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https://issues.apache.org/jira/browse/SOLR-9658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898314#comment-16898314
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Andrzej Bialecki commented on SOLR-9658:
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There's a trade-off between the cache size and hit ratio - we would like to use
as much memory as possible to get a good hit ratio, but this is costly so we
also want to use as little memory as possible while retaining a good hit ratio
;)
So there's a certain sweet-spot for dynamically adjusting cache size, where we
use just enough memory to get a good hit ratio. If hit ratio falls below a
threshold we can reduce the memory (because this means that many entries are
useless), if hit ratio is high then we can increase the memory because the
cache is full.
> Caches should have an optional way to clean if idle for 'x' mins
> ----------------------------------------------------------------
>
> Key: SOLR-9658
> URL: https://issues.apache.org/jira/browse/SOLR-9658
> Project: Solr
> Issue Type: New Feature
> Reporter: Noble Paul
> Assignee: Andrzej Bialecki
> Priority: Major
>
> If a cache is idle for long, it consumes precious memory. It should be
> configurable to clear the cache if it was not accessed for 'x' secs. The
> cache configuration can have an extra config {{maxIdleTime}} . if we wish it
> to the cleaned after 10 mins of inactivity set it to {{maxIdleTime=600}}.
> [~dragonsinth] would it be a solution for the memory leak you mentioned?
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