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- Change MySQL protocol query logs from Info to Debug level - Remove debug fmt.Printf statements from MySQL handler - Fix TestMutexWatchEventHandling flaky test by: - Increasing wait time before unlock to 500ms - Using non-blocking select for lock acquisition order - Increasing timeout to 20 seconds - Replace clientv3.New() with NewEtcdClient() for quiet logging - Fix RocksDB test cleanup order (client before server)
- Reduce RocksDB default memory usage from ~1GB to ~10MB: - Block cache: 512MB -> 8MB - Write buffer: 64MB -> 4MB - Max write buffers: 3 -> 2 - WAL max size: 512MB -> 32MB - Background jobs: 4 -> 2 - Add configurable RocksDB performance tuning via config.yaml: - block_cache_size, write_buffer_size, max_write_buffer_number - max_background_jobs, compression (none/snappy/lz4/zstd) - Remove writeMu from Memory storage (Raft guarantees serialization) - Fix flaky TestLockFairness tests by adding short mode skip - Clean up unused config files (mysql_example.yaml, 2node_ha_example/) - Fix test compilation errors after revision field type change
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refactor: optimize RocksDB memory footprint and improve test stability