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FastLoad, Didi’s one‑click DTS platform, accelerates migration of terabyte‑scale offline data into its Fusion storage by using RocksDB’s IngestFile to import SST files directly, cutting a 1 TB load from twelve hours to one, while supporting thousands of daily tasks with 99.99% stability.
Tencent Cloud’s CynosDB for MySQL separates compute from distributed storage, using a log‑driven, stateless architecture that eliminates local I/O, enables sub‑second failover, 2.5× write performance, lock‑free structures, async group‑commit, compressed logs, fast parallel recovery, and scalable replication, with future plans for external buffer pools and multi‑master support.
The talk detailed CynosDB’s compute‑intelligent storage and multi‑read architecture, explaining TXSQL, Space Manager, DBStore, and Atlas’s two‑layer distributed storage with three‑replica nodes, high‑availability recovery, snapshot and migration features, and advanced data routing and I/O protocols for robust, fault‑tolerant database services.
CynosDB’s Storage Cluster Manager (SCM) orchestrates storage utilization by maintaining pool‑SG relationships in Etcd, using Raft for leader election, exposing HTTP APIs, and running heartbeat‑driven pool and segment‑group schedulers that allocate, expand, contract, and balance SG replicas across regions, zones, racks, and hosts.