Andres Freund <andres@xxxxxxxxxxx> writes: > 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 OK, thanks. -- Tim Cross
