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Posted to issues@lucene.apache.org by GitBox <gi...@apache.org> on 2021/08/28 14:22:14 UTC

[GitHub] [lucene] mikemccand commented on pull request #271: LUCENE-9969:TaxoArrays, a member variable of the DirectoryTaxonomyReader class, i…

mikemccand commented on pull request #271:
URL: https://github.com/apache/lucene/pull/271#issuecomment-907633158


   Do you know how large your Taxonomy index is (how many unique `FacetLabel`s)?
   
   In your application, are all three arrays being allocated (`parents`, `siblings` and `children`)?  That triples the memory cost, but if you are not really needing full hierarchical facets, you should only need to allocate one of those arrays.  Or you could explore `SortedSetDocValues` faceting.


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