Hi Patrick, thanks for your quick response. just one concern, if disable direct I/O, multiple clients access same file via different mount point on different machines, will it cause data inconsistency? for example, some client modify one file which has old data buffered on the other client. Thanks, Sheng On Tue, Jul 18, 2017 at 9:11 AM, Patrick Donnelly <pdonnell@xxxxxxxxxx> wrote: > On Tue, Jul 18, 2017 at 9:07 AM, sheng qiu <herbert1984106@xxxxxxxxx> wrote: >> ceph version is v11.2, no special config changes, just some regular >> configurations for filestore backend. >> >> Fio is using libaio, with direct=1, running 4KB block size. > > Don't use direct I/O unless you want to benchmark synchronous I/O: > http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-July/019478.html > > -- > Patrick Donnelly -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
