Found the following bits in a post on The Register by Timothy Prickett Morgan:
While Cloudera and MapR are charging $4,000 per node for their enterprise-class Hadoop distributions (including their proprietary extensions and tech support), Hortonworks doesn’t have any proprietary extensions and is living off of the support contracts for the HDP 1.0 stack. […] Hortonworks is not providing its full list price, but for a starter ten-node cluster, you can get a standard support contract for $12,000 per year.
Hortonworks’s pricing looks a bit aggressive, but this could be explained by the fact that Hortonworks Data Platform 1.0 was made available only this week.
For running Hadoop in the cloud, there’s also Amazon Elastic MapReduce whose pricing was always clear. And Amazon has recently announced support for MapR Hadoop distribution on Elastic MapReduce.
Original title and link: Pricing for Hadoop Support: Cloudera, Hortonworks, MapR ( ©myNoSQL)