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  1. Lucene - Core
  2. LUCENE-9286

FST arc.copyOf clones BitTables and this can lead to excessive memory use

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 8.5
    • 8.6
    • None
    • None
    • New

    Description

      I see a dramatic increase in the amount of memory required for construction of (arguably large) automata. It currently OOMs with 8GB of memory consumed for bit tables. I am pretty sure this didn't require so much memory before (the automaton is ~50MB after construction).

      Something bad happened in between. Thoughts, Bruno Roustant, Michael Sokolov?

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            broustant Bruno Roustant
            dweiss Dawid Weiss
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