Lily, the only CMS built on top of HBase and using Solr as its search engine, has reached the 1.0 version.
Lily is dead serious about Scale. The Lily repository has been tested to scale beyond any common content repository technology out there, due to its inherently distributed architecture, providing economically affordable, robust, and high-performing data management services for any kind of enterprise application.
Outerthought has talked in the past about their technical choices:
Original title and link: The HBase+Solr CMS Lily Reaches 1.0 (NoSQL databases © myNoSQL)