[SOLR-15367] Convert "rid" functionality into a default Tracer

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.4
• Component/s: tracing
• Assignee: David Smiley
• Reporter: David Smiley
• Created: 23/Apr/21 03:27
• Updated: 15/Oct/23 19:57
• Resolved: 19/Sep/23 15:04

Description

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.

Issue Links

• is related to: SOLR-16988 Remove rid support in 10.0
• relates to: SOLR-15797 Improve SolrJ Tracer support
• links to: GitHub Pull Request #1854
• links to: GitHub Pull Request #1865
• links to: GitHub Pull Request #1868
• links to: GitHub Pull Request #1898