Instead of seeing this asa Hadoop alternative - this might be a better alternative to the clunky data warehousing options like Vertica, Netezza, Greenplum, etc.

Instead of seeing this asa Hadoop alternative - this might be a better alternative to the clunky data warehousing options like Vertica, Netezza, Greenplum, etc. The Citus vs Hadoop comparison feels a little apples vs oranges as presented. I worked a bit with Netezza appliances which use an older version of postgres which can spread queries across a Bladecenter ... I wonder how this compares. The downside of the Netezza (beside the huge cost) is that it is not expandable at all - to get more Netezza you need to buy another multirack system. Also there is a bottleneck getting data in and out as there are individual host servers that you launch jobs through (ibm x3650s if I remember correctly). Hadoop does a significantly better job than something like Netezza in those 2 areas. I guess the head to head comparison would be Citus vs Impala/ Hbase? That is probably where a 'massively parallel' postgres setup that can scale horizontally would out perform its hadoop counterpart.