ihadanny

ihadanny has asked 30 questions and find answers to 6 problems.

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ihadanny questions

Netezza does not do lazy evaluation of case statements?
How to sort (order by) big data with hive efficiently?
why should I make a *shallow* copy of a dataframe?
pig skewed join with a big table causes "Split metadata size exceeded 10000000"
System.exit return code isn't detected by bash eval
Refreshing training data for supervised learning - how to?
how to create a small constant relation(table) in pig?
Using Pig/Hive for data processing instead of direct java map reduce code?
How does hive/hadoop assures that each mapper works on data that is local for it?
How could I tell if my hadoop config parameter io.sort.factor is too small or too big?

ihadanny answers

Netezza does not do lazy evaluation of case statements?
Debugging in PIG UDF
Why do we do batch matrix-matrix product?
How to get scalar value on a cell using conditional indexing
merging changes from a maven release branch yields conflicts due to changed versions in poms