Uploaded image for project: 'Lucene - Core'
  1. Lucene - Core
  2. LUCENE-9286

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

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 8.5
    • Fix Version/s: 8.6
    • Component/s: None
    • Labels:
      None
    • Lucene Fields:
      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?

        Attachments

        1. screen-[1].png
          801 kB
          Dawid Weiss

          Issue Links

            Activity

              People

              • Assignee:
                broustant Bruno Roustant
                Reporter:
                dweiss Dawid Weiss
              • Votes:
                0 Vote for this issue
                Watchers:
                9 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:

                  Time Tracking

                  Estimated:
                  Original Estimate - Not Specified
                  Not Specified
                  Remaining:
                  Remaining Estimate - 0h
                  0h
                  Logged:
                  Time Spent - 1h 50m
                  1h 50m