question for HDPCD:Java exam task, to be clear does "Perform a join of two or more datasets" means Reduce side join. As there is another task specifically says "Perform a map-side join of two datasets"" in Archives of Support Questions (Read Only)

for HDPCD:Java exam task, to be clear does "Perform a join of two or more datasets" means Reduce side join. As there is another task specifically says "Perform a map-side join of two datasets""

nilshan77 — Thu, 02 Jun 2016 18:08:55 GMT

rich1 — Thu, 02 Jun 2016 18:14:15 GMT

You should be able to implement both types of joins in Java: map-side and reduce-side.