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https://issues.apache.org/jira/browse/LUCENE-9286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17073869#comment-17073869
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Bruno Roustant commented on LUCENE-9286:
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[~dweiss] I'm able to reproduce the FSTEnum traversal time increase and I
started to investigate. But I don't reproduce the memory blowup. Did you share
the same FST as your memory issue? I'm able to recompile the FST with an
oversizing factor of 1.0 with less than 200M using -Xmx200m.
> FST construction explodes memory in BitTable
> --------------------------------------------
>
> Key: LUCENE-9286
> URL: https://issues.apache.org/jira/browse/LUCENE-9286
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 8.5
> Reporter: Dawid Weiss
> Assignee: Bruno Roustant
> Priority: Major
> Attachments: screen-[1].png
>
>
> 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, [~broustant], [~sokolov]?
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