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https://issues.apache.org/jira/browse/SOLR-4586?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13611735#comment-13611735
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Robert Muir commented on SOLR-4586:
-----------------------------------
My recommendation at solr.xml was to fix the bugs and not have complicated
logic.
I look at the issue differently: to me the important thing is that its bogus
and confusing today to have this configuration parameter in solrconfig.xml,
when it really should be in solr.xml, since it cannot be applied per-core. This
is just a straight up bug! And I dont think the limit should be adjusted until
this bug is fixed: otherwise it will just create more bugs (or at least
confusing logic, like the last one or highest one or whatever is picked).
So it should be in solr.xml, and no one gets confused, and there is no need for
confusing logic (picking the last one, or the highest one, or whatever). If
someone has it specified in solrconfig.xml, some action should be taken: a nice
person might argue for just a warning or similar in 4.x and just a straight up
error (refuse to start) in 5.x.
> Increase default maxBooleanClauses
> ----------------------------------
>
> Key: SOLR-4586
> URL: https://issues.apache.org/jira/browse/SOLR-4586
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 4.2
> Environment: 4.3-SNAPSHOT 1456767M - ncindex - 2013-03-15 13:11:50
> Reporter: Shawn Heisey
> Attachments: SOLR-4586.patch, SOLR-4586.patch, SOLR-4586.patch,
> SOLR-4586.patch
>
>
> In the #solr IRC channel, I mentioned the maxBooleanClauses limitation to
> someone asking a question about queries. Mark Miller told me that
> maxBooleanClauses no longer applies, that the limitation was removed from
> Lucene sometime in the 3.x series. The config still shows up in the example
> even in the just-released 4.2.
> Checking through the source code, I found that the config option is parsed
> and the value stored in objects, but does not actually seem to be used by
> anything. I removed every trace of it that I could find, and all tests still
> pass.
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