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https://issues.apache.org/jira/browse/LUCENE-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771554#action_12771554
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Yonik Seeley commented on LUCENE-2018:
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Fuzzy query uses it to limit terms. Any others?
> Reconsider boolean max clause exception
> ---------------------------------------
>
> Key: LUCENE-2018
> URL: https://issues.apache.org/jira/browse/LUCENE-2018
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Mark Miller
>
> Now that we have smarter multi-term queries, I think its time to reconsider
> the boolean max clause setting. It made more sense before, because you could
> hit it more unaware when the multi-term queries got huge - now its more
> likely that if it happens its because a user built the boolean themselves.
> And no duh thousands more boolean clauses means slower perf and more
> resources needed. We don't throw an exception when you try to use a ton of
> resources in a thousand other ways.
> The current setting also suffers from the static hell argument - especially
> when you consider something like Solr's multicore feature - you can have
> different settings for this in different cores, and the last one is going to
> win. Its ugly. Yes, that could be addressed better in Solr as well - but I
> still think it should be less ugly in Lucene as well.
> I'd like to consider either doing away with it, or raising it by quite a bit
> at the least. Or an alternative better solution. Right now, it aint so great.
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