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https://issues.apache.org/jira/browse/SOLR-14939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17250491#comment-17250491
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ASF subversion and git services commented on SOLR-14939:
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Commit 0b5003cfed5187286ac49fa56d5aafe15165101d in lucene-solr's branch
refs/heads/master from Christine Poerschke
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=0b5003c ]
SOLR-14939: JSON range faceting to support cache=false parameter (#1992)
> JSON facets: range faceting to support cache=false parameter
> ------------------------------------------------------------
>
> Key: SOLR-14939
> URL: https://issues.apache.org/jira/browse/SOLR-14939
> Project: Solr
> Issue Type: Bug
> Reporter: Christine Poerschke
> Assignee: Christine Poerschke
> Priority: Minor
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> The {{cache}} parameter, if set to {{false}}, is intended to support
> non-caching of the search results:
> [https://lucene.apache.org/solr/guide/8_6/common-query-parameters.html#cache-parameter]
> Based on inspection of
> {code:java}
> curl
> "http://localhost:8983/solr/admin/metrics?prefix=CACHE.searcher.filterCache";
> {code}
> metrics before and after a search we can see that range JSON facet queries
> currently do not support a {{cache=false}} parameter.
> Using the {{techproducts}} example collection as an illustration, if a 1
> MONTH {{gap}} value is used then 12 {{filterCache}} entries are added for a
> one year {{start/end}} time range.
> {code:java}
> curl "http://localhost:8983/solr/techproducts/query?q=*:*&rows=0&cache=false";
> -d 'json.facet={
> manufacturedate_dt_ranges : {
> type : range,
> field : manufacturedate_dt,
> mincount : 1,
> gap : "%2B1MONTH",
> start : "2005-01-01T00:00:00.000Z",
> end : "2005-12-31T23:59:59.999Z",
> }
> }'
> {code}
> Similarly, if a 1 DAY {{gap}} value is used then 365 {{filterCache}} entries
> are added for a one year {{start/end}} time range and if a 1 HOUR {{gap}}
> value were to be used that would equate to 365 x 24 = 8,760 entries. This
> means that a single search potentially displaces many or all existing
> {{filterCache}} entries.
> This ticket proposes to support the {{cache}} parameter for JSON range facet
> queries:
> * the current and default behaviour would remain {{cache=true}} and
> * via {{cache=false}} users would be able run an 'uncommon' search with many
> range buckets without impact on the 'common' searches with fewer range
> buckets.
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