Akka-Http - Multipart file upload - SubscriptionTimeoutException

[Andres Blanco]

Hi everyone,

We developed some code that executes a file upload, it was working fine for some test but it suddenly started failing with bigger file sizes ( > 120kb). It throws this exception:

akka.stream.impl.SubscriptionTimeoutException: Substream Source has not been materialized in 5000 milliseconds

at akka.stream.impl.fusing.SubSource.timeout(StreamOfStreams.scala:706)

at akka.stream.stage.GraphStageLogic$SubSourceOutlet.timeout(GraphStage.scala:1138)

at akka.stream.impl.fusing.PrefixAndTail$PrefixAndTailLogic.onTimer(StreamOfStreams.scala:134)

at akka.stream.stage.TimerGraphStageLogic.akka$stream$stage$TimerGraphStageLogic$$onInternalTimer(GraphStage.scala:1228)

at akka.stream.stage.TimerGraphStageLogic$$anonfun$akka$stream$stage$TimerGraphStageLogic$$getTimerAsyncCallback$1.apply(GraphStage.scala:1217)

at akka.stream.stage.TimerGraphStageLogic$$anonfun$akka$stream$stage$TimerGraphStageLogic$$getTimerAsyncCallback$1.apply(GraphStage.scala:1217)

at akka.stream.impl.fusing.GraphInterpreter.runAsyncInput(GraphInterpreter.scala:443)

at akka.stream.impl.fusing.GraphInterpreterShell$AsyncInput.execute(ActorGraphInterpreter.scala:453)

We've already configured akka.http.server.parsing.max-content-length to 100m with no change, the service is hosted behind an nginx service that has client_max_body_size = 100m. 

Any ideas?

[Konrad “ktoso” Malawski]

Please ask in one spot at the same time - it’s difficult to  track and match all the questions-that-already-were-answered..

Please also include code when asking such questions - I have to guess that you used the fileUpload directive, but that’s not the only way to handle uploads,

so we’re left guessing that you’re probably using that, and probably seeing https://github.com/akka/akka-http/issues/1216 

More details in the ticket,

Hope this helps

—

Konrad `kto.so` Malawski

Akka @ Lightbend

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