David Smiley created SOLR-14394:
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             Summary: Many request handlers should be startup=lazy
                 Key: SOLR-14394
                 URL: https://issues.apache.org/jira/browse/SOLR-14394
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: David Smiley


Solr cores track a lot of granular metric information per request handler.  
This is noise for a request handler that we aren't even using!  The vast 
majority of request handlers are not used in a typical app.  That doesn't mean 
they shouldn't be available for use, I'm only saying that they aren't until 
perhaps for diagnostic purposes or something.  *I think it would be better to 
not track metrics on something until we actually use it.*  For a request 
handler, this is done by setting startup=lazy.  Most implicitly registered 
plugins should have this set in ImplicitPlugins.json.  
CC [~ab] [~noble.paul]



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