https://community.cloudera.com/t5/Support-Questions/Adding-nodes-will-improve-performance/m-p/51348#M5484 If you are talking about Worker nodes (datanode, nodemanager, impala daemon, etc.) and the resource allocation and configuration is identical, then in theory yes it should be a 2x improvement.<BR /><BR />Note: you will need to rebalance the data across the new nodes to see consistent improvement and not burnt out the old nodes. Wed, 22 Feb 2017 22:43:17 GMT mbigelow 2017-02-22T22:43:17Z