I try to use a lucene index on a remote server as an input for carrot2-dcs installed on the same server. Regarding the documentation this should be possible (documentation chapter 3.4 Carrot2 Document Clustering Server: Various document sources included. Carrot2 Document Clustering Server can fetch and cluster documents from a large number of sources, including major search engines and indexing engines (Lucene, Solr)).
After installing carrot2-dcs 3.9.3 I discovered that lucene isn´t available as a document source. How to proceed?