Although nobody answers, as I tested, Row, MutableValue and there subclasses are not registered by default,
which I think should be, since they would absolutely show up in Spark SQL. 2014-10-26 23:43 GMT+08:00 Fengyun RAO <[email protected]>: > In Tuning Spark <https://spark.apache.org/docs/latest/tuning.html>, it > says, > Spark automatically includes Kryo serializers for the *many commonly-used > core Scala classes* covered in the AllScalaRegistrar from the Twitter > chill <https://github.com/twitter/chill> library. > > I looked into the AllScalaRegistrar Javadoc, it only says, > > /** Registers all the scala (and java) serializers we have */ > > It seems to register only all scala and java primitive and collection > classes, is that right? > > What about classes in Spark, do we need to register them ourselves, > especially Row, GenericRow, MutableRow in Spark SQL? > >
