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https://issues.apache.org/jira/browse/SOLR-571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12595851#action_12595851
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Yonik Seeley commented on SOLR-571:
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Yep, great idea, and should be fairly simple to implement.
> LRUCache autowarmCount should support percentages
> -------------------------------------------------
>
> Key: SOLR-571
> URL: https://issues.apache.org/jira/browse/SOLR-571
> Project: Solr
> Issue Type: Improvement
> Reporter: Hoss Man
>
> a recent thread reminded me of an old idea that never got implemented...
> the autowarmCount for LRUCaches should support "percentages" which get
> evaluated relative the current size of the cache when warming happens.
> in this way, a Solr instance might be configured with autowarmCount="50%" to
> autowarm the top half of the queries ... a master machine might be configured
> this way to give some autowarming if it is inadvertently being queried, but
> things won't be maintained in the caches in perpetuity ... each subsequent
> cache instance would have fewer and fewer of the "old" queries warmed
> automatically.
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