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https://issues.apache.org/jira/browse/SOLR-15555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17417284#comment-17417284
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Mark Robert Miller commented on SOLR-15555:
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Have not had a chance to look at this and this is on the javabin perf branch,
so no validity claims, but fyi, just hit this:
https://gist.githubusercontent.com/markrmiller/d8bea9700cfe7582bc3dcc85f5859ec1/raw/b08c4aa75d97e70c027ecbb52ca64bdd22c62a89/cache%2520fail
> Use filterCache.computeIfAbsent in SolrIndexSearcher
> ----------------------------------------------------
>
> Key: SOLR-15555
> URL: https://issues.apache.org/jira/browse/SOLR-15555
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Mike Drob
> Assignee: Mike Drob
> Priority: Major
> Fix For: main (9.0), 8.10
>
> Attachments: OUTPUT-org.apache.solr.search.TestRangeQuery.txt.gz,
> SOLR-15555.test-fix.patch
>
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> When multiple concurrent queries come in at the same time, in several cases
> they can trigger concurrent computations of a DocSet for the cache. We should
> investigate where this happens and possibly take care to only do a single
> computation when possible.
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