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https://issues.apache.org/jira/browse/SOLR-10742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17150394#comment-17150394
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David Smiley commented on SOLR-10742:
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> I'm going to remove getNamesForCores and all associated code in the next
> couple of days.
Glad to here we can just remove it :-). Less code to maintain (and this issue,
slowness / optimization is maintenance).
> SolrCores.getNamesForCore is quite inefficient and blocks other core
> operations
> -------------------------------------------------------------------------------
>
> Key: SOLR-10742
> URL: https://issues.apache.org/jira/browse/SOLR-10742
> Project: Solr
> Issue Type: Improvement
> Reporter: Erick Erickson
> Assignee: Erick Erickson
> Priority: Major
>
> SolrCores.getNamesForCore iterates through all the cores to find all the
> aliases to this core. It does this in a synchronized block which blocks other
> core operations.
> For installations with many cores this can be a performance issue. I'm not
> sure it makes sense to do it this way anyway, perhaps SolrCore should have a
> list of its current aliases and we can be more efficient about this? Or
> otherwise get this information in a less heavy-weight fashion?
> I'm assigning this to myself to keep track of it, but anyone who wants to
> grab it please feel free.
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