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From Koert Kuipers <>
Subject in joins, does one side stream?
Date Thu, 17 Sep 2015 18:21:38 GMT
in scalding we join with the smaller side on the left, since the smaller
side will get buffered while the bigger side streams through the join.

looking at CoGroupedRDD i do not get the impression such a distiction is
made. it seems both sided are put into a map that can spill to disk. is
this correct?


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