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https://issues.apache.org/jira/browse/SOLR-2894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man updated SOLR-2894:
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Attachment: pivot_mincount_problem.sh
Something's wonky with the way mincount is handled - if you run the attached
"pivot_mincount_problem.sh" script while a 2 node cluster is running with th
example configs you can see the problem by comparing these 3 URLs...
* Pivot1:
http://localhost:8983/solr/select?rows=0&wt=json&indent=true&q=single_7_s:%284%205%206%29&facet=true&facet.pivot=multi_50_ss,single_100_s&facet.limit=10
* Filter:
http://localhost:8983/solr/select?rows=0&wt=json&indent=true&q=single_7_s:%284%205%206%29&fq=multi_50_ss:35&fq=single_100_s:79
* Pivot2:
http://localhost:8983/solr/select?rows=0&wt=json&indent=true&q=single_7_s:%284%205%206%29&facet=true&facet.pivot=multi_50_ss,single_100_s&facet.limit=10&facet.pivot.mincount=10
According to the "Pivot1" URL, there are 4244 total docs matching the query, of
those 586 match {{multi_50_ss:35}} and of those 13 match {{single_100_s:79}}
This all jives with what the "Filter" URL tells us (where we ignore the pivot
facets and just apply those as filters)
But if we add {{facet.pivot.mincount=10}} to the original pivot request to get
the "Pivot2" URL, no values for single_100_s make the cut as sub-facets of the
586 {{multi_50_ss:35}} docs.
Looking at the logs of the shard queries, it appears that
{{facet.pivot.mincount=-1}} is set _only_ on the refinement queries, but non in
the initial sub-shard queries (where the limit over requesting happens to find
the top terms). So terms that don't match above the mincount on at least one
_single_ shard won't be considered at all for the cumulative total.
> Implement distributed pivot faceting
> ------------------------------------
>
> Key: SOLR-2894
> URL: https://issues.apache.org/jira/browse/SOLR-2894
> Project: Solr
> Issue Type: Improvement
> Reporter: Erik Hatcher
> Fix For: 4.9, 5.0
>
> Attachments: SOLR-2894-reworked.patch, SOLR-2894.patch,
> SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch,
> SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch,
> SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch,
> SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch,
> SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch, SOLR-2894.patch,
> dateToObject.patch, pivot_mincount_problem.sh
>
>
> Following up on SOLR-792, pivot faceting currently only supports
> undistributed mode. Distributed pivot faceting needs to be implemented.
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