Hello,
we are experiencing an occasional performance issue with our Solr cluster. Normally, the average search time is around 50 ms, but from time to time we see a query taking up to 120 seconds to complete. This behavior is rare but concerning, especially because it sometimes happens during periods of very low traffic. Technical environment: * Apache Solr 8.11.1 deployed in a 3-node cluster * Red Hat, Inc. OpenJDK 64-Bit Server VM 11.0.25 (build 11.0.25+9-LTS) We would like to understand: * What could cause such a sudden slowdown in otherwise fast searches? * Which Solr metrics, logs, or debugging tools should we check to pinpoint the root cause? * Are there recommended practices for capturing detailed query execution traces when these rare slowdowns occur? Any guidance or suggestions on how to monitor and diagnose this type of sporadic latency would be greatly appreciated. Thank you, Antonio
