On Mon, 13 Oct 2014, Wido den Hollander wrote: > On 13-10-14 20:16, Sage Weil wrote: > > With Giant, we are at a point where we would ask that everyone try > > things out for any non-production workloads. We are very interested in > > feedback around stability, usability, feature gaps, and performance. We > > recommend: > > A question to clarify this for anybody out there. Do you think it is > safe to run CephFS on a cluster which is doing production RBD/RGW I/O? > > Will it be the MDS/CephFS part which breaks or are there potential issue > due to OSD classes which might cause OSDs to crash due to bugs in CephFS? > > I know you can't fully rule it out, but it would be useful to have this > clarified. I can't think of any issues that this would cause with the OSDs. CephFS isn't using any rados classes; just core rados functionality that RGW also uses. On the monitor side, there is a reasonably probability of triggering a CephFS related health warning. There is also the potential for code in the MDSMonitor.cc code to crash the mon, but I don't think we've seen any problems there any time recently. So, probably safe. sage -- 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
