July 2026 Summaries

Weaviate has introduced a query profiling feature to address the inefficiencies of the traditional slow query log, which required node restarts and manual log analysis to diagnose slow queries. Query profiling, available in Weaviate's v1.38 release, allows users to set a per-query, opt-in flag that provides detailed timing breakdowns inline with the query response, eliminating the need for restarts and manual log stitching. It offers a comprehensive view of query performance across the entire cluster by aggregating metrics from all nodes involved in the query, covering aspects like vector search, keyword scoring, and filter evaluation, but excluding post-processing tasks like generative modules. This feature is designed for debugging and optimization rather than production environments and is accessible through various programming languages and interfaces, providing a more direct and efficient method for diagnosing and resolving query performance issues.