DataStax Enterprise integrates Solr with Cassandra. The Solr docs are stored in Cassandra. Solr and Cassandra occupy the same JVM. As a result all docs inserte

DataStax Enterprise integrates Solr with Cassandra. The Solr docs are stored in Cassandra. Solr and Cassandra occupy the same JVM. As a result all docs inserted into C* are indexed using Solr, and Solr get's the high availability/linear scalability of Cassandra. I successfully deployed it as a customer, and I know of several clusters in the many hundreds of nodes.