Github user mengxr commented on the pull request:
https://github.com/apache/spark/pull/3351#issuecomment-63606495
This issue was discussed in #2313 and #3193 . I support this change because
it simplifies the implementation and eliminates the concerns in #2313 and the
bug fixed in #2889 . Though I haven't tested python's random, I'm not worried
about its quality. Both python and numpy implement MT19937. The only downside I
can see is the performance regression during sampling, but it is usually not
the bottleneck of a job.
@mattf @freeman-lab @JoshRosen
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