managing Your App's Resource Usage