Hello,
I am running a streaming app in Spark 1.2.1. When running local everything
works fine. When I try on yarn-cluster it fails and I see ClassCastException
in the log (see below). I can run Spark (non-streaming) apps in the cluster
with no problem.
Any ideas here? Thanks in advance!
WARN scheduler.TaskSetManager: Lost task 1.0 in stage 0.0 (TID 1,
yarn-slave1): java.lang.ClassCastException:
org.apache.spark.storage.BlockManagerId cannot be cast to [B
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:61)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
at org.apache.spark.scheduler.Task.run(Task.scala:56)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:200)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
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