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Posted to user@spark.apache.org by aecc <al...@gmail.com> on 2014/12/17 08:56:57 UTC

Locality Level Kryo

Hi guys,

I get Kryo exceptions of the type "unregistered class id" and "cannot cast
to class" when the locality level of the tasks go beyond LOCAL. 
However I get no Kryo exceptions during shuffling operations.

If the locality level never goes beyond LOCAL everything works fine.

Is there a special reason for this? How does kryo handles the tasks that are
not in the same locality?

Cheers



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