Hi, To not confuse the ceph daemons during a package upgrade ( see http://tracker.ceph.com/issues/9153#note-13 for instance ), it would be better to stop the ceph daemons while ceph is being upgraded. Does that sound reasonable ?
Here is how it could be done for .deb packages : https://github.com/dachary/ceph/commit/cf3a0e7bef25e5190f3cdb69e57cb6b868d806fa and there probably is a way to do something similar with RPM packages. Cheers -- Loïc Dachary, Artisan Logiciel Libre
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