Managing File Descriptors for Durability and Performance

ReductStore focuses on managing file descriptors to balance durability, write performance, and remote storage costs. Closing a file does not guarantee that data has reached persistent storage, necessitating the use of fsync, which can negatively impact write efficiency. ReductStore addresses this by keeping file descriptors open and utilizing a caching mechanism. Additionally, it employs background synchronization to minimize data loss risks while optimizing throughput.