Hi, On 2018-04-23 08:30:25 +1000, Tim Cross wrote: > the recent article in LWN regarding issues with fsync and error > reporting in the Linux kernel and the potential for lost data has > prompted me to ask 2 questions. Note that you need to have *storage* failures for this to happen. I.e. your disk needs to die, and there's no raid or such to fix the issue. > 1. Is this issue low level enough that it affects all potentially > supported sync methods on Linux? For example, if you were concerned > about this issue and you had a filesystem which supports open_sync or > open_datasync etc, is switching to one of these options something which > should be considered or is this issue low level enough that all sync > methods are impacted? No, the issue is largely about datafiles whereas the setting you refer to is about the WAL. Greetings, Andres Freund
