David Smiley created SOLR-15367:
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             Summary: Convert "rid" functionality into a default Tracer
                 Key: SOLR-15367
                 URL: https://issues.apache.org/jira/browse/SOLR-15367
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: David Smiley


Solr's "rid" (request ID) functionality added in SOLR-14566 could be converted 
into a distributed-tracing OpenTracing Tracer (Solr TracerConfigurator) plugin, 
more or less.  Such an implementation, enabled by default, would merely 
generate IDs and pass them along in a custom HTTP header.  Solr's existing 
tracing support would then ensure that this ID is in MDC in the "t:" log 
prefix, and thus would fit in nicely.  "rid" is kind of a cheap bolt-on by 
comparison, duplicative with tracing but far fewer features.  Solr's tracing 
support is growing, supporting more Solr-to-Solr interaction than "rid" which 
is only in a search request.



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