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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-7324) ExitableDirectoryReader should not check on every term
Date Thu, 09 Jun 2016 11:35:20 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-7324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15322376#comment-15322376
] 

Michael McCandless commented on LUCENE-7324:
--------------------------------------------

+1

> ExitableDirectoryReader should not check on every term
> ------------------------------------------------------
>
>                 Key: LUCENE-7324
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7324
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Simon Willnauer
>
> I looked at ExitableDirectoryReader and to me checking the timeout on every term is a
pretty heavy operation. I wonder if we can relax that a bit and begin with checking when we
pull Terms and maybe only every Nth term by default? I wonder if we even can make it a function
of the number of therms ie log(numTerms) I think it's pretty trappy to have something that
won't perform well or has the risk to not scale well in lucene core?



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