On 30 November 2015 at 09:34, Burkhard Linke <Burkhard.Linke@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > On 11/30/2015 10:08 AM, Carsten Schmitt wrote: >> But after entering the last command, the cluster starts rebalancing again. >> >> And that I don't understand: Shouldn't be one rebalancing process enough >> or am I missing something? > > Removing the OSD changes the weight for the host, thus a second rebalance is > necessary. > > The best practice to remove an OSD involves changing the crush weight to 0.0 > as first step. I found this out the hard way too. It's unfortunate that the documentation is, in my mind, not helpful on the order of commands to run. http://docs.ceph.com/docs/master/rados/operations/add-or-rm-osds/#removing-osds-manual Is there any good reason why the documentation recommends this double-rebalance approach? Or conversely, any reason not to change the documentation so that rebalances only happen once? Thanks, Andy _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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