On Thu, Dec 26, 2013 at 12:15 AM, YuchTing <[email protected]> wrote:

> My app in appengine java had met follow error from 12 hours ago (in
> console log):
>
> (*Error code 121)*
>
> It seems internal error in appengine and it will gone after a moment...
>



That's exactly correct. Error 121 is an App Engine internal error, your
application did nothing wrong. If you see these errors repeatedly though,
you can try forcing your app to move to different machines by changing the
frontend instance class to a higher class (more RAM/CPU) then back to the
original class size:
https://developers.google.com/appengine/docs/adminconsole/performancesettings#Setting_the_Frontend_Instance_Class


-----------------
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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