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https://issues.apache.org/jira/browse/SOLR-16943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17782663#comment-17782663
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ASF subversion and git services commented on SOLR-16943:
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Commit 3cc283e30cfe1116ac0f1a6479df72345201cffe in solr's branch
refs/heads/branch_9x from Alex Deparvu
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=3cc283e30cf ]
[9.x] SOLR-16943 Move Jetty HttpClient tracing into
InstrumentedHttpListenerFactory (#2041)
* Move Jetty HttpClient tracing down into InstrumentedHttpListenerFactory from
other places, thus covering more scenarios.
* Add Apache HttpClient tracing via InstrumentedHttpRequestExecutor.
* None of this affects SolrJ because these "Instrumented" things are only in
solr-core.
* Reinstate Solr ExecutorService instrumentation, i.e. propagation to other
threads in Solr. That was in 9x and briefly was torn out in main.
Co-authored-by: Alex Deparvu <stilla...@apache.org>
Co-authored-by: David Smiley <dsmi...@salesforce.com>
> Add client tracing spans to HTTP interaction; at least for Jetty HttpClient
> ---------------------------------------------------------------------------
>
> Key: SOLR-16943
> URL: https://issues.apache.org/jira/browse/SOLR-16943
> Project: Solr
> Issue Type: Improvement
> Components: tracing
> Reporter: David Smiley
> Priority: Major
> Time Spent: 6h 10m
> Remaining Estimate: 0h
>
> Adding a client side span is useful to see bottlenecks in client-server
> interaction, especially async delivery delays.
> Additionally: Instead of injecting tracing at HttpShardHandler &
> SolrCmdDistributor, go deeper at InstrumentedHttpListenerFactory, thereby
> covering more use-cases. A random example is
> org.apache.solr.update.processor.DistributedUpdateProcessor#fetchFullUpdateFromLeader
> which currently isn't traced.
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