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https://issues.apache.org/jira/browse/SOLR-13558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16885559#comment-16885559
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Andrzej Bialecki edited comment on SOLR-13558 at 7/15/19 7:55 PM:
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This patch implements the dynamic modification of limits of all Solr cache
implementations, using an API similar to the one proposed in the parent issue.
Some notes:
* FastLRUCache has been modified to support both size and maxRamMB limits
simultaneously.
* LRUCache eviction has been modified to allow evicting multiple entries when
the size limit is changed.
* LFUCache doesn't support {{maxRamMB}} limit, unlike all other cache
implementations. This can be added relatively easily, but probably in a
separate issue.
* more unit tests are needed to verify the behavior of caches when other
parameters are changed (acceptableSize, minLimit, cleanupThread, etc)
was (Author: ab):
This patch implements dynamic modification of limits of all Solr cache
implementations, using an API similar to the one proposed in the parent issue.
> Allow dynamic resizing of SolrCache-s
> -------------------------------------
>
> Key: SOLR-13558
> URL: https://issues.apache.org/jira/browse/SOLR-13558
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Andrzej Bialecki
> Assignee: Andrzej Bialecki
> Priority: Major
> Attachments: SOLR-13558.patch
>
>
> Currently SolrCache limits are configured statically and can't be
> reconfigured without cache re-initialization (core reload), which is costly.
> In some situations it would help to be able to dynamically re-size the cache
> based on the resource contention (such as the total heap size used for
> caching across all cores in a node).
> Each cache implementation already knows how to evict its entries when it runs
> into configured limits - what is missing is to expose this mechanism using a
> uniform API.
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