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https://issues.apache.org/jira/browse/SOLR-571?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tomás Fernández Löbbe updated SOLR-571:
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Attachment: SOLR-571.patch
On the attached patch, I modified classes LRUCache and FastLRUCache adding the
capability of using a percentage value in the "autowarmCount" parameter. The
percentage value gets evaluated with the current size of the "old" cache when
warming the new cache.
I also added some tests of the new functionality.
> 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
> Attachments: SOLR-571.patch
>
>
> 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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