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https://issues.apache.org/jira/browse/SOLR-14467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17126951#comment-17126951
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Michael Gibney commented on SOLR-14467:
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Great! Happy to help, and thanks to you as well!
> json.facet's relatedness() should not cause server errors or nonsense results
> when combined with allBuckets:true
> ----------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-14467
> URL: https://issues.apache.org/jira/browse/SOLR-14467
> Project: Solr
> Issue Type: Bug
> Components: Facet Module
> Reporter: Chris M. Hostetter
> Assignee: Chris M. Hostetter
> Priority: Major
> Fix For: master (9.0), 8.6
>
> Attachments: SOLR-14467.patch, SOLR-14467.patch, SOLR-14467.patch,
> SOLR-14467.patch, SOLR-14467_allBuckets_refine.patch, SOLR-14467_test.patch,
> SOLR-14467_test.patch, beast.log.txt, beast2.log.txt
>
>
> While testing randomized permutations of json.facet params in combination
> with the {{relatedness()}} function it was discovered that:
> * {{relatedness()}} would produce server errors in many situations when
> combined with {{allBuckets:true}}
> * In situations where this combination of options was used an a server error
> did not happen, the computed values for the {{relatedness()}} function that
> would be put in the {{allBuckets}} bucket were meaningless
> The end result of this jira was to modify {{relatedness()}} to skip
> computation for the {{allBuckets}} bucket
> {panel:title=original description}
> While working on randomized testing for SOLR-13132 i discovered a variety of
> different ways that JSON Faceting's "allBuckets" option can fail when
> combined with the "relatedness()" function.
> I haven't found a trivial way to manual reproduce this, but i have been able
> to trigger the failures with a trivial patch to {{TestCloudJSONFacetSKG}}
> which i will attach.
> Based on the nature of the failures it looks like it may have something to do
> with multiple segments of different sizes, and or resizing the SlotAccs ?
> The relatedness() function doesn't have much (any?) existing tests in place
> that leverage "allBuckets" so this is probably a bug that has always existed
> -- it's possible it may be excessively cumbersome to fix and we might
> nee/wnat to just document that incompatibility and add some code to try and
> detect if the user combines these options and if so fail with a 400 error?
> {panel}
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