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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""

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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""

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Re: 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""

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

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Re: 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""

Guru

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

View solution in original post