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RF3 -> RF4 to improve impala read performance


RF3 -> RF4 to improve impala read performance


Hello --


Our cluster is used primarily for ad-hoc read-only queries using impala, with many daily users. 

We currently have 12 DNs, 8 cores per DN, 8 disks per DN. 


Can anyone speak to moving to RF 4 to improve impala read performance? Is this a crazy idea?