Hi there...

I have a cron job that is running once per day... Three days ago there was 
an error in the Log Console:

"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 204)"

Since then I'm getting an ApiProxy$UnknownException every day not caused by 
any of my code lines. So I do not know where to start looking. My app-id is 
fluxparticle-de. Can anyone give me a hint where to start? Or is my App 
Engine broken?

Here is the stacktrace:

com.google.apphosting.api.ApiProxy$UnknownException: An error occurred for the 
API request datastore_v3.Get().
        at com.google.apphosting.runtime.ApiProxyImpl.statusException(A
piProxyImpl.java:651)
        at com.google.apphosting.runtime.ApiProxyImpl$AsyncApiFuture.se
tRpcError(ApiProxyImpl.java:604)
        at com.google.apphosting.runtime.ApiProxyImpl$AsyncApiFuture.fa
ilure(ApiProxyImpl.java:592)
        at com.google.apphosting.runtime.stubby.StubbyCallbackAdapter.f
ailure(StubbyCallbackAdapter.java:25)
        at com.google.net.rpc3.client.RpcStub$RpcCallbackDispatcher$1.
runInContext(RpcStub.java:853)
        at com.google.tracing.TraceContext$TraceContextRunnable$1.run(T
raceContext.java:460)
        at com.google.tracing.CurrentContext.runInContext(CurrentContex
t.java:293)
        at com.google.tracing.TraceContext$AbstractTraceContextCallback
.runInInheritedContextNoUnref(TraceContext.java:319)
        at com.google.tracing.TraceContext$AbstractTraceContextCallback
.runInInheritedContext(TraceContext.java:311)
        at com.google.tracing.TraceContext$TraceContextRunnable.run(Tra
ceContext.java:457)
        at com.google.net.rpc3.client.RpcStub$RpcCallbackDispatcher.run
Callback(RpcStub.java:889)
        at com.google.net.rpc3.client.RpcStub$RpcCallbackDispatcher.rpc
Finished(RpcStub.java:899)
        at com.google.net.rpc3.client.RpcStub$RpcCallbackDispatcher.fai
lure(RpcStub.java:884)
        at com.google.net.rpc3.impl.client.RpcClientInternalContext.run
Callbacks(RpcClientInternalContext.java:1243)
        at com.google.net.rpc3.impl.client.RpcClientInternalContext.fin
ishRpcAndNotifyApp(RpcClientInternalContext.java:1137)
        at com.google.net.rpc3.impl.client.RpcNetChannel.afterFinishing
ActiveRpc(RpcNetChannel.java:1694)
        at com.google.net.rpc3.impl.client.RpcNetChannel.finishRpc(
RpcNetChannel.java:1508)
        at com.google.net.rpc3.impl.client.RpcNetChannel.handleResponse
(RpcNetChannel.java:3366)
        at com.google.net.rpc3.impl.client.RpcNetChannel.messageReceive
d(RpcNetChannel.java:3100)
        at com.google.net.rpc3.impl.client.RpcNetChannel.access$2900(
RpcNetChannel.java:184)
        at com.google.net.rpc3.impl.client.RpcNetChannel$TransportCallb
ack.receivedMessage(RpcNetChannel.java:4314)
        at com.google.net.rpc3.impl.client.RpcChannelTransportData$Tran
sportCallback.receivedMessage(RpcChannelTransportData.java:688)
        at com.google.net.rpc3.impl.wire.RpcBaseTransport.receivedMessa
ge(RpcBaseTransport.java:463)
        at com.google.apphosting.runtime.udrpc.UdrpcTransport$ClientAda
pter.receivedMessage(UdrpcTransport.java:350)
        at com.google.apphosting.runtime.udrpc.UdrpcTransport.dispatchP
acket(UdrpcTransport.java:196)
        at com.google.apphosting.runtime.udrpc.AbstractUdrpcTransport.r
eadPackets(AbstractUdrpcTransport.java:202)
        at com.google.apphosting.runtime.udrpc.AbstractUdrpcTransport.a
ccess$000(AbstractUdrpcTransport.java:30)
        at com.google.apphosting.runtime.udrpc.AbstractUdrpcTransport$1
.run(AbstractUdrpcTransport.java:57)
        at com.google.net.eventmanager.AbstractFutureTask$Sync.innerRun
(AbstractFutureTask.java:260)
        at com.google.net.eventmanager.AbstractFutureTask.run(AbstractF
utureTask.java:121)
        at com.google.net.eventmanager.EventManagerImpl.runTask(EventMa
nagerImpl.java:594)
        at com.google.net.eventmanager.EventManagerImpl.internalRunWork
erLoop(EventManagerImpl.java:1012)
        at com.google.net.eventmanager.EventManagerImpl.runWorkerLoop(E
ventManagerImpl.java:892)
        at com.google.net.eventmanager.WorkerThreadInfo.runWorkerLoop(W
orkerThreadInfo.java:161)
        at com.google.net.eventmanager.EventManagerImpl$WorkerThread.ru
n(EventManagerImpl.java:1877)

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  • [google-appengine] A... Sven Reinck

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