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https://issues.apache.org/jira/browse/MAHOUT-1950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15903807#comment-15903807
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Hudson commented on MAHOUT-1950:
--------------------------------
SUCCESS: Integrated in Jenkins build Mahout-Quality #3446 (See
[https://builds.apache.org/job/Mahout-Quality/3446/])
MAHOUT-1950 fixes CLI dirvers missing classes, need to make sure this (pat: rev
f8f8f127231781bca0b981c26e2387bfad3958c2)
* (edit) spark/src/main/scala/org/apache/mahout/sparkbindings/package.scala
> Unread Block Data in Spark Shell Pseudo Cluster
> -----------------------------------------------
>
> Key: MAHOUT-1950
> URL: https://issues.apache.org/jira/browse/MAHOUT-1950
> Project: Mahout
> Issue Type: Bug
> Components: Mahout spark shell
> Affects Versions: 0.13.0
> Environment: Spark 1.6.3 Cluster / Pseudo Cluster / YARN Cluster (all
> observed)
> Reporter: Trevor Grant
> Assignee: Trevor Grant
> Priority: Blocker
>
> When doing an operation in the Spark Shell on a Pseudo Cluster, a
> `java.lang.IllegalStateException: unread block data` error is thrown.
> Research and stack trace implies there is some issue with serialization.
> Other issues with spark in cluster mode, hint that the Kryo Jars aren't being
> shipped around.
> Toying has shown that:
> `$SPARK_HOME/bin/spark-shell --jars
> "/opt/mahout/math-scala/target/mahout-math-scala_2.10-0.13.0-SNAPSHOT.jar,/opt/mahout/math/target/mahout-math-0.13.0-SNAPSHOT.jar,/opt/mahout/spark/target/mahout-spark_2.10-0.13.0-SNAPSHOT.jar,/opt/mahout/spark/target/mahout-spark_2.10-0.13.0-SNAPSHOT-dependency-reduced.jar"
> -i $MAHOUT_HOME/bin/load-shell.scala --conf
> spark.kryo.referenceTracking=false --conf
> spark.kryo.registrator=org.apache.mahout.sparkbindings.io.MahoutKryoRegistrator
> --conf spark.kryoserializer.buffer=32k --conf
> spark.kryoserializer.buffer.max=600m --conf
> spark.serializer=org.apache.spark.serializer.KryoSerializer`
> works, and should be used in place of:
> https://github.com/apache/mahout/blob/master/bin/mahout#L294
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