(Resending due to accidentally using HTML instead of plain text) On Wed, 2018-12-05 at 15:22 -0500, Anna Schumaker wrote: > Hi Soumya, > > What conditions are you seeing the writes? It could be the kernel trying to > flush out data to free up memory for other processes. > > I don't think preemptively writing back data is necessarily a bad thing > though, even with a write delegation. If the server decides to recall the > delegation, we wouldn't keep it waiting as long while we write back local > data. Additionally, if the client crashes then any updates might have already > had a chance to sync to the server. > > I hope this helps! > Anna > > On Mon, Dec 3, 2018 at 2:55 AM Soumya Koduri <skoduri@xxxxxxxxxx> wrote: > > Hi, > > > > In our NFSv4.1 Delegations testing we observed that NFS client sends > > WRITE requests to the server even when granted WRITE_DELEGATION. I see > > that only OPEN/CLOSE and LOCK operations are served locally by the client. > > > > Please confirm if this behavior is expected and if yes, can it be > > improved to avoid sending WRITEs to the server until the application > > does fsync. > > > > Thanks, > > Soumya
