You're going to need to tell us *exactly* what you're doing. I presume this uses CephFS somehow? Are you accessing via NFS or something? Using what client versions?
CephFS certainly isn't supposed to allow this, and I don't think there are any currently known bugs which could leak it. But there are lots of things you can stack on top of it which won't provide the same guarantees. On Wed, Sep 19, 2018 at 6:45 AM Thomas Sumpter <thomas.sump...@irdeto.com> wrote: > Hello, > > > > We have Mimic version 13.2.1 using Bluestore. OSDs are using NVMe disks > for data storage (in AWS). > > Four OSDs are active in replicated mode. > > Further information on request, since there are so many config options I > am not sure where to focus my attention yet. Assume we have default > options. > > > > We have a scenario where one file is continuously been written to and read > from. > > Very occasionally the write operation is completed but then the subsequent > read op on that file does not contain this new data for a brief period. > > Does anyone know a reason for the delay between write operations being > completed and the new data that was written to be present in the file? > > It is not very easily reproducible, but possible with fast scripted > attempts. We do not have this problem when using other filesystems. > > > > Note: there is one client writing data and 2 clients reading data to/from > this file. > > > > Many Thanks! > > Tom > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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