[SOLR-16615] Colocated cores with the same configset should share resources

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Labels: API performance
• Assignee: Unassigned
• Reporter: Jason Gerlowski
• Created: 09/Jan/23 17:47
• Updated: 04/Feb/23 18:33

Description

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.

Issue Links

• is related to: SOLR-16531 Performance degradation due to introduction of JAX-RS
• links to: GitHub Pull Request #1286
• links to: GitHub Pull Request #1314