Hi Cephers, There's some physical maintainance I need to perform on an OSD node. Very likely the maintainance is going to take a while since it involves replacing components, so I would like to be well prepared. Unfortunately it is no option to add another OSD node or rebalance at this time, so I'm planning to operate in degraded state during the maintainance. If at all possible, I would to shut down the OSD node cleanly and prevent slow (or even blocking) requests on Ceph clients. Just setting the noout flag and shutting down the OSDs on the given node is not enough as it seems. In fact clients do not act that well in this case. Connections time out and for a while I/O seems to stall. Any thoughts on this, anyone? For example, is it a sensible idea and are writes still possible? Let's assume there are OSDs on to the to-be-maintained host which are primary for sure. Thanks in advance! Cheers, Kees _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |