Cloudera Distribution for HadoopCloudera Distribution for Hadoop is the world's most complete, tested, and popular distribution of Apache Hadoop and related projects. CDH is 100% Apache-licensed open source and is the only Hadoop solution to offer unified batch processing, interactive SQL, and interactive search, and role-based access controls. More enterprises have downloaded CDH than all other such distributions combined.
When comparing with Oracle Sybase and SQL, it's cheaper. It's not expensive.
The price could be better for the product.