Hi,
When reading through ALS code, I find that:
class ALS private (
private var numUserBlocks: Int,
private var numProductBlocks: Int,
private var rank: Int,
private var iterations: Int,
private var lambda: Double,
private var implicitPrefs: Boolean,
private var alpha: Double,
private var seed: Long = System.nanoTime()
) extends *Serializable *with Logging
and why should ALS extend Serializable ?
if not, there will be an Exception: task is not serializable, ALS is not
serializable.
I did not find any closure functions in which ALS is referenced.
Any idea ? Thx.
Hao
--
View this message in context:
http://apache-spark-user-list.1001560.n3.nabble.com/Why-is-ALS-class-serializable-tp19262.html
Sent from the Apache Spark User List mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscr...@spark.apache.org
For additional commands, e-mail: user-h...@spark.apache.org
