In July 2025, delivered a resilience-focused enhancement to the AutoID service in pingcap/tidb by introducing an etcd connection retry mechanism during leader discovery and allocation. This change improves responsiveness and reliability under transient etcd issues, reduces backoff, and enhances observability through updated logging and metrics. The work emphasizes stability of ID generation in distributed deployments with minimal performance impact and clearer operator signals.

April 2025 achievements for pingcap/tidb-engine-ext: Delivered the follower read cache for TiKV ReadIndexContext to optimize follower reads and improve overall read throughput. Implemented a follower-side cache to store and retrieve read_index_safe_ts, enabling followers to serve stale reads more efficiently. Added metrics to monitor cache behavior and comprehensive tests to validate correctness and performance under realistic workloads. Commit 1f44fd9a8e59d06c39834cfa0bd4d47e2c3c2959 (follower read cache #18173).