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  1. Lucene - Core
  2. LUCENE-4769

Add a CountingFacetsAggregator which reads ordinals from a cache

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 4.2, 6.0
    • modules/facet
    • None
    • New, Patch Available

    Description

      Mike wrote a prototype of a FacetsCollector which reads ordinals from a CachedInts structure on LUCENE-4609. I ported it to the new facets API, as a FacetsAggregator. I think we should offer users the means to use such a cache, even if it consumes more RAM. Mike tests show that this cache consumed x2 more RAM than if the DocValues were loaded into memory in their raw form. Also, a PackedInts version of such cache took almost the same amount of RAM as straight int[], but the gains were minor.

      I will post the patch shortly.

      Attachments

        1. LUCENE-4769.patch
          7 kB
          Shai Erera
        2. LUCENE-4769.patch
          13 kB
          Shai Erera
        3. LUCENE-4769.patch
          17 kB
          Shai Erera

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            shaie Shai Erera
            shaie Shai Erera
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            Dates

              Created:
              Updated:
              Resolved: