Performance:
- Solr indexes about 25% faster for small documents (one sentence)
- Solr indexes about 200% faster for big documents (64kb)
- Indexing the eZ Components website's article takes 47s with the Solr backend, and 3m20s with the Zend Lucene backened.
Missing features in Zend Lucene:
- No real datatypes support.
- No multi-valued fields.
- No proper tokenizers.