Hi Sage, Is the update running in parallel for all OSDs being restarted? Because 5 min per server is different than 150 min when there are 30 OSDs there.. Thank you, George > On Feb 8, 2017, at 22:09, Sage Weil <sweil@xxxxxxxxxx> wrote: > > Hello, ceph operators... > > Several times in the past we've had to do some ondisk format conversion > during upgrade which mean that the first time the ceph-osd daemon started > after upgrade it had to spend a few minutes fixing up it's ondisk files. > We haven't had to recently, though, and generally try to avoid such > things. > > However, there's a change we'd like to make in FileStore for luminous (*) > and it would save us a lot of time and complexity if it was a one-shot > update during the upgrade. I would probably take in the neighborhood of > 1-5 minutes for a 4-6TB HDD. That means that when restarting the daemon > during the upgrade the OSD would stay down for that period (vs the usual > <1 restart time). > > Does this concern anyone? It probably means the upgrades will take longer > if you're going host by host since the time per host will go up. > > sage > > > * eliminate 'snapdir' objects, replacing them with a head object + > whiteout. > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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