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Posted to issues@lucene.apache.org by "David Smiley (Jira)" <ji...@apache.org> on 2020/05/29 21:32:00 UTC

[jira] [Commented] (LUCENE-9388) Move live docs to disk?

    [ https://issues.apache.org/jira/browse/LUCENE-9388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17119956#comment-17119956 ] 

David Smiley commented on LUCENE-9388:
--------------------------------------

This idea surprises me.  Doesn't this need to be an efficient BitSet?  Is accessing memory-mapped data approximately zero relative to on-heap?

> Move live docs to disk?
> -----------------------
>
>                 Key: LUCENE-9388
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9388
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Priority: Minor
>
> Live docs are the last file format whose memory usage is a function of maxDoc, let's look into moving them to disk?



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