February 2026 highlights: Delivered essential documentation for the Cache Query Limit feature on the doris-website to help users cap file cache usage per query, improving cache resource governance in multi-tenant environments. Fixed a bug in the Task Controller to accurately calculate running time under the workload policy, increasing reliability of query-time measurements. Strengthened overall quality with regression, unit, and manual tests validating timing logic. These efforts improve product guidance, operational reliability, and readiness for production deployments.

January 2026 monthly summary for apache/doris focusing on File Cache Query Limit work. Delivered end-to-end feature enhancement with usage entry point, independent quota controls, and full test coverage; added a robust FE/BE parameter flow (enable_file_cache_query_limit, file_cache_query_limit_percent_soft, and policy/session overrides) with Thrift transmission; implemented per-query FileCacheContext with capacity allocation (max(capacity * percent / 100, min(capacity/2, 256MB))) ensuring isolation and resource safety; expanded test suite and addressed core framework gaps related to entry point, quota independence, and test coverage.

December 2025 monthly summary for apache/doris-website focusing on improving observability and performance tuning through SqlDigest-based slow query analysis. Implemented usage of SqlDigest for analyzing slow SQL, added an audit threshold to generate SqlDigest aggregates, and prepared cross-version and bilingual documentation to drive adoption and actionable insights across environments (dev, 4.x, 3.x, 2.1).

2025-11 Monthly Summary: Delivered File Cache Observability Metrics in apache/doris, adding readsize and hitsize metrics to file_cache statistics and exposing them via backend counters. Implemented regression tests to validate the metrics integration and prevent regressions. This work enhances cache observability, enables data-driven tuning, and improves overall caching performance and reliability across the system.

October 2025 performance summary focused on strengthening File Cache reliability, observability, and deployment correctness across Doris builds. The month delivered targeted improvements to metrics accuracy, enhanced monitoring, and a robust testing baseline for cache behavior, delivering clear business value in reliability and operational insight.

July 2025 Monthly Summary: Delivered Regression Testing Documentation Enhancements for apache/doris-website to streamline and standardize regression test environments. The update adds details on pre-container startup network configuration checks, enhanced descriptions for Hive-related Docker Compose files, and clearer container log viewing commands. These changes reduce setup time, minimize configuration errors, and improve testing reliability across environments.

June 2025 monthly summary focusing on features delivered and impact across Doris repos. Highlights include documentation improvements for segcompaction_batch_size in the website and enhanced file cache metrics exposure in Doris core, enabling better observability and data-driven performance tuning. No critical bugs fixed this month; efforts centered on reducing operator toil and strengthening release quality.

May 2025 monthly summary focusing on targeted reliability improvements and user-facing clarity across Doris core and website. Delivered fixes to metrics reporting and UI text, plus documentation updates to reflect current toolchain requirements, enhancing data integrity, user experience, and developer onboarding.

April 2025: Focused on improving build reproducibility and developer onboarding for Doris website docs. Delivered targeted guidance for JDK 17 and build environment to support Doris 3.0+ and master builds, clarified environment requirements across versions, updated Maven download references, and noted ARM compilation considerations. These changes streamline local setup for contributors and reduce build-related friction, contributing to faster release readiness.