[jira] [Created] (SOLR-16017) Allow first registered SolrIndexSearcher to inform its configured caches

["Michael Gibney (Jira)" <ji...@apache.org>]

Michael Gibney created SOLR-16017:
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             Summary: Allow first registered SolrIndexSearcher to inform its configured caches
                 Key: SOLR-16017
                 URL: https://issues.apache.org/jira/browse/SOLR-16017
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: search
    Affects Versions: main (10.0)
            Reporter: Michael Gibney


Each configured cache is currently informed of its associated SolrIndexSearcher when SolrCore calls the {{SolrIndexSearcher.warm(...)}}, which in turn calls {{SolrCache.warm(...)}}, passing the searcher as an argument.

It is inconsistent that caches are informed of subsequent searchers, but not of the first registered searcher. A note on [SolrCache.warm|https://github.com/apache/solr/blob/9903d00b0fb6216f836bb580f42d0081b7b41584/solr/core/src/java/org/apache/solr/search/SolrCache.java#L144-L150] suggests the possibility of providing the SolrIndexSearcher on cache.init(...). That seems reasonable to me, and would be one way to resolve the current inconsistency. But that would likely constitute a major change, perhaps involving a change in the SolrCache plugin API, and the responsibility of each cache to maintain its own reference to its associated searcher.

Another way to resolve the current inconsistency would be to introduce a method to (analogous to {{warm(...)}}) that the first registered SolrIndexSearcher could use to inform its caches.



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