Scaling Apache Solr -- Features Of Resilience
summary
Solr 8.7 introduces circuit breakers that use JVM % and load‑average thresholds per collection to return 503 when a node refuses new requests (time‑averaged metrics, still vulnerable to one behemoth query). Solr 9 adds rate limiters with guaranteed slots, hard caps, slot borrowing and 429 responses, configurable on the fly. Solr 9 also adds task management: trackable query UUIDs, list/cancel/status endpoints, aging and bulk cancels, and a planned policy to let circuit breakers kill running tasks to free capacity.
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chapters (7)
- 0:00Introduction
- 1:02About the speaker
- 3:05What is sustenance in Solr
- 8:24Circuit breakers in Solr
- 13:49Rate limiters in Solr
- 22:16Task management in Solr
- 33:06Future features and Q&A
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