apache spark - What is right way of Broadcasting a big Dataframe -

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i have need broadcast 1 big file (converted dataframe) in spark 1.6.1 lookup. whether below code right way -

val file = sc.broadcast(dataframe_df)

then accessing using below code in udf.

def abc{ file.value.sqlcontext.sql(query) .... }

i read sc.broadcast brings data driver first , sends executors not approach this. right? help.


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