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[SPARK-2859] Update url of Kryo project in related docs #1782

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[SPARK-2859] Update url of Kryo project in related docs #1782

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4 changes: 2 additions & 2 deletions docs/tuning.md
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Expand Up @@ -32,7 +32,7 @@ in your operations) and performance. It provides two serialization libraries:
[`java.io.Externalizable`](http://docs.oracle.com/javase/6/docs/api/java/io/Externalizable.html).
Java serialization is flexible but often quite slow, and leads to large
serialized formats for many classes.
* [Kryo serialization](http://code.google.com/p/kryo/): Spark can also use
* [Kryo serialization](https://github.com/EsotericSoftware/kryo): Spark can also use
the Kryo library (version 2) to serialize objects more quickly. Kryo is significantly
faster and more compact than Java serialization (often as much as 10x), but does not support all
`Serializable` types and requires you to *register* the classes you'll use in the program in advance
Expand Down Expand Up @@ -68,7 +68,7 @@ conf.set("spark.kryo.registrator", "mypackage.MyRegistrator")
val sc = new SparkContext(conf)
{% endhighlight %}

The [Kryo documentation](http://code.google.com/p/kryo/) describes more advanced
The [Kryo documentation](https://github.com/EsotericSoftware/kryo) describes more advanced
registration options, such as adding custom serialization code.

If your objects are large, you may also need to increase the `spark.kryoserializer.buffer.mb`
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