19 Jul 2014

Off-Heap FieldCache Faceting and Sorting
by | posted in: facets, heliosearch, off-heap data, performance, solr | 0

Lucene/Solr background Lucene has a segmented architecture – when a small amount of documents are added to an existing index, this will often just add an additional small segment to the index. Caching data structures at the segment level (e.g. … Continued

, FieldCache instanity, global ords, off-heap faceting, , off-heap searching, off-heap sorting, solr faceting performance, solr sorting performance, sorting performance
10 Mar 2014

Heliosearch/Solr Off-Heap FieldCache Performance
by | posted in: facets, filters, heliosearch, off-heap data, performance, solr | 0

Heliosearch’s off-heap FieldCache was previously introduced and benchmarked for integer fields. Support for all numeric field types as well as string fields has now been completed, and this post will focus on the performance of string fields. A review of … Continued

3 Feb 2014

nCache: Heliosearch/Solr Off-Heap FieldCache
by | posted in: heliosearch, off-heap data, performance, search, solr | 0

nCache Heliosearch has a new replacement for the Lucene FieldCache currently used by Solr for sorting, faceting, and function queries.   Introducing nCache (n is for “native”): nCache has Off-Heap Data-structures, just like the Off-Heap Filters to lower garbage collection … Continued