On Sat, Apr 15, 2017 at 7:19 PM, Gandalf Corvotempesta <gandalf.corvotempesta@xxxxxxxxx> wrote: > Il 15 apr 2017 5:48 PM, "John Spray" <jspray@xxxxxxxxxx> ha scritto: > > MDSs do not replicate to one another. They write all metadata to a > RADOS pool (i.e. to the OSDs), and when a failover happens, the new > active MDS reads the metadata in. > > > Is MDS atomic? A successful ack is sent only after data is properly wrote on > radios pool or is wrote in background Your client mount gives you POSIX semantics -- it obeys the normal rules around fsync, etc. John _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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