持久化写入
原文英文,约800词,阅读约需3分钟。发表于: 。When writing data to a file, one of the things you have to deal with is ensuring the data is reliably persisted to permanent storage device. Storage devices like magnetic disks(HDD), SSDs,...
写入文件时,数据可能暂时存储在内存中,导致断电时数据丢失。为减少风险,可使用无缓存写入或调用fsync/fdatasync确保数据写入存储设备。文件系统行为也会影响数据持久性。