Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/1894#issuecomment-52525986
Sorry to drop the ball on reviewing this.
On StackOverflow, someone has reported an issue where zip() silently
returns less output than it should:
http://stackoverflow.com/questions/25364380/why-does-zip-truncate-the-data-in-pyspark
Any thoughts on what's happening there? My hunch is that the PythonRDDs
have the same number of partitions, same number of batches, and same batch
sizes, but a different grouping of objects across batched elements. As long as
you're working on zip() issues, could you take a look at this and maybe port
their test case?
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