[jira] [Created] (SOLR-9886) Add ability to turn off/on caches

["Pushkar Raste (JIRA)" <ji...@apache.org>]

Pushkar Raste created SOLR-9886:
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             Summary: Add ability to turn off/on caches 
                 Key: SOLR-9886
                 URL: https://issues.apache.org/jira/browse/SOLR-9886
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Pushkar Raste
            Priority: Minor


There is no elegant way to turn off caches (filterCache, queryResultCache etc) from the solrconfig. When I tried setting size and initialSize to zero, it resulted in caches of size 2. Here is the code that overrides setting zero sized cache. 

https://github.com/apache/lucene-solr/blob/master/solr/core/src/java/org/apache/solr/search/FastLRUCache.java#L61-L73

Only way to disable cache right now is by removing cache configs from the solrConfig, but we can simply provide an attribute to disable cache, so that we can override it using a system property. 



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