[MLlib] kmeans random initialization, same seed every time

[Julian Keppel]

Hi everybody,

I make some experiments with the Spark kmeans implementation of the new
DataFrame-API. I compare clustering results of different runs with
different parameters. I recognized that for random initialization mode, the
seed value is the same every time. How is it calculated? In my
understanding the seed should be random if it is not provided by the user.

Thank you for you help.

Julian