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From Gary Malouf <>
Subject Kryo Issue on Spark 1.0.1, Mesos 0.18.2
Date Fri, 25 Jul 2014 18:27:56 GMT
After upgrading to Spark 1.0.1 from 0.9.1 everything seemed to be going
well.  Looking at the Mesos slave logs, I noticed:

ERROR KryoSerializer: Failed to run spark.kryo.registrator

My has the following when I run the Spark Shell:

export MESOS_NATIVE_LIBRARY=/usr/local/lib/

export MASTER=mesos://zk://n-01:2181,n-02:2181,n-03:2181/masters

export ADD_JARS=/opt/spark/mx-lib/verrazano-assembly.jar

# -XX:+UseCompressedOops must be disabled to use more than 32GB RAM

SPARK_JAVA_OPTS="-Xss2m -XX:+UseCompressedOops
-Dspark.local.dir=/opt/mesos-tmp -Dspark.executor.memory=4g
-Dspark.kryoserializer.buffer.mb=16 -Dspark.akka.askTimeout=30"

I was able to verify that our custom jar was being copied to each worker,
but for some reason it is not finding my registrator class.  Is anyone else
struggling with Kryo on 1.0.x branch?

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