Tried to create an extract of the live data which is in Impala - Hadoop.
Taking several hours and had to Abandon the extract.
Is there anyway to create the extract faster.
User wants all the rows, the data gets updated once a month.
Most of the time dealing with Hadoop performance is gated by Hadoop's performance.
Can you try hiding all columns but one (any integer field) and create an extract again?
If you'd provide logs I could tell whether time is spend processing the query, fetching results or materializing results in the extract.
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