I expected the thread pool to be pegged at 100 threads, but watching in
visual vm showed 24 threads (default). Poking around the object structure
in the debugger, I found nested deep under the flowmaterializer was a
maxsize of 64 (also default).
-r
On Thursday, January 15, 2015 at 5:34:05 PM UTC-8, Randy Fox wrote:
>
> I am trying to assign a dispatcher to be used for my http server (using
> the new Akka HTTP Server) and can’t get it to honor my pool size settings.
> Logs show it is using the dispatcher, but visualvm shows it is not using
> the core pool size settings. Loos like it might be using the defaults for
> a thread-pool-executor.
>
>
> All I did was modify the example:
>
> 1. import akka.http.Http
> 2. import akka.stream.FlowMaterializer
> 3.
> 4. implicit val system = ActorSystem()
> 5. implicit val materializer = FlowMaterializer(*MaterializerSettings*(
> *system*).withDispatcher(*“myhttpRequestHandler.dispatcher"*))
> 6.
> 7. val serverBinding = Http(system).bind(interface = "localhost", port
> = 8080)
> 8. serverBinding.connections.foreach { connection => // foreach
> materializes the source
> 9. println("Accepted new connection from " +
> connection.remoteAddress)
> 10. }
> 11. …
>
> myhttpRequestHandler {
>
> dispatcher {
>
> type = Dispatcher
>
> executor = *"thread-pool-executor"*
>
> name = httprequesthandler-dispatcher
>
> thread-pool-executor {
>
> core-pool-size-min = 100
>
> core-pool-size-factor = 2.0
>
> core-pool-size-max = 100
>
> }
>
> throughput = 5
>
> }
>
> }
>
> [INFO] [2015-01-15 17:24:27,516] [DUDE-myhttpRequestHandler.dispatcher-79]
> HttpRequestHandler(akka://DUDE): Accepted new connection from /
> 127.0.0.1:54046
>
> What am I missing?
>
> Thanks,
>
> Randy Fox
>
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