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https://issues.apache.org/jira/browse/SOLR-5648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shikhar Bhushan closed SOLR-5648.
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Resolution: Invalid
bq. 1) I'm not sure i really understand what this adds – isn't every registered
searcher (which should include every open searcher if there are more then one)
already listed in the infoRegistry (so it's stats are surfaced in /admin/mbeans
and via JMX) ?
you're right! that's much better.
> SolrCore#getStatistics() should nest open searchers' stats
> ----------------------------------------------------------
>
> Key: SOLR-5648
> URL: https://issues.apache.org/jira/browse/SOLR-5648
> Project: Solr
> Issue Type: Task
> Reporter: Shikhar Bhushan
> Priority: Minor
> Fix For: 4.9, 5.0
>
> Attachments: SOLR-5648.patch, oldestSearcherStaleness.gif,
> openSearchers.gif
>
>
> {{SolrIndexSearcher}} leaks are a notable cause of garbage collection issues
> in codebases with custom components.
> So it is useful to be able to access monitoring information about what
> searchers are currently open, and in turn access their stats e.g.
> {{openedAt}}.
> This can be nested via {{SolrCore#getStatistics()}} which has a
> {{_searchers}} collection of all open searchers.
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