Monthly summary for 2025-12: Delivered File Cache TTL Management Refactor in Doris, introducing a dedicated TTL manager and shifting TTL management scope from block-level to tablet-level to enhance efficiency, organization, and cache lifecycle predictability. The change cleans up ad-hoc TTL bookkeeping and related GC/expiration helpers, consolidating TTL updates under BlockFileCacheTtlMgr and enabling better cache scalability across tablets.

September 2025 monthly summary focusing on business value and technical achievements across two repositories. Key features delivered include documentation enhancements for the Doris file cache and improvements to cache robustness and performance on cloud deployments. Major bugs fixed include removing the file descriptor limit for the segment cache in cloud mode and solidifying read_cache_directly behavior with improved eviction and I/O efficiency. Overall impact: increased reliability and scalability of the file cache, especially in cloud environments, with clearer documentation and better maintainability. Technologies demonstrated include file cache architecture, FD management, LRU caching patterns, background eviction threads, and cross-repo collaboration.

November 2024 monthly summary for apache/doris-website focusing on concrete deliverables and business impact. Primary work this month was a targeted documentation update for the Doris file cache eviction policy, designed to reduce operational risk and improve onboarding speed.