Github user lianhuiwang commented on the pull request:
https://github.com/apache/spark/pull/4070#issuecomment-70489709
@rxin yes, some of etl jobs that has groupby and join operators have been
tried to use this feature.most of time that can determine number of partition
very well. why jenkins report "java.lang.RuntimeException: spark-core: Binary
compatibility check failed!"? can you tell me the reasons of failed? thanks.
@ksakellis I take a look at your works in SPARK-4630 and Can you give some
suggestions about this PR? thanks.
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