Hi there, I have a giant cluster with 60 OSDs on 6 OSD Hosts.
Now I want to do maintenance on one of the OSD Hosts. The documented Procedure is to "ceph osd set noout" and then shutdown the OSD Node for maintenance. However, as soon as I even shut down 1 OSD I get around 200 slow requests and the number of slow requests is growing for minutes. The test was done at night with low IOPS and I was expecting the cluster to handle this condition much better. Is there some way of a more graceful shutdown of OSDs so that I can prevent those slow requests ? I suppose it takes some time until monitor gets notified that an OSD was shutdown. Thanks Christoph _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
