A new Heliosearch pre-release has been cut for people to try out: https://github.com/Heliosearch/heliosearch/releases
Release Notes: ----------------------------------------------------------------------------------------- This is Heliosearch v0.03 Heliosearch is forked from Apache Solr and includes the following additional features: - Off-Heap Filters to reduce garbage collection pauses and overhead. http://www.heliosearch.org/off-heap-filters - Removed the 1024 limit on the number of clauses in a boolean query. For example: q=id:(doc1 doc2 doc3 doc4 doc5 ... doc2000) will now work correctly without throwing an exception. - Deep Paging with cursorMark. This is not yet in a current release of Apache Solr, but should be in Solr 4.7 http://heliosearch.org/solr/paging-and-deep-paging/ - nCache - the new Off-Heap FieldCache to reduce garbage collection overhead and accelerate sorting, faceting, and function queries. http://heliosearch.org/solr-off-heap-fieldcache -Yonik http://heliosearch.com -- making solr shine