[SOLR-15790] Populate MDC with rid (CommonParams.REQUEST_ID)

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.0
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 10/Nov/21 23:30
• Updated: 14/Feb/23 19:30
• Resolved: 12/Nov/21 18:24

Description

The 'rid' request param for coordinating requests (and distributed requests) based on a user assigned ID is useful, but is only logged as part of the Request logging – It would be more useful if it was tracked in the MDC for request threads so that it could be consulted anytime WARN or ERROR messages are logged.

(The "workaround" w/o this info in the MDC is to correlate the thread_id from a WARN/ERROR message with the "next" INFO message from the Request Logger by the same thread – but that requires having INFO level logging turned on for the Request Logger ... something that isn't always desirable in high volume situations)

Issue Links

• causes: SOLR-16656 rid parameter missing from query logs
• is blocked by: SOLR-15783 MDC Values can leak between request threads, trace_id currently does