My app *sporadically* generates error 500 due to the following memcache
exception:
com.google.apphosting.api.ApiProxy$CancelledException: The API call
memcache.Get() was explicitly cancelled.
at
com.google.apphosting.runtime.ApiProxyImpl$5.get(ApiProxyImpl.java:367)
at
com.google.apphosting.runtime.ApiProxyImpl$5.get(ApiProxyImpl.java:364)
at
com.google.appengine.tools.appstats.RecordingFuture.get(RecordingFuture.java:108)
at
com.google.appengine.tools.appstats.Recorder.processRecordingFuture(Recorder.java:425)
at
com.google.appengine.tools.appstats.Recorder.processAsyncRpc(Recorder.java:398)
at
com.google.appengine.tools.appstats.RecordingFuture.maybeRecordStats(RecordingFuture.java:140)
at
com.google.appengine.tools.appstats.RecordingFuture.get(RecordingFuture.java:110)
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.memcache.MemcacheServiceImpl.quietGet(MemcacheServiceImpl.java:28)
at
com.google.appengine.api.memcache.MemcacheServiceImpl.get(MemcacheServiceImpl.java:51)
at
com.google.apphosting.runtime.jetty.MemcacheSessionStore.getSession(MemcacheSessionStore.java:36)
at
com.google.apphosting.runtime.jetty.SessionManager.loadSession(SessionManager.java:338)
at
com.google.apphosting.runtime.jetty.SessionManager.getSession(SessionManager.java:312)
at
org.mortbay.jetty.servlet.AbstractSessionManager.getHttpSession(AbstractSessionManager.java:237)
at org.mortbay.jetty.Request.getSession(Request.java:1235)
at
javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:216)
at
javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:193)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
I raised a production issue 7 hours ago and I haven't heard from Google.
The error's still happening.
Can somebody from Google take a look please? To think that just 2 days ago
I publicly recommended Google App Engine on Quora.
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