Hello, We are working with large lucene 4.3.0 index and using SortedSetDocValuesFacetFields for creating facets and SortedSetDocValuesAccumulator for facet accumulation. We couldn't use a taxonomy based facet implementation (We use MultiReader for searching and our indices is composed of multiple physical lucene indices, hence we cannot have a single taxonomy index). We have two million categories and expect to have another two million in the near future. As the current implementation of SortedSetDocValuesAccumulator does not support ReusingFacetArrays, we are concerned with potential garabage collector related performance issues in our high traffic application. Will future Lucene release support using ReusingFacetArrays in SortedSetDocValuesAccumulator ?
Also as an alternative we are considering subclassing FacetIndexingParams and provide dimension specific CategoryListParams during indexing time. This will help to reduce the size of the FacetArray per facet request. We realize this approach will not support multiple FacetRequest in a single SortedSetDocValuesAccumulator, as SortedSetDocValuesReaderState hardcodes the category to null while calling FacetIndexingParams.getCategoryListParams(null) in its constructor. Are there better approaches to this problem ? Thanks in advance for any help. Kannan Cengage Learning --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
