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From Pa Rö <paul.roewer1...@googlemail.com>
Subject k means - waiting for dataset
Date Thu, 21 May 2015 09:11:36 GMT
hi flink community,

i have implement k-means for clustering temporal geo data. i use the
following github project and my own data structure:
https://github.com/apache/flink/blob/master/flink-examples/flink-java-examples/src/main/java/org/apache/flink/examples/java/clustering/KMeans.java

not i have the problem, that flink read the centroids from file and work
parallel futher. if i look at the results, i have the feeling, that the
prgramm load only one centroid point.

i work with flink 0.8.1, if i update to 0.9 milestone 1 i get the following
exception:
ERROR actor.OneForOneStrategy: exception during creation
akka.actor.ActorInitializationException: exception during creation
    at akka.actor.ActorInitializationException$.apply(Actor.scala:218)
    at akka.actor.ActorCell.create(ActorCell.scala:578)
    at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:425)
    at akka.actor.ActorCell.systemInvoke(ActorCell.scala:447)
    at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:262)
    at akka.dispatch.Mailbox.run(Mailbox.scala:218)
    at
akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386)
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
    at
scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
    at
scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
    at
scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at akka.util.Reflect$.instantiate(Reflect.scala:65)
    at akka.actor.Props.newActor(Props.scala:337)
    at akka.actor.ActorCell.newActor(ActorCell.scala:534)
    at akka.actor.ActorCell.create(ActorCell.scala:560)
    ... 9 more

how can i say flink, that it should be wait for loading dataset, and what
say this exception?

best regards,
paul

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