[jira] [Created] (SOLR-16615) Colocated cores with the same configset should share resources

["Jason Gerlowski (Jira)" <ji...@apache.org>]

Jason Gerlowski created SOLR-16615:
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             Summary: Colocated cores with the same configset should share resources
                 Key: SOLR-16615
                 URL: https://issues.apache.org/jira/browse/SOLR-16615
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Jason Gerlowski


Currently, each core parses solrconfig.xml and instantiates its own copy of various plugins (v2 'Api' instances, RequestHandlers, etc.) or plugin-related objects (e.g. Jersey "ApplicationHandlers").

Usually this is fine, but when many cores on a Solr node share the same configset, this duplication can become wasteful and have considerable impacts on node startup and core reload time.

We should investigate whether some of these solrconfig.xml-driven entities can be shared by cores with the same configset that live in the same JVM. 



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