Well I've just tried an F2 and F3 with exactly the same results - one call to a particular handler just blows the memory completely. Seems to be a general failure around AppStats and Memcache usage today!
com.google.apphosting.api.ApiProxy$CancelledException: The API call memcache.Set() was explicitly cancelled. at com.google.apphosting.runtime.ApiProxyImpl$5.get(ApiProxyImpl.java:332) at com.google.apphosting.runtime.ApiProxyImpl$5.get(ApiProxyImpl.java:330) at com.google.appengine.tools.appstats.RecordingFuture.get(RecordingFuture.java:99) at com.google.appengine.tools.appstats.Recorder.processRecordingFuture(Recorder.java:418) at com.google.appengine.tools.appstats.Recorder.processAsyncRpc(Recorder.java:391) at com.google.appengine.tools.appstats.RecordingFuture.maybeRecordStats(RecordingFuture.java:131) at com.google.appengine.tools.appstats.RecordingFuture.get(RecordingFuture.java:101) at com.google.appengine.tools.appstats.RecordingFuture.get(RecordingFuture.java:20) at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:90) at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:90) at com.google.appengine.api.memcache.MemcacheServiceImpl.quietGet(MemcacheServiceImpl.java:27) at com.google.appengine.api.memcache.MemcacheServiceImpl.putAll(MemcacheServiceImpl.java:110) at com.google.appengine.tools.appstats.MemcacheWriter.persist(MemcacheWriter.java:240) at com.google.appengine.tools.appstats.MemcacheWriter.commit(MemcacheWriter.java:165) at com.google.appengine.tools.appstats.AppstatsFilter.doFilter(AppstatsFilter.java:151) -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine-java/-/ex00Q-jUDBsJ. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.