Vespa Product Updates, March 2019: Tensor updates, Query tracing and coverage

Vespa, an open-source big data processing and serving engine developed largely by Yahoo engineers, has released updates for March 2019, including enhancements in tensor updates, query tracing, and search coverage. These updates allow for easy individual tensor cell modifications without rewriting the entire tensor, improving throughput and enabling continuous updates. Advanced query tracing now provides detailed matching and ranking execution information, aiding in performance optimization. Additionally, search coverage is now logged, allowing operators to monitor queries with degraded coverage and make necessary adjustments to application capacity. Vespa invites community feedback and contributions to continue its development.