[jira] [Commented] (LUCENE-9662) CheckIndex should be concurrent

["ASF subversion and git services (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-9662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17407763#comment-17407763 ] 

ASF subversion and git services commented on LUCENE-9662:
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Commit 424192e1704664dc0ebc55109feaad5990b945cb in lucene's branch refs/heads/main from zacharymorn
[ https://gitbox.apache.org/repos/asf?p=lucene.git;h=424192e ]

LUCENE-9662: CheckIndex should be concurrent  - parallelizing index check across segments (#128)



> CheckIndex should be concurrent
> -------------------------------
>
>                 Key: LUCENE-9662
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9662
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Michael McCandless
>            Priority: Major
>          Time Spent: 16h 40m
>  Remaining Estimate: 0h
>
> I am watching a nightly benchmark run slowly run its {{CheckIndex}} step, using a single core out of the 128 cores the box has.
> It seems like this is an embarrassingly parallel problem, if the index has multiple segments, and would finish much more quickly on concurrent hardware if we did "thread per segment".
> If wanted to get even further concurrency, each part of the Lucene index that is checked is also independent, so it could be "thread per segment per part".



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