> > I have a clean cluster state, with the osd's that I am going to remove a > reweight of 0. And then after executing 'ceph osd purge 19', I have again > remapping+backfilling done? > > > > Is this indeed the correct procedure, or is this old? > > https://docs.ceph.com/en/latest/rados/operations/add-or-rm- > osds/#removing-osds-manual > > When you either 1) purge an OSD, or 2) ceph osd crush reweight to 0.0 > you change the total weight of the OSD-host, so if you ceph osd > reweight an OSD, it will push its PGs to other OSDs on the same host > and empty itself, but that host is now having more PGs than it really > should. When you do one of the two above steps, the host weight > becomes corrected and the extra PGs move to other osd hosts. This will > also affect the total weight of the whole subtree, so other PGs might > start moving aswell, on hosts not directly related, but this is more > uncommon. >
You are right, I did not read my own manual correctly applied the reweight and not the crush reweight. _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
