[jira] [Commented] (SOLR-15797) Improve SolrJ Tracer support

["Alex Deparvu (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-15797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17763095#comment-17763095 ] 

Alex Deparvu commented on SOLR-15797:
-------------------------------------

> You can add headers in the HTTP request via SolrRequest.addHeader.

yes. this works but not in all cases. the UpdateRequest does not allow propagation see SOLR-16950

reading through this ticket I am trying to understand what can be done here after Solr transitioned to OTEL. is it about improving docs? adding some examples?

> Improve SolrJ Tracer support
> ----------------------------
>
>                 Key: SOLR-15797
>                 URL: https://issues.apache.org/jira/browse/SOLR-15797
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Chris M. Hostetter
>            Priority: Major
>
> Currently, to use OpenTracing support with SolrJ, client applications must either:
> * Use the opentracing [SpecialAgent|https://github.com/opentracing-contrib/java-specialagent] to automaticlaly inject tracing information in all outgoing http connections
> * write & inject their own Carrier leveraging {{[SolrRequest.addHeader()|https://solr.apache.org/docs/8_10_0/solr-solrj/org/apache/solr/client/solrj/SolrRequest.html#addHeader-java.lang.String-java.lang.String-]}}
> It would be nice if there was a more "native" approach to doing this and/or better documentation on how SolrJ clients can/should integrate OpenTracing in their client application to most-easily  propogate tracing information to Solr



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