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From "Adrien Grand (Jira)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-9036) ExitableDirectoryReader to interrupt DocValues as well
Date Sun, 03 Nov 2019 09:09:00 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-9036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16965628#comment-16965628
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Adrien Grand commented on LUCENE-9036:
--------------------------------------

+1 ExitableDirectoryReader should try to handle all data-structures consistently. I think
it hasn't been suggested before because doc values are often consumed via a collector and
we already have a TimeLimitingCollector, but like you mentioned Solr's analytics component
or the Lucene facet module consume doc values without a collector so adding support for timeout
on doc values could be useful. Checking every N-th doc would make sense to me as you would
otherwise never be able to interrupt execution of queries if the index has been force-merged
down to 1 segment.

> ExitableDirectoryReader to interrupt DocValues as well
> ------------------------------------------------------
>
>                 Key: LUCENE-9036
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9036
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Mikhail Khludnev
>            Priority: Major
>
> This allow to make AnalyticsComponent and json.facet sensitive to time allowed. 
> Does it make sense? Is it enough to check on DV creation ie per field/segment or it's
worth to check every Nth doc? 



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