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https://issues.apache.org/jira/browse/SPARK-1813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sandy Ryza updated SPARK-1813:
------------------------------

    Description: 
It would be nice to have a method in SparkConf that makes it really easy to 
turn on Kryo serialization and register a set of classes.

Using Kryo currently requires all this:
{code}
import com.esotericsoftware.kryo.Kryo
import org.apache.spark.serializer.KryoRegistrator

class MyRegistrator extends KryoRegistrator {
  override def registerClasses(kryo: Kryo) {
    kryo.register(classOf[MyClass1])
    kryo.register(classOf[MyClass2])
  }
}

val conf = new SparkConf().setMaster(...).setAppName(...)
conf.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
conf.set("spark.kryo.registrator", "mypackage.MyRegistrator")
val sc = new SparkContext(conf)
{code}

It would be nice if it just required this:
{code}
SparkConf.setKryo(Array(classOf[MyClass1], classOf[MyClass2]))
{code}

  was:
It would be nice to have a method in SparkConf that makes it really easy to 
turn on Kryo serialization and register a set of classes.

Using Kryo currently requires all this:
{code}
import com.esotericsoftware.kryo.Kryo
import org.apache.spark.serializer.KryoRegistrator

class MyRegistrator extends KryoRegistrator {
  override def registerClasses(kryo: Kryo) {
    kryo.register(classOf[MyClass1])
    kryo.register(classOf[MyClass2])
  }
}

val conf = new SparkConf().setMaster(...).setAppName(...)
conf.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
conf.set("spark.kryo.registrator", "mypackage.MyRegistrator")
val sc = new SparkContext(conf)
{code}

It would be nice if it just required this:
{code}
SparkConf.setKryo(Array(classOf[MyFirstClass, classOf[MySecond]))
{code}


> Add a utility to SparkConf that makes using Kryo really easy
> ------------------------------------------------------------
>
>                 Key: SPARK-1813
>                 URL: https://issues.apache.org/jira/browse/SPARK-1813
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 1.0.0
>            Reporter: Sandy Ryza
>
> It would be nice to have a method in SparkConf that makes it really easy to 
> turn on Kryo serialization and register a set of classes.
> Using Kryo currently requires all this:
> {code}
> import com.esotericsoftware.kryo.Kryo
> import org.apache.spark.serializer.KryoRegistrator
> class MyRegistrator extends KryoRegistrator {
>   override def registerClasses(kryo: Kryo) {
>     kryo.register(classOf[MyClass1])
>     kryo.register(classOf[MyClass2])
>   }
> }
> val conf = new SparkConf().setMaster(...).setAppName(...)
> conf.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
> conf.set("spark.kryo.registrator", "mypackage.MyRegistrator")
> val sc = new SparkContext(conf)
> {code}
> It would be nice if it just required this:
> {code}
> SparkConf.setKryo(Array(classOf[MyClass1], classOf[MyClass2]))
> {code}



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