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https://issues.apache.org/jira/browse/LUCENE-8808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16845802#comment-16845802
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Adrien Grand commented on LUCENE-8808:
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Can you explain the use-case a bit more? What does it buy compared to having an
executor with a fixed number of threads that is shared across all IndexSearcher
instances?
> Introduce Optional Cap on Number Of Threads Per Query
> -----------------------------------------------------
>
> Key: LUCENE-8808
> URL: https://issues.apache.org/jira/browse/LUCENE-8808
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Reporter: Atri Sharma
> Priority: Major
>
> With the presence of https://issues.apache.org/jira/browse/LUCENE-8757 , a
> natural progression is to allow advanced users to specify a cap on the number
> of threads a query can use. This is especially useful for long polled
> IndexSearcher instances, where the same instance is used to fire queries for
> multiple runs and there are multiple concurrent IndexSearcher instances on
> the same node.
>
> This will be an optional parameter and local only to the IndexSearcher
> instance being configured during construction.
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